Question

Which of the following is NOT a major mineral?

Multiple Choice

Magnesium


Sulfur


Calcium


Iron

Answer 1

All of the options listed (Magnesium, Sulfur, Calcium, Iron) are considered major minerals. However, if you are asked which is NOT classified as a major mineral, the answer would depend on specific classification criteria, but typically, iron is often categorized as a trace mineral. Therefore, in some contexts, the answer could be:

**Iron**

However, please note that in many nutritional contexts, iron is still considered an essential mineral, but may not be classified as a major mineral like calcium or magnesium.