You can buy your vitamin supplements on the Internet, or through a local nutrition store such as GNC. GNC is among the most popular in terms of local stores, as they carry hundreds and hundreds of vitamins and supplements. You can find everything from health vitamins to bodybuilding supplements. They have rock bottom prices with plenty of manufacturers, including the top name brands. One of the main reasons to take nutritional supplements is due to poor eating habits. Those who have busy lifestyles, sometimes don t eat as healthy as they should. Often times, it can be very hard to take the necessary time to eat a healthy meal. Whenever we can t get a healthy meal, we can always look towards supplements. The safest form of vitamin A is beta carotene as mentioned above, and it can be taken in much larger doses. No matter what age you may be, you can feel safe to consume high amounts of vitamin A in the form of beta carotene. If you don t consume enough vitamin A in your diet, you ll end up with a deficiency. Other vitamins that are great for providing energy include the msm supplement and gingko biloba. If you happen to be on a blood thinner, such as aspirin, you should always consult with a doctor or other trained specialist before you take gingko biloba, as it is a blood thinning agent. Even though it is considered to be an energy vitamin, if you use it with aspirin it can thin your blood down a bit too much. Vitamins have been around for hundreds of years, providing us with a way to live our lives in a healthy manner. Although there are many different vitamins out there, you ll need a certain amount of each one to keep your body healthy. There are many different classifications of vitamins, including A, B, C, and E. Although fruits and vegetables are the best sources for antioxidants, the problem with them is that they are produced by the use of chemical herbicides, pesticides, and different types of fertilizers. Over the years, studies have shown that fruits and vegetables which are organically grown are high in antioxidants, and boast a much higher concentration than those that have been produced commercially.