Vitamin & Herb University
Vitamin Information Minerals Information Dietary Supplement Information Herb Information Drug Herb Interaction Continuing Education Pharmacy
Vitamin & Herb University

Log in

Forgot Your Password

Become a Member
Search Vitamin Herb University

view site map
 PDF Version



Folic Acid



Pantothenic Acid

Vitamin A

Vitamin B1

Vitamin B12

Vitamin B2

Vitamin B6

Vitamin C

Vitamin D

Vitamin E

Vitamin K

Vitamin Information

Vitamin Information and Dietary Supplement Reviews from Vitamin Herb University


Introduction to Vitamin Information

Vitamins work as regulators or modulators and insure biological reactions in the body function properly. Thus, vitamins are vital for growth, maintenance, immune function, and reproduction. Insuring adequate nutrient levels in the body will optimize energy and overall health.

Vitamins Must be Consumed

Although there is one exception, vitamin D which can be synthesized from sun exposure, our bodies cannot synthesize vitamins. Therefore, to maintain adequate levels, all vitamins must be consumed daily from foods and/or supplements.

Vitamins Are Divided into Two Groups

There are water-soluble vitamins and fat-soluble vitamins. Water-soluble vitamins are vitamins B1, B2, B6, B12, C, niacin, pantothenic acid, folic acid and biotin, while fat-soluble vitamins are vitamins A, D, E and K. Based on solubility, some vitamins are absorbed differently. For example, fat is required for vitamins A, D, E and K and is an intrinsic factor for vitamin B12. In addition, since some vitamins are labile during food processing and cooking, ways of consuming and timing must be considered for proper nutrition.

Vitamins Are Not Broken Down by the Body

Unlike proteins, carbohydrates or fats, vitamins are not metabolized to build tissues or organs. On the contrary, vitamins act as coenzymes for enzymes so that nutrients such as amino acids and glucose are enzymatically utilized for muscle growth or energy.

Vitamin Dosages

Recently, new dietary guidelines (the Dietary Reference Intakes) have been set by the National Academy of Sciences. In this vitamin section, new recommendations, as well as the functions of vitamins, will be described. In addition, a portion of text will describe how lifestyle and medication affect individual nutritional status.

Dosage Chart
Practical, easy-to-use dosage charts provide information on upper limits, recommended doses and health benefits for each vitamin.
View chart now >>