About Vitamins PART I

The human body needs several substances in small quantities for normal health and growth. Some of these substances include proteins, carbohydrates, lipids and vitamins. Interestingly, out of all of these substances, vitamins generally cannot be synthesized in amounts sufficient enough and thus they have to be obtained from diet. Some examples of vitamins include Vitamin D, Vitamin C, niacin, and folic acid. Let's learn more about these important essential nutrients.

One of the main roles of vitamins is to regulate the reactions that occur in metabolism, that is, the sum of all of the life sustaining chemical reactions inside of the cells of living organisms. In turn, these reactions are what allow the organisms to grow, reproduce, and maintain structures.

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When there is an absence of a vitamin this may disrupt the balance within a cell and even an entire organism. For instance, since the moment of conception, a fetus develops from the nutrients it absorbs. Vitamins then start to play an important part, helping regulate the chemical reactions needed for growth. By regulating these chemical reactions, it is then possible for the fetus to produce skin, muscle, and bone. Thus, the importance of receiving all the necessary vitamins is crucial for organisms.

When an individual has a vitamin deficiency, it may be categorized in one of two main categories. The first category is primary deficiency. This type of deficiency occurs when the dietary intake is lower than the normal requirement of the vitamin. Furthermore, a secondary deficiency occurs when even though the dietary intake is in the right amounts, there is a pre-existing condition that doesn't facilitate the absorption of the essential nutrients.