food and nutrition


Daily Vitamin

Question: How are daily vitamin requirements determined? I've always wondered how the daily vitamin requirements are determined. For example, how did they decide that the human body needs so much Vitamin A, so much Vitamin B, etc. Any ideas?

Answer: There are research scientists who perform a lot of tests and experiments on both lab animals and human subjects and have done for many years. They then analyze their findings to determine the optimum amount of each vitamin for people, usually dependent on age, gender and calorific requirements.


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