Nutrients............

Organic micronutrients are classified as vitamins, and inorganic micronutrients are classified as minerals. Over-nutrition of macronutrients is a major cause of obesity and increases the risk of developing various non-communicable diseases (NCDs), including type 2 diabetes, stroke, hypertension, coronary heart disease, osteoporosis, and some forms of cancer.Nutrients can also be classified as essential or nonessential, with essential meaning the body cannot synthesize the nutrient on its own.

Nutrients are absorbed by the cells and used in metabolic biochemical reactions. These include fueling reactions that create precursor metabolites and energy, biosynthetic reactions that convert precursor metabolites into building block molecules, polymerizations that combine these molecules into macromolecule polymers, and assembly reactions that use these polymers to construct cellular structures.