Are essential for maintaining or recovering good health. They regulate metabolism and participate in the processes that release energy with digestion. Vitamins also work together with the enzymes to ensure the proper functioning of the body’s activities. The need for vitamins in the organism is relatively small compared with other nutrients such as proteins and carbohydrates. Some vitamins are water-soluble and should be taken daily because they keep not stored for long in the body, such as B vitamins and vitamin C. Other are fat-soluble and can stay longer stored in the fatty tissue of the body and liver, such as vitamins A, D, E and K.