Experts caution against taking long-term, high-dose supplements of vitamin _____ because they are believed to increase risk of lung and colorectal cancers in some people

Question

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Vitamin A in high doses over long periods is associated with an increased risk of lung and colorectal cancers in some individuals, leading experts to caution against such supplementation practices.

Experts Caution Against Taking Long-Term, High-Dose Supplements of Vitamin _____