Helps maintain normal fluid balance inside and outside cells. Helps in nerve transmission and control of muscle contraction. Muscle cramps, mental disinterest, loss of appetite. 15 mg-males Meat, oysters, shellfish, herring, liver, eggs, legumes, milk, wheat bran. Slowed growth, delayed sexual maturation, decreased ability of taste, loss of appetite, slow wound healing, lowered immunity, skin changes, anemia, night blindness.
Excessive intake can lead to stomach and intestinal irritation and vomiting.
Symptoms related to moderate overconsumption are less easily detected such as impaired copper status. Recommended Dietary Allowances. Krause's Food, Nutrition and Diet Therapy. W.B. Saunders Company. The best way to meet your mineral needs is through a well-balanced diet.