Taking magnesium supplements on an empty stomach can increase your risk of diarrhea, cramping, and nausea. Taking them with food helps mitigate these digestive issues.
If your magnesium is low, you will most commonly crave chocolate or sweet foods in general. Because cocoa is an excellent natural source of magnesium, the body often subconsciously drives you toward chocolate to help replenish the missing mineral.
The kidneys are the most affected organ system by magnesium because they strictly regulate its levels in your bloodstream. They act as the body’s filtration system, determining whether to excrete excess magnesium in the urine or retain it when levels are low
Aside from the kidneys, magnesium deeply impacts muscles and the heart. It regulates the electrical activity and contractions in these tissues, which is why a deficiency frequently causes muscle twitches, cramps, and abnormal heart rhythms.
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What to Limit: Be mindful of foods and drinks high in phytic acid (like unsoaked grains), calcium, caffeine, and alcohol, as they can inhibit or reduce how much magnesium your body absorbs.
Foods and drinks that block magnesium absorption primarily do so by binding to the mineral in the gut or forcing the kidneys to excrete it. Key culprits include high-oxalate greens (e.g., spinach, beet greens, almonds), phytic acid in beans and whole grains, high-calcium meals, colas with phosphoric acid, caffeine, and alcohol. Taking high doses of calcium alongside magnesium can sharply decrease magnesium absorption. Phosphoric acid, a common additive in sodas, interferes with magnesium retention and triggers the kidneys to excrete more of the mineral. Coffee, tea, and energy drinks act as mild diuretics, prompting your body to flush out more magnesium via urine.
Magnesium is primarily depleted by medications (like proton pump inhibitors and diuretics) and lifestyle factors like chronic alcohol use and unmanaged stress. Ultra-processed foods, high sugar intake, and gastrointestinal issues also severely limit your body’s ability to absorb and retain adequate magnesium. Phytates (Phytic Acid): Found in the hulls of seeds, bran, and some raw beans, phytates bind with magnesium to form insoluble compounds that pass through the digestive tract
Gastrointestinal Disorders: Conditions like Crohn’s disease, celiac disease, or chronic diarrhea severely impair your gut’s ability to absorb magnesium.
Type 2 Diabetes: Uncontrolled diabetes leads to frequent urination, which flushes excess magnesium out of the body.










