A massive NIH study of nearly 400,000 adults over 20 years found that daily multivitamin users had a 4% higher mortality risk compared to non-users. The research showed no mortality benefit whatsoever—contradicting the belief that multivitamins serve as health "insurance". Interestingly, multivitamin users typically had healthier lifestyles overall, yet still showed increased risk.
For healthy adults without diagnosed deficiencies, the healthiest nutrients come from food sources, not processed pills. Some specific concerns include potential buildup of excess iron or niacin from daily use. This reinforces that supplementation should be targeted and evidence-based, not indiscriminate.
I don't know about that, I do know that I'm from the UK and I got tested and was actually deficient on vitamin D (and B12, but that's because of my diet)
Yeah incidents of rickets are actually increasing in northern latitudes, especially among darker skinned folks as they need more sun exposure than shiny white people. In the winter in Ireland / UK it's basically impossible to get enough sun exposure to make enough.
Also minimum levels necessary to avoid rickets don't mean optimal levels.
I would love to see a separate study on vitamin D supplementation.
yeah it was our doctor who pestered my wife and I to take them. there is actually a whol calcium, vitamin D, vitamin K chain and if not getting enough of all three the benefit is limited.