What is the riboflavin and niacin?

Riboflavin (vitamin B2) and niacin (vitamin B3) are both water-soluble B vitamins essential for human health. Riboflavin plays a crucial role in energy production, antioxidant activity, and the metabolism of fats, carbohydrates, and proteins. Niacin is important for cellular metabolism, DNA repair, and the production of hormones in the adrenal glands. Both vitamins are found in various foods, with riboflavin in dairy products and leafy greens, and niacin in meat, fish, and whole grains.