Deism is the belief in a creator, who made the world but does not take a personal interest in it -- doesn't require worship, answer prayers, judge behavior, or necessarily promise a life after death (unless that was part of the original creation).
Herbal supplements are a type of dietary supplement that contain herbs, either singly or in mixtures. An herb (also called a botanical) is a plant or plant part used for its scent, flavor, and/or therapeutic properties.
Herbal medicine, or phytotherapy, includes not just the use of plant products, but may also include the use of animal and mineral products. It is among the most commercially successful branches of alternative medicine, and includes the tablets, powders and elixirs that are sold as nutritional supplements.