Food and water.
-protein
-carbohydrates
-fat
As long as calories consumed and expended are not the same, diet or activity level should be adjusted for the good of the body's health.
Cancer because of the constant use of them and the niccotine inside as well as the numerous types of poisons inside the ciggerette and the smoke.
Answer and Explanation:
Macros are macronutrients. Your body needs these nutrients in larger amounts in order to function properly as macro means large. In addition, all of these nutrients provide your body with energy measured in the form of calories or kcals. There are three types of macronutrients: carbohydrates, proteins, and fats. But in this case the answer is protein.