Buying From the Web: You can find many of the less common forms of vitamin C supplements from the web, however, you should exercise caution and take the time to find a reputable source. First, the United States Pharmaceutical Convention (USP) sets the standards for all dietary supplements. Check to see that the vitamin manufacturer has passed their verification program.
There is also a school of thought that claims very high doses of vitamin C (more than 2000 mg per day) can prevent many serious diseases, but as yet there seems to be no conclusive evidence to support or refute this. Paying attention to your vitamin intake is an important part of living a healthy lifestyle.
Vitamin C is a water soluble vitamin, which means that the human body does not store it. Our bodies also do not produce vitamin C, so we need to get it from our diets. The best way to ensure that you are getting enough vitamin C is to eat foods that are high in it on a daily basis. If you follow the current RDA for vitamin C, this is not difficult to do because there are a host of foods that are high in it.
Dietary Sources: It is commonly known that citrus fruits are rich in vitamin C, but there are a great many other fruits and vegetables that are excellent sources of this important nutrient. Fruits that are good sources include currants, cantaloupe, kiwi, oranges, papaya, mango, strawberries, watermelon, pears and grapes.
It is still very important to speak to your doctor about vitamin C supplementation, especially if you are thinking of trying it at higher doses. Some health conditions, such as cirrhosis of the liver, gout and sickle-cell anemia may be complicated by mega doses of vitamin C. In addition, amounts higher than 2000 mg per day may cause side effects – namely, nausea, diarrhea and the recurrence of kidney stones in people who have already had them.
Look into: where to get vitamin c