Carnitine is a naturally occurring molecule in the human body and in foods of animal origin.
Skeletal muscle is a highly plastic tissue that can shift from moments of (relative) inactivity to moments in which its energy consumption increases dramatically.
Vitamin D (calciferol) is a fundamental micronutrient for our health. Specifically, vitamin D refers to a group of liposoluble pro-hormones consisting of five different molecules, of which the most important for our body are vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol).
Whey is the liquid part that remains from the process of making cheese after the casein has been extracted.