An amazing mineral for masculine health, zinc is used to make testosterone, and also signals for the synthesis of testosterone. Many men don’t get enough. And if you get way too little zinc, you might end up developing man-boobs while experiencing ball shrinkage … making it easy to see why this is so important for test. Read some reviews and you’ll see me freaking out over how awesome zinc is for virility and testosterone. Look for a good form though, like Zinc Gluconate or Zinc Citrate — cheap forms of Zinc are not only less absorbable (and less effective), they tend to have more of its notorious side effects, like stomach upset or tasting metal in your mouth. Verdict: very positive.
The main symptoms of vitamin D overdose which are those of hypercalcemia including anorexia , nausea, and vomiting. These may be followed by polyuria , polydipsia , weakness, insomnia, nervousness, pruritus and ultimately renal failure . Furthermore, proteinuria , urinary casts , azotemia , and metastatic calcification (especially in the kidneys) may develop.  Other symptoms of vitamin D toxicity include mental retardation in young children, abnormal bone growth and formation, diarrhea, irritability, weight loss, and severe depression.