Dietary supplements exhibit healing approaches; often include medicinal herbs and nutraceuticals (products from food sources with health benefits); contain vitamins, amino acids, minerals, and herbs (plant products); and are intended to supplement the regular diet. Most dietary supplements used in alternative medicine systems are derived from plants, and some are obtained from animals. Dietary supplements are considered to improve overall health and help meet daily requirements for essential nutrients. Generally, most people can obtain the nutrients. They need a balanced diet. However, supplements are required in certain conditions to balance a healthy diet, such as in diseased conditions (e.g., cancer, diabetes, or chronic diarrhea), which trigger nutritional deficiency. Hence, using dietary supplements as per the body’s requirements and in their appropriate quantity is always recommended. This chapter highlights plant-based dietary supplements that provide nutritional value for the well-being of humans.