Upper level for magnesium
The Upper Level of 350 mg per day for magnesium refers to supplement and other nonfood sources only such as certain and laxative . Intakes exceeding this amount from nonfood sources can lead to diarrhea. Toxicity also can occur during kidney failure because this kidneys are the primary regulator of blood magnesium. High amount of magnesium in the blood cause weakness, nausea, slowed breathing , eventual malaise, coma, and death. Older people are at particular risk of magnesium toxicity because kidney function tends to decline with age.