Most people do not even realize that vitamins are different, but they are. Besides the obvious letter difference, vitamins can be classified as either Fat Soluble or Water Soluble. Whether the vitamin is fat soluble or water soluble has to do with the way the body processes it. Should this difference matter to you? Well, yes and no.

At a basic level, whether or not a vitamin is fat soluble or water soluble doesn't really matter. What is most important is ensuring your body gets the recommended daily allowances of each. Regardless of whether you're getting your vitamins via your diet or by supplementation, avoiding a vitamin deficiency is what will keep the body in good health.

When looked at from a chemical aspect, the differences between a vitamin that is fat soluble or water soluble are fairly complicated. Most people don't care to understand all that is involved 'behind the scenes'.

What's important is that the body is able to store fat soluble vitamins but not water soluble vitamins. The fat soluble vitamins, including vitamins A, D, E and K, are absorbed through the large intestines. For this absorption process to work properly dietary fat must also be present. If fat is not eaten along with the fat soluble vitamins, it will be more difficult for the body to complete the absorption process. Once they are finally absorbed however, fat soluble vitamins are stored in the liver. There they wait until they are called on to do their jobs.

Let's take a closer look at the fat soluble vitamins. Vitamin K helps the body metabolize food into energy. It's responsible for protecting the blood's clotting ability by supplying the seven blood clotting proteins involved in the process. It's also necessary for normal bone growth.

Vitamin E is an important antioxidant. It protects Vitamins A and C and it plays a crucial role in protecting fatty acids and red blood cells from being destroyed.

Without Vitamin D, the body could not efficiently absorb calcium. Vitamin D helps regulate the amount of calcium and phosphorous in the blood. Storing Vitamin D helps ensure that even if a person doesn't drink enough milk, bones won't suffer. 

Vitamin A is the vision vitamin. It helps eyes focus in dim light and helps differentiate colors. It also plays a vital role in tissue growth and differentiation. It boosts the immune system's ability to fight infection. A special protein called a transport protein helps the Vitamin A that is stored in the liver travel to the tissues where it is needed.

Water soluble vitamins, on the other hand, are not stored in the body. Because the body isn't able to store these vitamins these vitamins must be constantly resupplied. As water soluble vitamins enter the body, they are put to work. The excess is eliminated from the body via the urine. The vitamins that make up the water soluble category include the B vitamins, Vitamin C and Vitamin H (Biotin).

The B vitamins are responsible for several crucial bodily functions. During the process of converting glucose from carbohydrates, the B vitamins provide energy to the body. Without B vitamins, the body wouldn't be able to properly metabolize proteins and fats.

One of Biotin's primary responsibilities is to ensure proper growth and Vitamin C is important for its antioxidant effects but both benefit the body in many other ways, too.

If you can't get the vitamins you need from consuming a balanced diet, consider taking a multivitamin supplement. Your health depends on it!