Physiological stresses such as blood loss, burns, measles, and cancer increase the risk of deficiency for which vitamin?

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Multiple Choice

Physiological stresses such as blood loss, burns, measles, and cancer increase the risk of deficiency for which vitamin?

Explanation:
When the body is under stress from blood loss, burns, infections, or cancer, there’s rapid cell turnover and a need to make a lot of new DNA for tissue repair and blood cell production. Folate (vitamin B9) is a key cofactor in one-carbon metabolism that supplies the building blocks for DNA synthesis—thymidine and purines. That makes folate demand rise precisely in these situations. If intake or absorption can’t keep up, folate deficiency can develop quickly, leading to impaired DNA synthesis and cells that don’t divide normally. The other vitamins listed are important for various metabolic steps, but folate’s role in DNA synthesis and rapid cell division makes it the most affected under these stresses.

When the body is under stress from blood loss, burns, infections, or cancer, there’s rapid cell turnover and a need to make a lot of new DNA for tissue repair and blood cell production. Folate (vitamin B9) is a key cofactor in one-carbon metabolism that supplies the building blocks for DNA synthesis—thymidine and purines. That makes folate demand rise precisely in these situations. If intake or absorption can’t keep up, folate deficiency can develop quickly, leading to impaired DNA synthesis and cells that don’t divide normally. The other vitamins listed are important for various metabolic steps, but folate’s role in DNA synthesis and rapid cell division makes it the most affected under these stresses.

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