Which statement about niacin is true?

Question

Quizplus · Accepted Answer

Niacin, also known as vitamin B3, is important in the production of energy from dietary nutrients. It plays a key role in the metabolism of carbohydrates, fats, and proteins. It is also involved in the synthesis of cholesterol, fatty acids, and steroid hormones. Niacin deficiency can lead to a condition called pellagra, which can cause adverse effects in multiple areas of the body, including the skin, gastrointestinal tract, and nervous system. While there is no recommended dietary allowance (RDA) for niacin, there is a tolerable upper intake level (UL) established to prevent adverse effects from excessive intake. Niacin is not needed to synthesize tryptophan, but tryptophan serves as a precursor for niacin synthesis.

Which Statement About Niacin Is True