Magnesium Supplements: How Much is Too Much?
Magnesium supplements are available in both prescription and non-prescription doses, and in a range of dosage forms. Powders, extended-release tablets, liquid-filled capsules, syrups and gels are just a few of the ways to add supplemental magnesium to your diet. In extreme cases, an IV drip may be used to return magnesium to proper levels. The best way to maintain recommended magnesium levels in the body is to follow a diet program that includes magnesium-rich foods such as nuts and leafy greens. Typically, most healthy adults don’t need magnesium supplements. However, certain conditions may require magnesium supplements to re-balance the body’s levels.
According to the Institute of Medicine of the National Academy of Sciences, the tolerable upper intake level (UL) for supplementary magnesium for adolescents and adults is 350mg per day. There is no general upper level established for magnesium intake, only for supplements. As magnesium supplement intake surpasses the upper intake level, the risk of adverse effects is increased. Symptoms of an overdose of magnesium include slow heartbeat, extreme drowsiness, confusion, muscle weakness and more. (These are similar to symptoms of magnesium deficiency). In the event of an overdose, visit an emergency room or contact a local poison control hotline.
It is recommended that magnesium is taken under the supervision of a doctor, who will be aware of the side effects of having too much magnesium in the body and can identify any possible drug interference. Magnesium supplements can also aggravate or worsen existing conditions such as heart disease and kidney problems. In extreme cases, excessive magnesium leads to a condition called magnesium toxicity where kidney function is affected.
Learn more about Magnesium Supplements.
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