LESSON 2 · What Your Body Actually Needs
The Invisible Workforce
While macronutrients get all the attention, micronutrients quietly keep you alive.

There are 13 essential vitamins and at least 16 essential minerals. Essential means your body cannot make them — you must get them from food or supplements. A deficiency in just one can cascade into symptoms that seem unrelated: fatigue, poor mood, weak immunity, or slow healing.