Which vitamins are associated with metabolizing fat?

The main vitamins associated with metabolizing fat are vitamin B₂, niacin, and pantothenic acid. These vitamins are coenzymes of the enzymes necessary for metabolizing fats, so when there is a lack of them, metabolism may be impaired. A lack of vitamin B₂ in particular halts the metabolism of fatty acids and their use as energy. While there are many vitamins associated with the metabolism of fatty acids, this is the reason only vitamin B₂ is called the “fat metabolism vitamin.” The above vitamins, as well as vitamin B₁, are also involved in the breakdown of carbohydrates.