In a stunning turn of events, a major study published in The Lancet on May 4, 2026, challenges long-held beliefs about the safety and efficacy of vitamin D supplements. The comprehensive meta-analysis, which included data from over 500,000 participants, reveals that excessive daily doses of vitamin D—specifically those exceeding 4,000 International Units (IU)—may be linked…
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New Study Raises Alarming Questions About Vitamin D: Is Your Supplement Dangerous?



