Nick's diet consists mainly of fish. Which of the following is the major food nutrient in his diet? A. carbohydrates B. vitamins C. water D. proteins E. fats

its mostly C

Explanation:

Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.