D-pantethine is widely used in dietary supplements due to its role in supporting metabolic health. It serves as a precursor to coenzyme A, which is essential for energy production and the metabolism of fats, carbohydrates, and proteins. It is commonly included in formulations aimed at maintaining healthy cholesterol levels and supporting cardiovascular function. Additionally, D-pantethine supports skin health and is sometimes used in products targeting improved wound healing and skin regeneration. Its involvement in cellular energy pathways also makes it relevant in supplements designed to reduce fatigue and enhance physical endurance.