A capsule is a small container designed to hold substances, often used in medicine to deliver medication. Capsules can be made from gelatin or other materials and are typically filled with powder, liquid, or granules. They are easy to swallow and can mask the taste of the contents, making them a popular choice for both prescription and over-the-counter drugs. In addition to pharmaceuticals, capsules are also used in the food industry, such as for dietary supplements and vitamins. The design of a capsule allows for controlled release of its contents, which can enhance the effectiveness of the active ingredients, such as vitamins or herbal extracts.