Vitamins stimulate the immune system and increase resistance to infections. They are vital to the structural integrity of skin, bones and teeth. They improve the utilization of food for conversion into energy.

VITAMIN C

Vitamin c or (a.k.a. Ascorbic Acid, Ascorbate) is important in the maintenance of collagen, the protein which holds most of the soft tissues of the body together. Along with B6, it is also vital to the utilization of amino acids. It enhances the absorption of iron from vegetable sources. It inhibits the synthesis of nitrosamines, compounds implicated in cancer. Fruit sources are citrus fruits, fresh strawberries, cantaloupe, pineapples and guava. Vegetable sources are broccoli, Brussel sprouts, tomatoes, spinach, kale, green peppers, cabbage and turnips.
Regular intake of vitamin C insures health of the soft tissues of the body and perhaps an ounce of cancer protection. There is ample research Evidence that substantial doses of vitamin C, taken regularly over the course of years, prolong a person's life expectancy by lowering the probability of vascular disease.

VITAMIN B12

Vitamin B12's primary functions are in the formation of red blood cells and the maintenance of a healthy nervous system. B12 is necessary for the rapid synthesis of DNA during cell division. This is especially important in tissues where cells are dividing rapidly, particularly the bone marrow tissues responsible for red blood cell formation.
If B12 deficiency occurs, DNA production is disrupted and abnormal cells called megaloblasts occur. This results in anemia. Symptoms include excessive tiredness, breathlessness, listlessness, pallor, and poor resistance to infection. Other symptoms can include a smooth, sore tongue and menstrual disorders. Anemia may also be due to folic acid deficiency, folic acid also being necessary for DNA synthesis. B12 is also important in maintaining the nervous system.

VITAMIN B6

It performs a wide variety of functions in your body and is essential for your good health. For example, vitamin B6 is needed for more than 100 enzymes involved in protein metabolism. It is also essential for red blood cell metabolism. The nervous and immune systems need vitamin B6 to function efficiently, and it is also needed for the conversion of tryptophan (an amino acid) to niacin (a vitamin).
Hemoglobin within red blood cells carries oxygen to tissues. The body needs vitamin B6 to make hemoglobin. Vitamin B6 also helps increase the amount of oxygen carried by hemoglobin. A vitamin B6 deficiency can result in a form of anemia that is similar to iron deficiency anemia.

VITAMIN B2

It is required by the body to use oxygen and the metabolism of amino acids, fatty acids, and carbohydrates. Riboflavin is further needed to activate vitamin B6 (pyridoxine), helps to create niacin and assists the adrenal gland. It may be used for red blood cell formation, antibody production, cell respiration, and growth.

VITAMIN B3

Vitamin B3, or niacin, works with other b-complex vitamins to metabolize food and provide energy for the body. Niacin is very effective at correcting high cholesterol and preventing or reversing heart disease.