Biotin (Vitamin B7): Biotin, also known as Vitamin B7, is a water-soluble B-vitamin that plays a crucial role in energy metabolism. It aids in the breakdown of carbohydrates, fats, and proteins, converting them into usable energy for the body. Biotin supports healthy metabolic function and is also known for its positive effects on hair, skin, and nails. For individuals on a weight loss journey, maintaining optimal biotin levels helps ensure energy efficiency and nutrient utilization.