Nutrition supplement…the term is well-known to most of us. But we have to understand what nutrition supplement is and why it is so important for us. Nutrition is the provision which is necessary, and is given to the body in the form of food to sustain life. When we take vitamins, amino acids, minerals, herbs, etc. they help our body to stay healthy.It is true that when some individuals do not get sufficient nutrition through food and even when a well balanced diet does not work for them, they have to take the help of nutrition supplement to maintain their health. To put in other words a nutrition supplement is supplemented in the diet to make up for the deficiency. When you take these supplements, it gives the required level of vitamins, minerals, minerals, etc. to our body. It is imperative to be careful when you buy these nutrition supplements, as there may be some brands available in the market may not meet FDA standards.There are many more people now than before, who use some kind of nutrition supplement. According to a market research firm in New York City in 1996 itself people spent more than $7 billion on nutritional supplements. You can find these supplements in many forms like nutrition supplement bars, tablets, powders, liquids, etc. Many of these supplements like the bars do not need any prescription and you can easily buy them from grocery store, drug store, or even through the Internet. There are questions asked by the people about the bars which have nutrition supplement as to how good they really are. There is a lot of advertisement and manufacturers claim that the bars have a high level of protein and low level of carbohydrate.People who take interest in nutrition and nutritional supplements most probably would have heard of antioxidants. These are nothing but nutrients like minerals, vitamins and enzymes which defend our body from free radicals. They are found in a number of nutritional supplements. Nutritional supplements that contain antioxidants are very useful as they neutralize the free radicals which are harmful for our body. Nutritional supplements assist in replenishing the nutrients which are lost while neutralizing the free radicals.Free radicals are harmful molecules as they have an uneven number of electrons in them. As a result they either snatch an electron from the body’s cells or release an electron into your body, which can disturb cells or DNA of the body. That is where the antioxidants are useful as they don’t let the free radicals to damage your cells.