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. Vitamins that are fat soluble are best absorbed if they are taken with food that contains fat. You should always take vitamins with meals, as the minerals and nutrients found in food will work with the vitamin supplements. Don t get the wrong idea here, fruits and vegetables are indeed good for you. They are high in antioxidants, although those that are produced commercially generally come with chemicals and such that aren t so good for you. Canned fruits and vegetables come with high levels of sugars and calories, which antioxidant supplements don t have. The best sources for vitamin B3 niacin include beef, pork, turkey, beets, veal, fish, chicken, salmon, tuna, and peanuts. You can also get supplements that contain B3 niacin as well, which can give your body the amounts it needs. This is a very important vitamin, as it does a lot more for the body than most think. Research in the past has shown that there really aren t any advantages to taking excessive amounts of this vitamin. Even though you shouldn t take excessive amounts of vitamin C, you shouldn t have a deficiency in the vitamin either. The most common signs of a deficiency in vitamin C include swollen gums, an unexplained weakness, and nosebleeds. If you don t use vitamin E, in this situation, the blood will stop flowing and the arteries will begin to get backed up. As most of us know, this is the main cause of heart attacks, high blood pressure, and other serious diseases. Even though many researchers and doctors have linked vitamin E to preventing cancer, this hasn t been conclusively proven. When you use vitamin supplements, you want to be sure that you are getting the most amounts possible. Vitamins are a great alternative to minerals and nutrients found in food, and are ideal for those who aren t able to eat the right foods. Vitamin supplements are also great for athletes or those looking for more energy, as they will supply the levels your body needs for exhaustive activity.