A vitamin may be broadly defined as a substance that is essential for the maintenance of normal metabolic function that is not produced in the body and, therefore, must be consumed from a source outside the body. Reduction of vitamin levels over extended periods can result in vitamin deficiency. These shortages may lead to symptoms, which can include loss of appetite, loss of body weight, increased irritability and sleeplessness or constant drowsiness. Deficiencies of this nature can be easily avoided by adequate vitamin intake.

As important as vitamins are, they are useless without minerals. Minerals play a vital role in nutrition. Although there is rarely much discussion about the benefits they provide, minerals are considered the "unsung" heroes of nutrition. Virtually no nutritional benefit from the various vitamins would be possible without the assistance of one or more key minerals. Minerals play a number of roles in the body. It is their non-organic components that initiate the metabolism of protein, carbohydrates and lipids. In addition to their assistance in the metabolic process, minerals aid the regulation of water and electrolyte balance.

Everyone over the age of 18 would find it beneficial to enhance their diet with Isotonix Multivitamin. It provides you with the vitamins and minerals you need in your everyday life. Many people underestimate the significance of taking a daily multivitamin, which provides a diverse variety of health benefits for your entire body. Even with a balanced diet, it is difficult to consume the optimal amounts of vitamins and minerals each day. One should supplement with a multivitamin to assure that daily nutrient intake is balanced and powerful enough to ward against any deficiencies, allowing for the best health possible.

The vitamin E in the Isotonix Multivitamin and the antioxidant formulas is the natural, high activity d1-alpha-tocopherol. It has been converted to the acetate form to aid water solubility. This natural form of vitamin E is superior in terms of absorption and retention in the body. The natural form of alpha-tocopherol is known as "d-alpha tocopherol," whereas the synthetic form is called "dl-alpha tocopherol." The synthetic "dl-" form is the most common form found in dietary supplements, although many manufacturers, including Market Australia, have switched over to the more potent (and expensive) natural "d-" form.

Vitamin D3 has been added to Isotonix Multivitamin to facilitate the uptake of calcium. There are groups of people who are not out in the sun for significant lengths of time. Certain racial groups have significant problems in the higher latitudes, especially during the winter, in producing substantial amounts of vitamin D3 and subsequently taking up enough calcium.