Fat-soluble vitamins are a group of vitamins that reside in the body’s fatty tissue and liver and are potentially dangerous when consumed in excess, notes WebMD. Fat-soluble vitamins are usually absorbed in chylomicrons (fat globules) that move via the lymphatic system into the general blood circulation.
Fat-soluble vitamins are vitamins K, E, D and A. These vitamins are found mainly in fatty foods, such as dairy foods, oily fish, vegetable oils and animal fats, notes MedicineNet. Although diseases caused by lack of fat-soluble vitamins are rare, symptoms of mild deficiency may develop if there are no adequate amounts of vitamins in the diet.