Supplementation refers to the practice of consuming additional nutrients or substances to enhance one's diet and overall health. This can include taking vitamins, minerals, herbal extracts, or other products in addition to what one gets from food. Supplementation is often used to address nutrient deficiencies, support specific health goals, or improve overall well-being. Research in the field of supplementation examines the effectiveness and safety of various nutrients and supplements, as well as their potential benefits and risks for different populations. This research helps to inform guidelines and recommendations for optimal supplementation practices.