Potassium, the most abundant intracellular electrolyte found in the body. Vitamin A, a fat-soluble vitamin present in animal-derived products including eggs, whole milk, butter, fortified margarine, meat, and oily saltwater fish. Vitamin C, an essential water-soluble vitamin found in various fruits and vegetables, particularly citrus fruits such as oranges. Calcium, an essential nutrient found in several foods including dairy products, some vegetables, and many fortified food items. Iron, a trace mineral found in the body, most found in the hemoglobin of red blood cells and in the myoglobin of muscle cells. Vitamin D, a necessary fat-soluble vitamin produced in response to sun exposure. Vitamin E, an essential fat-soluble vitamin that occurs naturally in many foods including vegetable oils, wheat germ oil, cereal grains, animal fats, meat, poultry, eggs, fruits, and vegetables. Vitamin B1 (Thiamine), an essential B-complex vitamin. Vitamin B2 (Riboflavin), a water-soluble B vitamin found in many foods including milk, meat, eggs, nuts, enriched flour, and green vegetables. Vitamin B3 (Niacinamide), a form of vitamin B3 commonly found in tuna fish. Vitamin B5 (Pantothenic Acid), an essential B vitamin, rich sources include mushrooms, meat, vegetables, cereal grains, legumes, eggs, and milk. Vitamin B6 (Pyridoxine), a member of the vitamin B family, present in many foods including cereal grains, legumes, vegetables, liver, meat, and eggs. Vitamin B7 (Biotin), an essential B vitamin also known as vitamin B7 in the US and vitamin B8 in some European nations.Vitamin B9 (Folic Acid), a B vitamin that occurs naturally in asparagus, mushrooms, yeast, legumes, leafy vegetables such as spinach, broccoli, and lettuce, fruits such as bananas, melons, oranges, tomatoes, and lemons, and animal protein such as beef liver and kidney. Vitamin B12 (Cyanocobalamin), an essential B vitamin that is commonly found in a variety of foods, such as fish, shellsh, meat, eggs, and dairy products. Phosphorus, an essential mineral found in animal foods high in protein such as meat, fish, eggs, and dairy products. Magnesium, a chemical element that plays an important role in daily functions. Zinc, a mineral that is an essential nutrient. Selenium, an essential trace mineral found in soil, water, and some foods such as yeast. Manganese, an essential nutrient found in foods including mussels, nuts, legumes, seeds, tea, whole grains, and leafy green vegetables. Molybdenum, an essential trace element found in some beans. Ginkgo Biloba, a tree native to temperate Asia, including China, Japan, and Korea, but is now cultivated in Europe and the United States. Panax (“Asian”) Ginseng, a perennial herb with a long history of traditional medicinal use, Asian counterpart to American ginseng, found in China, Korea, and Siberia.