Protein is a macronutrient that is essential to building muscle mass.

Is a fat-soluble vitamin, meaning that it dissolves in fats and oils and can be stored in your body for a long time.

also known as ascorbic acid, is a water-soluble nutrient found in some foods. In the body, it acts as an antioxidant, helping to protect cells from the damage caused by free radicals.

It is found in many foods including vegetable oils, cereals, meat, poultry, eggs, fruits, vegetables, and wheat germ oil. It is also available as a supplement.

Low-carbohydrate diets restrict carbohydrate consumption relative to the average diet.

A type of diet limits carbohydrates — such as those found in grains, starchy vegetables and fruit — and emphasizes foods high in protein and fat.

Is an umbrella term for various meal timing schedules that cycle between voluntary fasting and non-fasting over a given period.

Is a mixture of proteins isolated from whey, the liquid material created as a by-product of cheese production.