మనిషికి మొత్తం ఎన్ని మినరల్ అవసరం ఉంటుంది?
At least twenty chemical elements are known to be "required" to support human biochemical processes by serving structural and functional roles as well as electrolytes. However, as many as twenty-nine elements in total (including hydrogen, carbon, nitrogen and oxygen) are suggested to be used by mammals, as inferred by biochemical and uptake studies. Calcium makes up 920 to 1200 grams of adult body weight, with 99% of it contained in bones and teeth. Phosphorus makes up about 1% of a person's body weight. The other major minerals (potassium, sodium, chlorine, sulfur and magnesium) make up only about 0.85% of the weight of the body. Together these eleven chemical elements (H, C, N, O, Ca, P, K, Na, Cl, S, Mg) make up 99.85% of the body. There is not scientific consensus on whether chromium is an essential trace element. The United States and Japan designate chromium as an essential nutrient, but the European Food Safety Authority (EFSA), representing the European Union, reviewed the question in 2014 and does not agree. 
twenty