There has been a lot of discussion on vitamins over the years. Some swear by them, and some say that they are useless. It's important to understand them to make an educated decision on what kind of diet best fits your lifestyle. Let's start off by discussing just what they are.

Vitamins are naturally occurring nutrients that your body needs, but can not produce on its own. While it is true that your body does eventually expel any vitamins that it intakes, it's important to take a look at what they do while they are in your body. (Remember, your body passes all pharmaceuticals as well, but we all know that they have an effect while in our bodies.)

Today we will look at a few key vitamins and their benefits.

Vitamin D: 60% of us do not get enough vitamin D. This is a very important vitamin for your immune system, and believe it or not, we get this vitamin naturally from sun exposure. Due to the heightened awareness of the dangers of melanoma many of us do not get enough sun exposure on our skin to produce enough vitamin D. This is why it's important to take recommended amounts of this vitamin.

Vitamin B: This vitamin is very important in brain and nerve functions, fetal development in pregnancy, boosting metabolism, and even can help with nausea.

Vitamins A, C, and E are your anti-oxidants. Our bodies are constantly exposed to oxygen, which is very beneficial for many bodily functions. The problem with oxygen exposure is "rusting". For an example of this, let's do a little experiment.

Take an apple and cut it in half. Leave one half alone, and then squirt some lemon on the exposed side of the second half, and let them both sit for half an hour or so. After that you will notice that the untreated side has "rusted", while the side that you have exposed to an anti-oxidant remains "fresh". This is a very basic demonstration of what anti-oxidants do for your body.

One of the best sources of anti-oxidants is actually coffee, but other great sources are bananas and green tea.

Another very important supplement is the Omega 3 Fish Oils. These are key for health in your heart, brain, and can even increase IQ.

These are just a few basics about the important vitamins, we will use these for reference in future blogs. As always, consult your doctor before making any changes in diet or lifestyle.

Much of this discussion is reflected in the book You: Staying Young by Dr. Mehemet C. Oz, who is often featured on the Oprah show.