Calcium, a mineral vital to the human body, Calcium is necessary for many bodily functions, such as muscle contraction, and proper heart function.

Calcium Pyruvate, an ingredient thought to increase the amount of energy used by the body to help increase fat and protein metabolism and glycogen storage. Calcium Pyruvate is also used to increase endurance for workouts.

Cellulose is the structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. Cellulose is not digestible by humans and is often referred to as 'dietary fiber' or 'roughage', acting as a hydrophilic bulking agent for feces.

Magnesium Stearate is coommonly used as a filling agent in the manufacture of capsules and tablets, such as vitamins, the source of this ingredient is typically bovine. However, there is an increasing number of vegetarian options in which the product specifically indicates it contains magnesium stearate from vegetable sources.