On the other hand, if you are getting too much vitamin A, you ll put yourself at risk for pain in your joints, abdomen, and your bones. Even though too much or not enough can cause you serious side effects, you should always get the right amount in your diet. Vitamin A is very important, and should always be included in your diet. If you are using time released supplements, you should take them with food to ensure that they move through your body at the right pace and release the proper amount of nutrients and vitamins your body needs at the right time. Vitamins that are water soluble are the easiest to use, as they will pass through the body easily and quickly, and should be taken three times a day. Even though vitamin B3 niacin is great as a stand alone supplement, it should also consumed with foods that contain protein, due to the fact that the body is able to convert the amino acid known as tryptophan into niacin. The higher doses of B3 niacin, which are available only through prescription, have been proven to prevent and also improve a variety of different symptoms and ailments. Each year, there are thousands of supplements out there, with customers spending billions and billions of dollars to get the supplements and vitamins they need. Right now, there are 3 different delivery systems for supplements liquid, capsules, and tablets. Although each one is good in its own right, you should always pick one that dissolves easy and doesn t just pass through your system. The vitamin known as NADH is very powerful for energy, although many people aren t aware of it. People who use vitamins on a regular basis would find themselves very impressed with the boost NADH provides. It is often used with chronic fatigue, although the way it works can be quite complicated indeed. In the busy world of today, it can be very tough to eat like we should, nor can we eat organic fruits and vegetables all the time. If you can t or don t have access to organic fruits or other sources of antioxidant foods, you should look into nutritional supplements that offer you the phytonutrients you need in your diet.