What is the three D's vitamin? Debunking the Niacin (B3) Misconception
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3 min read
The classic triad of symptoms known as the "three D's" has historically been associated with the severe vitamin deficiency disease called pellagra, a condition that results from a lack of niacin (vitamin B3), not vitamin D. This common mix-up often leads to confusion about what is the three D's vitamin.