Supplements are used to fill nutritional gaps, support specific health goals, enhance performance, and compensate for deficiencies that may be challenging to meet through diet alone. They can provide concentrated doses of vitamins, minerals, and other nutrients that contribute to overall well-being and support optimal body function. For athletes and those with specialized dietary needs, supplements can also aid in achieving specific fitness or health goals more effectively. However, it's important to use supplements as part of a balanced diet and lifestyle, and under the guidance of a healthcare professional when necessary.