Questions: Routine vitamin C supplementation may reduce the duration of cold symptoms by a day or so prevents common colds among the general population prevents Alzheimer's disease reduces the risk of kidney stones

Routine vitamin C supplementation may reduce the duration of cold symptoms by a day or so prevents common colds among the general population prevents Alzheimer's disease reduces the risk of kidney stones

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The answer is the first one: may reduce the duration of cold symptoms by a day or so.

Explanation for each option:

  1. May reduce the duration of cold symptoms by a day or so: This is correct. Studies have shown that routine vitamin C supplementation can slightly reduce the duration of cold symptoms, typically by about a day.

  2. Prevents common colds among the general population: This is incorrect. While vitamin C is often thought to prevent colds, research indicates that it does not significantly reduce the incidence of colds in the general population.

  3. Prevents Alzheimer's disease: This is incorrect. There is no conclusive evidence that vitamin C supplementation can prevent Alzheimer's disease.

  4. Reduces the risk of kidney stones: This is incorrect. In fact, high doses of vitamin C can increase the risk of kidney stones in some individuals due to the formation of oxalate, a component of certain types of kidney stones.

Summary: Routine vitamin C supplementation may reduce the duration of cold symptoms by a day or so, but it does not prevent common colds, Alzheimer's disease, or reduce the risk of kidney stones.

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