If you take calcium supplements in large doses, you may experience constipation, vomiting, nausea, a loss of appetite, a dry mouth, and a loss of appetite. If you start to have any of the above problems, you should immediately contact your doctor. When you contact your doctor, you should let him know if you are taking any other medications, and any histories of illness or diseases your family may have. There are also niacin skin care products that are being developed as well, which contain anti-aging products, helping to treat acne and also aid in the prevention of skin cancer. A lot of dermatologists expect that these products will become really popular over the next several years. Even though they are still in development stages, research has proven them to be very effective when compared to the other types of products. Along with being found in supplement and vitamin form, you can find vitamin C in broccoli, peppers, oranges, lemon juice, mustard greens, cauliflower, papaya, and parsley. 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. This very same oxygen, once inside of the body, becomes very reactive through certain molecules and will start to cause damage through the free radicals, which is known as oxidative stress. As an antioxidant, vitamin E will help to prevent this type of stress, which will prevent the cells from aging or sustaining any type of permanent damage as well. For the last few decades, ancient civilizations have used the vitamin in both cooking form and medicine form. Although the technology back then wasn t close to what it is today, the ancient civilizations knew that ginger root would help prevent ailments ranging from motion sickness to athlete s foot. 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. These vitamins are extremely important, with each one serving a unique purpose for both your body and your health.