A tonic is a medicinal substance that is believed to restore health, vitality, and energy. Traditionally, tonics are used to improve overall well-being and can be made from various natural ingredients, including herbs, vitamins, and minerals. They are often taken to support the body's functions and enhance recovery from illness or fatigue. In modern medicine, tonics may be formulated as syrups, capsules, or liquids. Some common examples include ginseng, echinacea, and iron supplements. While tonics can provide benefits, it is essential to consult a healthcare professional before using them, especially for those with underlying health conditions.