Tonics are substances that are believed to promote health and well-being. They can come in various forms, including liquids, powders, or herbal preparations. Traditionally, tonics are used to boost energy, improve digestion, or enhance overall vitality. Many cultures have their own versions of tonics, often made from natural ingredients like herbs, roots, or fruits. In modern times, tonics can also refer to beverages that contain added vitamins, minerals, or other beneficial compounds. For example, tonic water is a carbonated drink that includes quinine, which was historically used to prevent malaria. Today, tonics are popular for their refreshing taste and potential health benefits.