Phytates in the diet bind to magnesium and impair its absorption. However the quantities present in normal diet do not affect magnesium absorption. Other dietary factors that are thought to affect magnesium absorption are oxalate, phosphate, proteins, potassium and zinc.
Excessive Protein
Dietary intake of protein can deplete the magnesium that you get from food. High-protein diets contribute to increased urinary loss of magnesium. That's why meat and protein shakes can be considered foods that deplete magnesium.
Mg is essential in the metabolism of vitamin D, and taking large doses of vitamin D can induce severe depletion of Mg. Adequate magnesium supplementation should be considered as an important aspect of vitamin D therapy.
Celiac disease, Crohn's disease, and chronic diarrhea can impair the absorption of magnesium or result in increased magnesium loss.
If there is any underlying gut bacteria imbalance or other nutrient deficiencies and these are fixed, magnesium levels should start to improve within 2-4 weeks. However, everyone is different and deficiencies can take a few months for certain individuals.
Chronic magnesium deficiency is often associated with normal serum magnesium despite deficiency in cells and in bone; the response to oral supplementation is slow and may take up to 40 weeks to reach a steady state.
Inflammation uses up or depletes magnesium levels. Even low-grade inflammation is associated with higher magnesium requirements. The body requires magnesium to downgrade inflammation, and more inflammation may increase magnesium needs.
Fruit juices such as orange juice, cherry juice, and watermelon juice are all good sources of magnesium, potassium, and phosphorus. According to the FNDDS, the average school container (124 grams) of 100% orange juice provides : 13.6 mg of magnesium.
Hypokalemia and Hyperkalemia
Magnesium depletion typically occurs after diuretic use, sustained alcohol consumption, or diabetic ketoacidosis.
Magnesium assists your body in regulating zinc levels, but high intakes of zinc can be detrimental to magnesium absorption – only abnormally high doses (around 142 mg of zinc per day) will reduce magnesium absorption.
Severe symptoms of hypomagnesemia (low magnesium level) include irregular heart rhythms, lethargy, confusion and tetany (knifelike muscle spasms). Borderline low magnesium levels are associated with symptoms like leg cramps, depression, weakness, insomnia and palpitations. What causes hypomagnesemia?
If you drink caffeinated beverages such as coffee, tea and soda regularly, your risk for magnesium deficiency is increased.
Chronic magnesium deficiency is often associated with normal serum magnesium despite deficiency in cells and in bone; the response to oral supplementation is slow and may take up to 40 weeks to reach a steady state.
While coffee does not directly affect magnesium levels already present in your body, it does, however, affect your body's absorption of magnesium. Some signs of a magnesium deficiency include agitation, anxiety, rapid breathing, muscle tremors or spasms, and irregular heart rhythm.
Your stomach and intestines can more easily absorb the citric acid and the magnesium along with it. Most magnesium supplements with citric acid, therefore, are taken orally to replenish low magnesium levels.
Fruit juices such as orange juice, cherry juice, and watermelon juice are all good sources of magnesium, potassium, and phosphorus. According to the FNDDS, the average school container (124 grams) of 100% orange juice provides : 13.6 mg of magnesium.
Fruits high in magnesium include dried figs, avocados, guavas, bananas, kiwi fruit, papayas, blackberries, raspberries, cantaloupes, and grapefruit. The daily value (DV) for magnesium 420mg per day.
Physical exercise may deplete magnesium, which, together with a marginal dietary magnesium intake, may impair energy metabolism efficiency and the capacity for physical work.