{"id":37608,"date":"2017-12-05T00:51:25","date_gmt":"2017-12-05T00:51:25","guid":{"rendered":"https:\/\/tiller.cronometerdev.com\/blog\/?p=37608"},"modified":"2025-02-10T13:03:06","modified_gmt":"2025-02-10T21:03:06","slug":"cronometers-nutrient-ratios-calcium-magnesium","status":"publish","type":"post","link":"https:\/\/cronometer.com\/blog\/cronometers-nutrient-ratios-calcium-magnesium\/","title":{"rendered":"Understanding The Calcium:Magnesium Ratio"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"37608\" class=\"elementor elementor-37608\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-243747b7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"243747b7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6be9977d\" data-id=\"6be9977d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5f835ca elementor-widget elementor-widget-heading\" data-id=\"5f835ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">guest post by susan macfarlane, registered dietitian nutritionist<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4565d3 elementor-widget elementor-widget-heading\" data-id=\"d4565d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Is Calcium?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cdfff86 elementor-widget elementor-widget-text-editor\" data-id=\"cdfff86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Calcium is an essential mineral well known for its role in bone health. About 99% of our body\u2019s calcium is found in the bones and teeth where it maintains the structure of the skeletal system (1). The body\u2019s remaining calcium is found in soft tissues and blood where it is regulated to keep calcium in a tight range. If blood calcium drops, the body will take calcium from the bones, which over time, leads to weakened bone mass (a risk factor for osteoporosis). Calcium in the blood has many roles, including muscle contraction, nerve impulse transmission, hormone secretion, and maintenance of healthy blood vessels and blood clotting (1).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d0c2f6 elementor-widget elementor-widget-heading\" data-id=\"8d0c2f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Calcium Deficiency<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-541f618 elementor-widget elementor-widget-text-editor\" data-id=\"541f618\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Acute calcium deficiency is challenging to detect since blood calcium is maintained within a narrow concentration. Low blood calcium is only seen in diseases of the parathyroid gland, chronic kidney disease, alcoholism, or with deficiencies of vitamin D or magnesium (1).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a9355e elementor-widget elementor-widget-heading\" data-id=\"2a9355e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How Much Calcium Do I Need?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b97866 elementor-widget elementor-widget-text-editor\" data-id=\"1b97866\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Determining calcium requirements has been somewhat challenging since factors beyond calcium, such as vitamin D status, dietary pattern, and physical fitness, impact bone health. Specific targets for intake vary slightly by country, with some suggesting that current recommendations are in excess of needs (2). The World Health Organization has also suggested that calcium requirements for individuals consuming plant-based diets may be lower since less calcium is lost in the urine (an outcome seen with high intakes of animal-based protein; 3).<\/p><p>Nonetheless, it is likely best to err on the side of caution by meeting the RDA (<em>Recommended Dietary Allowance<\/em>) for calcium highlighted below:<\/p><table width=\"736\"><tbody><tr><td rowspan=\"2\" width=\"368\"><strong>Age Group<\/strong><\/td><td colspan=\"2\" width=\"245\"><strong>RDA (mg\/day)<\/strong><\/td><td width=\"123\"><strong>UL (mg\/day)<\/strong><\/td><\/tr><tr><td width=\"123\"><strong>Male<\/strong><\/td><td width=\"123\"><strong>Female<\/strong><\/td><td width=\"123\"><strong>\u00a0<\/strong><\/td><\/tr><tr><td width=\"368\">0-6 months<\/td><td width=\"123\">200*<\/td><td width=\"123\">200*<\/td><td width=\"123\">1000<\/td><\/tr><tr><td width=\"368\">7-12 months<\/td><td width=\"123\">260*<\/td><td width=\"123\">260*<\/td><td width=\"123\">1500<\/td><\/tr><tr><td width=\"368\">1-3 years<\/td><td width=\"123\">700<\/td><td width=\"123\">700<\/td><td width=\"123\">2500<\/td><\/tr><tr><td width=\"368\">4-8 years<\/td><td width=\"123\">1000<\/td><td width=\"123\">1000<\/td><td width=\"123\">2500<\/td><\/tr><tr><td width=\"368\">9-18 years<\/td><td width=\"123\">1300<\/td><td width=\"123\">1300<\/td><td width=\"123\">3000<\/td><\/tr><tr><td width=\"368\">19-50 years<\/td><td width=\"123\">1000<\/td><td width=\"123\">1000<\/td><td width=\"123\">2500<\/td><\/tr><tr><td width=\"368\">51-70 years<\/td><td width=\"123\">1000<\/td><td width=\"123\">1200<\/td><td width=\"123\">2000<\/td><\/tr><tr><td width=\"368\">71+<\/td><td width=\"123\">1200<\/td><td width=\"123\">1200<\/td><td width=\"123\">2000<\/td><\/tr><\/tbody><\/table><table width=\"737\"><tbody><tr><td width=\"737\"><p>* Recommendation is an AI (Adequate Intake)<\/p><p>For requirements needed in pregnancy\/breastfeeding, please click <a href=\"https:\/\/www.nap.edu\/read\/11537\/chapter\/32\">here.<\/a><\/p><p>Source: Institute of Medicine. Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. Washington D.C.: The National Academies Press; 2006. Calcium; p 286-295.<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77fba53 elementor-widget elementor-widget-heading\" data-id=\"77fba53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Nutrients That Interact With Calcium<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d92a737 elementor-widget elementor-widget-text-editor\" data-id=\"d92a737\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Although protein can cause calcium losses in the urine, it also enhances calcium absorption (4). This finding has led researchers to encourage a moderate protein intake at the RDA.<\/p><p>Other vitamins that interact with calcium include sodium (increases losses), potassium (reduces losses), and magnesium, which is discussed below.<\/p><p>\u00a0Excessive caffeine, oxalic acids \u2013 found in spinach, rhubarb, and sweet potatoes \u2013 along with phytic acid may also reduce the absorption of calcium (4).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61a2c33 elementor-widget elementor-widget-heading\" data-id=\"61a2c33\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Can I Consume Too Much Calcium?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3bf8cef elementor-widget elementor-widget-text-editor\" data-id=\"3bf8cef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The upper limit for calcium has been set at 2500 mg for healthy adults to prevent a condition known as \u2018calcium-alkali syndrome\u2019 (5). This condition is more commonly seen in chronic high-dose calcium supplementation and is characterized by high calcium in the blood and kidney failure (1).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc2a977 elementor-widget elementor-widget-heading\" data-id=\"dc2a977\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Foods High In Calcium<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58d3357 elementor-widget elementor-widget-text-editor\" data-id=\"58d3357\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>\u00a0<\/h2><table width=\"722\"><tbody><tr><td rowspan=\"11\" width=\"123\">Plant-based<\/td><td width=\"363\">Plant Milks*<\/td><td width=\"124\">1 cup<\/td><td width=\"113\">321-324<\/td><\/tr><tr><td width=\"363\">Tofu, Firm<\/td><td width=\"124\">\u00bd cup<\/td><td width=\"113\">253<\/td><\/tr><tr><td width=\"363\">Blackstrap Molasses<\/td><td width=\"124\">1 tbsp<\/td><td width=\"113\">200<\/td><\/tr><tr><td width=\"363\">Almond Cashew Yogurt**<\/td><td width=\"124\">125 g<\/td><td width=\"113\">165<\/td><\/tr><tr><td width=\"363\">Beans (soy, pinto, navy, white, chickpeas, turtle)<\/td><td width=\"124\">1 cup<\/td><td width=\"113\">80-175<\/td><\/tr><tr><td width=\"363\">Bok Choy, cooked<\/td><td width=\"124\">1 cup<\/td><td width=\"113\">158<\/td><\/tr><tr><td width=\"363\">Tahini<\/td><td width=\"124\">2 tbsp<\/td><td width=\"113\">128<\/td><\/tr><tr><td width=\"363\">Almond Butter<\/td><td width=\"124\">2 tbsp<\/td><td width=\"113\">108<\/td><\/tr><tr><td width=\"363\">Kale, Cooked<\/td><td width=\"124\">1 cup<\/td><td width=\"113\">94<\/td><\/tr><tr><td width=\"363\">Tempeh, Firm<\/td><td width=\"124\">\u00bd cup<\/td><td width=\"113\">92<\/td><\/tr><tr><td width=\"363\">Broccoli, Cooked<\/td><td width=\"124\">1 cup<\/td><td width=\"113\">62<\/td><\/tr><tr><td rowspan=\"6\" width=\"123\">Animal-based<\/td><td width=\"363\">Cheese<\/td><td width=\"124\">50 g<\/td><td width=\"113\">252-506<\/td><\/tr><tr><td width=\"363\">Cow\u2019s Milk<\/td><td width=\"124\">1 cup<\/td><td width=\"113\">291-322<\/td><\/tr><tr><td width=\"363\">Sardines<\/td><td width=\"124\">2 \u00bd oz<\/td><td width=\"113\">286<\/td><\/tr><tr><td width=\"363\">Salmon<\/td><td width=\"124\">2 \u00bd oz<\/td><td width=\"113\">179-212<\/td><\/tr><tr><td width=\"363\">Yogurt<\/td><td width=\"124\">\u00bd cup<\/td><td width=\"113\">175-183<\/td><\/tr><tr><td width=\"363\">Cottage Cheese<\/td><td width=\"124\">\u00bd cup<\/td><td width=\"113\">73-133<\/td><\/tr><tr><td colspan=\"4\" width=\"722\"><p>*Check the label as not all plant-milks are fortified<\/p><p>**Packaging information<\/p><p>Source: Dietitians of Canada. Food sources of calcium. 2016. Available <a href=\"https:\/\/www.dietitians.ca\/Your-Health\/Nutrition-A-Z\/Calcium\/Food-Sources-of-Calcium.aspxhttps:\/\/www.dietitians.ca\/Your-Health\/Nutrition-A-Z\/Calcium\/Food-Sources-of-Calcium.aspx\">here<\/a>.<\/p><p>; Physicians Committee for Responsible Medicine. Calcium in Plant-Based Diets. n.d. Available <a href=\"http:\/\/www.pcrm.org\/health\/diets\/vsk\/vegetarian-starter-kit-calcium\">here<\/a>.<\/p><p>Values for calcium are shown in mg.<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-246d1ff elementor-widget elementor-widget-heading\" data-id=\"246d1ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Calcium And Disease<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d2cd6d elementor-widget elementor-widget-heading\" data-id=\"1d2cd6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Cancer<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4496047 elementor-widget elementor-widget-text-editor\" data-id=\"4496047\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A growing body of research has emerged raising concern about the link between dairy products and prostate cancer (1). The results of a 2015 systematic review and meta-analysis showed that high intakes of dairy, total milk, whole milk, low-fat milk, cheese, and dairy calcium was associated with a modest, but significant risk of prostate cancer (5). This study did not find an association between plant-based milks or calcium supplements and the risk for prostate cancer (5).<\/p><p>The association between dairy products, calcium supplementation, and colorectal cancer is not as clear, with some studies showing a benefit of dairy products or calcium supplementation (6-8), with others failing to find any association (9,10).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-097caec elementor-widget elementor-widget-heading\" data-id=\"097caec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\"><h4>Cardiovascular Disease<\/h4><\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-599e118 elementor-widget elementor-widget-text-editor\" data-id=\"599e118\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Earlier studies have raised concerns that calcium supplements increase the risk of cardiovascular disease. However, the results of a recent systematic review and meta analysis concluded that calcium intakes that did not exceed the upper limit for calcium, from either supplements or food, were not associated with an increased risk of cardiovascular disease (11). Regardless, it may be wise to err on the side of caution, aiming for an intake that meets, but doe not exceed the RDA for calcium, until more research becomes available.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f119e31 elementor-widget elementor-widget-heading\" data-id=\"f119e31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Is Magnesium?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c5055c elementor-widget elementor-widget-text-editor\" data-id=\"0c5055c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Magnesium is involved in more than 300 reactions in the body, assisting in the release of energy from fat and carbohydrates, helping with DNA production, supporting nerve impulses, muscle contractions, as well as normal heart rhythms, facilitating cellular communication, and providing structure to bones and body tissues (12).<\/p><p>Estimates suggest that almost half of the US population is not meeting recommended requirements<a href=\"#_edn1\">[i]<\/a> for magnesium, with the lowest levels of intake being found among the elderly (13). Older adults are believed to be disproportionately affected due to low dietary intake of magnesium, reduced absorption, and increased urinary losses (12).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ecff6b elementor-widget elementor-widget-heading\" data-id=\"9ecff6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Magnesium Defficiency<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5058b1 elementor-widget elementor-widget-text-editor\" data-id=\"a5058b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Overt magnesium deficiency is rare in developed countries, but is more commonly seen in specific conditions, including gastrointestinal disorders, renal disease, diabetes, and alcoholism (12).<\/p><p>When magnesium deficiency has been experimentally induced in humans, tremor, muscle spasms, loss of appetite, nausea, vomiting, and personality changes occurred (12). In addition, magnesium deficiency also disrupts calcium balance, which can exaggerate vitamin D deficiency (12).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f4be62 elementor-widget elementor-widget-heading\" data-id=\"4f4be62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How Much Magnesium Do I Need?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b689a4 elementor-widget elementor-widget-text-editor\" data-id=\"4b689a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Magnesium requirements that will meet ~98% of a healthy population for various age groups can be viewed below. Requirements for adults and children were set following balance studies that aimed to match intake to losses (14).<\/p><table width=\"730\"><tbody><tr><td rowspan=\"2\" width=\"365\"><strong>Age Group<\/strong><\/td><td colspan=\"2\" width=\"243\"><strong>RDA (mg\/day)<\/strong><\/td><td width=\"122\"><strong>UL (mg\/day)<\/strong><\/td><\/tr><tr><td width=\"122\"><strong>Male<\/strong><\/td><td width=\"122\"><strong>Female<\/strong><\/td><td width=\"122\"><strong>\u00a0<\/strong><\/td><\/tr><tr><td width=\"365\">0-6 months<\/td><td width=\"122\">30*<\/td><td width=\"122\">30*<\/td><td width=\"122\">Unknown<\/td><\/tr><tr><td width=\"365\">7-12 months<\/td><td width=\"122\">75*<\/td><td width=\"122\">75*<\/td><td width=\"122\">Unknown<\/td><\/tr><tr><td width=\"365\">1-3 years<\/td><td width=\"122\">80<\/td><td width=\"122\">80<\/td><td width=\"122\">65<\/td><\/tr><tr><td width=\"365\">4-8 years<\/td><td width=\"122\">130<\/td><td width=\"122\">130<\/td><td width=\"122\">110<\/td><\/tr><tr><td width=\"365\">9-13 years<\/td><td width=\"122\">240<\/td><td width=\"122\">240<\/td><td width=\"122\">350<\/td><\/tr><tr><td width=\"365\">14-18 years<\/td><td width=\"122\">410<\/td><td width=\"122\">360<\/td><td width=\"122\">350<\/td><\/tr><tr><td width=\"365\">19-30 years<\/td><td width=\"122\">400<\/td><td width=\"122\">310<\/td><td width=\"122\">350<\/td><\/tr><tr><td width=\"365\">31-70+<\/td><td width=\"122\">420<\/td><td width=\"122\">320<\/td><td width=\"122\">350<\/td><\/tr><tr><td colspan=\"4\" width=\"730\"><p>* Recommendation is an AI (Adequate Intake)<\/p><p>For requirements needed in pregnancy\/breastfeeding, please click <a href=\"https:\/\/www.nap.edu\/read\/11537\/chapter\/38\">here.<\/a><\/p><p>Source: Institute of Medicine. Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. Washington D.C.: The National Academies Press; 2006. Magnesium; p 340-349.<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97c537f elementor-widget elementor-widget-heading\" data-id=\"97c537f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Nutrients That Interact With Magnesium<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6776c24 elementor-widget elementor-widget-text-editor\" data-id=\"6776c24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Like calcium, many nutrients and food components can interfere with magnesium. Phytic acid found in raw beans, seeds, nuts and grains, as well as excessive intake of calcium (&gt;2600 mg) and phosphorus can decrease absorption of magnesium. In addition, magnesium status is impacted by too little or too much protein, warranting intake around the RDA (14).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5d3423 elementor-widget elementor-widget-heading\" data-id=\"c5d3423\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Can I Consume Too Much Magnesium?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f79384 elementor-widget elementor-widget-text-editor\" data-id=\"1f79384\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The upper limit for magnesium applies to supplements only and has been set at 350 mg per day for individuals aged 9 years and older (14). Since magnesium is a natural laxative, intakes above this amount can cause diarrhea (12). Individuals with renal disease are more likely to experience magnesium toxicity and should avoid supplementation, unless approved by their medical doctor (12).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f899f0 elementor-widget elementor-widget-heading\" data-id=\"9f899f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Foods High In Magnesium<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68ae8b8 elementor-widget elementor-widget-text-editor\" data-id=\"68ae8b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Plant-based foods, especially seeds, nuts, beans, and wheat bran, are the best sources of magnesium.<\/p><table width=\"727\"><tbody><tr><td width=\"355\">Pumpkin seeds<\/td><td width=\"182\">\u00bc cup<\/td><td width=\"182\">317<\/td><\/tr><tr><td width=\"355\">Black-eyed peas<\/td><td width=\"182\">\u00be cup<\/td><td width=\"182\">121<\/td><\/tr><tr><td width=\"355\">Tempeh<\/td><td width=\"182\">\u00be cup<\/td><td width=\"182\">116<\/td><\/tr><tr><td width=\"355\">Sunflower seeds<\/td><td width=\"182\">\u00bc cup<\/td><td width=\"182\">115<\/td><\/tr><tr><td width=\"355\">Flaxseeds<\/td><td width=\"182\">2 tbsp<\/td><td width=\"182\">111<\/td><\/tr><tr><td width=\"355\">Soybeans<\/td><td width=\"182\">\u00be cup<\/td><td width=\"182\">109<\/td><\/tr><tr><td width=\"355\">Almonds<\/td><td width=\"182\">\u00bc cup<\/td><td width=\"182\">88-109<\/td><\/tr><tr><td width=\"355\">All Bran Cereals<\/td><td width=\"182\">30 g<\/td><td width=\"182\">85-97<\/td><\/tr><tr><td width=\"355\">Wheat germ<\/td><td width=\"182\">\u00bc cup<\/td><td width=\"182\">96<\/td><\/tr><tr><td colspan=\"3\" width=\"723\"><p>Source: Source: Dietitians of Canada. Food sources of calcium. 2016. Available <a href=\"https:\/\/www.dietitians.ca\/your-health\/nutrition-a-z\/minerals\/food-sources-of-magnesium.aspx\">here<\/a>.<\/p><p>Values for magnesium are shown in mg.<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ee95a8 elementor-widget elementor-widget-heading\" data-id=\"5ee95a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Magnesium And Disease<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-145307a elementor-widget elementor-widget-text-editor\" data-id=\"145307a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Magnesium deficiency has been implicated in several chronic diseases, including hypertension, type 2 diabetes, and cardiovascular disease. The results of a meta-analysis showed that supplemental magnesium helped reduce blood pressure in individuals with hypertension (15). In addition, magnesium, along with dietary fibre and potassium, is a key component of the DASH diet; a dietary pattern shown to effectively reduce blood pressure (16).<\/p><p>Several meta-analyses have also found an inverse relationship between magnesium intake and the risk of developing type 2 diabetes (17-19), while the risk of having a cardiovascular event (including stroke, heart attack, and coronary heart disease) was found to be 15% lower among individuals with a higher intake of magnesium (20).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dded505 elementor-widget elementor-widget-heading\" data-id=\"dded505\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Checking Your Calcium:Magnesium Ratio In Cronometer<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ac0968 elementor-widget elementor-widget-text-editor\" data-id=\"2ac0968\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Our Nutrient Ratios are available to all Gold subscribers. If you&#8217;re not already a Gold subscriber, <a href=\"https:\/\/77pg.adj.st\/cronometer\/subscriptionPage?adj_t=1c1dpbc4_1cglfsnp_1cppsvqi&amp;adj_label=#plans\">upgrade here<\/a>.<\/p><p>Scroll all the way to the bottom of your Daily Report or Nutrition Report, and you&#8217;ll find your Calcium:Magnesium nutrient ratio.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0bf29b elementor-widget elementor-widget-image\" data-id=\"d0bf29b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"472\" height=\"1024\" src=\"https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM-472x1024.jpeg\" class=\"attachment-large size-large wp-image-55627\" alt=\"\" srcset=\"https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM-472x1024.jpeg 472w, https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM-138x300.jpeg 138w, https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM-768x1665.jpeg 768w, https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM-709x1536.jpeg 709w, https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM-945x2048.jpeg 945w, https:\/\/cronometer.com\/blog\/wp-content\/uploads\/2025\/01\/Screenshot-2024-06-27-at-12.44.44\u202fPM.jpeg 1179w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec30a92 elementor-widget elementor-widget-heading\" data-id=\"ec30a92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Ideal Calcium:Magnesium Ratio<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d6ada8 elementor-widget elementor-widget-text-editor\" data-id=\"6d6ada8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The relationship between calcium and magnesium is complex, interdependent, and not fully understood. Studies have shown that high intakes of calcium may interfere with magnesium status by reducing intestinal absorption and increasing urinary losses (21). Additionally, magnesium deficiency is known to induce calcium deficiency in experimental conditions (12). A ratio of 2:1 for calcium to magnesium has been recommended, despite a lack of research supporting this recommendation (21). Until more research is published on the ideal ratio of calcium to magnesium, the best approach is to meet minimum targets for magnesium, while ensuring a calcium intake at, but not above, the RDA.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48a0e72 elementor-widget elementor-widget-text-editor\" data-id=\"48a0e72\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>References<\/h2><ol><li>Linus Pauling Institute. Calcium. 2017. Available <a href=\"http:\/\/lpi.oregonstate.edu\/mic\/minerals\/calcium\">here<\/a>.<\/li><li>Harvard Health Publishing. How much calcium do you really need? 2017. Available <a href=\"https:\/\/www.health.harvard.edu\/staying-healthy\/how-much-calcium-do-you-really-need\">here<\/a>.<\/li><li>Food and Agriculture Organization of the United Nations (FAO). Chapter 11: Calcium. 2001. Available <a href=\"http:\/\/www.fao.org\/docrep\/004\/y2809e\/y2809e0h.htm#bm17.5\">here<\/a>.<\/li><li>Institute of Medicine. Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. Washington D.C.: The National Academies Press; 2006 (updated 2011). Overview of Calcium; p 35-74.<\/li><li>Aune D, Navarro Rosenblatt DA, Chan DS, Vieira AR, Vieira R, Greenwood DC, et al. Dairy products calcium, and prostate cancer risk: a systematic review and meta-analysis of cohort studies. Am J Clin Nutr, 2015 Jan;101(1):87-117. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25527754\">here<\/a>.<\/li><li>Murphy N, Norat T, Ferrari P, et al. Consumption of dairy products and colorectal cancer in the European Prospective Investigation into Cancer and Nutrition (EPIC). PLoS One. 2013;8(9):e72715. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/24023767\">here<\/a>.<\/li><li>Massa J, Cho E, Orav EJ, Willett WC, Wu K, Giovannucci EL. Total calcium intake and colorectal adenoma in young women. Cancer Causes Control. 2014;25(4):451-460. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/24562904\">here<\/a>.<\/li><li>Bonovas S, Fiorino G, Lytras T, Malesci A, Danese S. Calcium supplementation for the prevention of colorectal adenomas: A systematic review and meta-analysis of randomized controlled trials. World J Gastroenterol. 2016;22(18):4594-4603. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27182169\">here<\/a>.<\/li><li>Bristow SM, Bolland MJ, MacLennan GS, et al. Calcium supplements and cancer risk: a meta-analysis of randomised controlled trials. Br J Nutr. 2013;110(8):1384-1393. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23601861\">here<\/a>.<\/li><li>Bolland MJ, Grey A, Gamble GD, Reid IR. Calcium and vitamin D supplements and health outcomes: a reanalysis of the Women&#8217;s Health Initiative (WHI) limited-access data set. Am J Clin Nutr. 2011;94(4):1144-1149. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/21880848\">here<\/a>.<\/li><li>Chung M, Tang AM, Fu Z, Wang DD, Newberry SJ. Calcium intake and cardiovascular disease risk: an updated systematic review and meta-analysis. Ann Intern Med. 2016 Dec; 165(12):856-866. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27776363\">here<\/a>.<\/li><li>Linus Pauling Institute. Magnesium. 2014. Available <a href=\"http:\/\/lpi.oregonstate.edu\/mic\/minerals\/magnesium\">here<\/a>.<\/li><li>Navarro-Gonzalez JF, Mora-Fernandez C, Garcia-Perez J. Clinical implications of disordered magnesium homeostasis in chronic renal failure and dialysis. Semin Dial. 2009;22(1):37-44. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/19250445\">here<\/a>.<\/li><li>Institute of Medicine. Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. Washington D.C.: The National Academies Press; 2006. Magnesium; p 340-349.<\/li><li>Kass L, Weekes J, Carpenter L. Effect of magnesium supplementation on blood pressure: a meta-analysis. Eur J Clin Nutr. 2012;66(4):411-418. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/22318649\">here<\/a>.<\/li><li>Saneei P, Salehi-Abargouei A, Exmaillzadeh A, Azadbakht L. Influence of Dietary Approaches to Stop Hypertension (DASH) diet on blood pressure: a systematic review and meta-analysis on randomized controlled trials. Nutr Metab Cardiovasc Dis. 2014 Dec;24(12):1253-61. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25149893\">here<\/a>.<\/li><li>Schulze MB, Schulz M, Heidemann C, Schienkiewitz A, Hoffmann K, Boeing H. Fiber and magnesium intake and incidence of type 2 diabetes: a prospective study and meta-analysis. Arch Intern Med. 2007;167(9):956-965. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/17502538\">here<\/a>.<\/li><li>Larsson SC, Wolk A. Magnesium intake and risk of type 2 diabetes: a meta-analysis. J Intern Med. 2007;262(2):208-214. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/17645588\">here<\/a>.<\/li><li>Dong JY, Xun P, He K, Qin LQ. Magnesium intake and risk of type 2 diabetes: meta-analysis of prospective cohort studies. Diabetes Care. 2011;34(9):2116-2122. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/21868780\">here<\/a>.<\/li><li>Qu X, Jin F, Hao Y, et al. Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies. PLoS One. 2013;8(3):e57720. Abstract available <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23520480\">here<\/a>.<\/li><li>Rosanoff A, Dai Q, Shapses SA. Essential nutrient interactions: Does low or suboptimal magnesium status interact with vitamin D and\/or calcium status? Adv Nutr. 2016 Jan;7(1):25-43. Abstract available <a href=\"http:\/\/advances.nutrition.org\/content\/7\/1\/25.full.pdf\">here.<\/a><\/li><\/ol><p>Rosanoff A. The 2-to-1 Calcium-to-Magnesium Ratio. (n.d.). PDF. Available <a href=\"http:\/\/www.nutritionalmagnesium.org\/images\/stories\/pdf\/MaxRecomended-Calcium-Magnesium-Ratio-is2to1.pdf\">here<\/a>.<\/p><p><a href=\"#_ednref1\" name=\"_edn1\">[i]<\/a> Population reference is the EAR or Estimated Average Requirement<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>guest post by susan macfarlane, registered dietitian nutritionist What Is Calcium? Calcium is an essential mineral well known for its role in bone health. About 99% of our body\u2019s calcium is found in the bones and teeth where it maintains the structure of the skeletal system (1). The body\u2019s remaining calcium is found in soft [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":54794,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[7],"tags":[],"class_list":["post-37608","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nutrition"],"_links":{"self":[{"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/posts\/37608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/comments?post=37608"}],"version-history":[{"count":0,"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/posts\/37608\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/media\/54794"}],"wp:attachment":[{"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/media?parent=37608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/categories?post=37608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cronometer.com\/blog\/wp-json\/wp\/v2\/tags?post=37608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}