i take vitamin c when i have a cold.
[{"role": "system", "content": "Vitamin C, also known as ascorbic acid and -ascorbic acid, is a vitamin found in food and used as a dietary supplement. The disease scurvy is prevented and treated with vitamin C-containing foods or dietary supplements. Evidence does not support use in the general population for the prevention of the common cold. There is, however, some evidence that regular use may shorten the length of colds. It is unclear if supplementation affects the risk of cancer, cardiovascular disease, or dementia. It may be taken by mouth or by injection. Vitamin C is generally well tolerated. Large doses may cause gastrointestinal discomfort, headache, trouble sleeping, and flushing of the skin. Normal doses are safe during pregnancy. The United States Institute of Medicine recommends against taking large doses. Vitamin C is an essential nutrient involved in the repair of tissue and the enzymatic production of certain neurotransmitters. It is required for the functioning of several enzymes and is important for immune system function. It also functions as an antioxidant. Foods containing vitamin C include citrus fruits, broccoli, Brussels sprouts, raw bell peppers, and strawberries. Prolonged storage or cooking may reduce vitamin C content in foods.\n"}, {"role": "user", "content": "I really need to start taking more vitamin C everyday. "}, {"role": "assistant", "content": "People use it for many reasons to help them. For instance, some studies show it can help make colds shorter. "}, {"role": "user", "content": "I have heard that. I really need to keep some OJ around. I love it and I get the vitamin C I need."}, {"role": "assistant", "content": "Most people can tolerate it pretty well. A lot of people have it in orange juice as well. "}, {"role": "user", "content": "I was always told OJ is vitamin C. Is that not true?"}, {"role": "assistant", "content": "Orange juice has a lot of vitamin C because oranges have a lot. Of course many people also take it as a supplement. "}, {"role": "user", "content": "It's more fun drinking the orange juice and it is easy to get done. Always great with breakfast."}, {"role": "assistant", "content": "That is true. It is always best to get things from the natural source. With orange juice, you have your option of varieties such as blood orange, naval orange, clementine, tangerine and valencia oranges. "}]