Derived from Fish Liver Oil (cod, haddock and pollock), each liquid filled soft gelatin capsule provides 10,000 IU of naturally-occurring Vitamin A and 400 IU of naturally-occurring Vitamin D. Both of these fat-soluble nutrients are critical for proper development and health throughout life.Vitamin A can be obtained from two principle food groups. In the form of Retinol, it is found in food derived from animal sources such as fish. From plants, Vitamin A is in the form of Carotenes which includes beta-Carotene. This nutrient is recognized for its significant roles in the body including vision, growth, reproduction, the immune system, the development of primary body tissue, bones, blood cellular components and the brain.Vitamin D has been in the forefront of the medical world with all of the recent discoveries as to the significance of this essential nutrient for overall health and well being. Nicknamed the “Sunshine Vitamin”, Vitamin D is unique among all other vitamins because it is the only conditional one and must be synthesized in the skin from exposure to ultraviolet radiation from sunlight. Concerns over skin cancer caused by overexposure to sunlight have prompted many to use sufficient sun block or limit exposure to a degree that can create a deficiency of Vitamin D produced by the body. But, in fact, a lack of Vitamin D is now linked to various forms of cancer including malignant melanoma and colon cancer. Vitamin D deficiencies can also drastically weaken the immune system, bones and brain function. For these reasons many physicians are now recommending their patients take levels of Vitamin D far in excess of the recognized Daily Value.Available in two forms, Vitamin D-2 (ergocalciferol) and Vitamin D supplements are available in two forms, D-3 (cholecalciferol) which is the natural form and D-2, (ergocalciferol) which is produced by radiating fungus.