Scientists warn a popular vitamin D supplement may have a hidden downside
Wednesday, October 7, 2026Want headlines delivered to your inbox?
Subscribe to our free daily newsletter.
Not all vitamin D supplements are created equal, and new research suggests that one popular form may have an unexpected downside. Scientists found that taking vitamin D2 can actually lower the body's levels of vitamin D3, the form naturally produced by sunlight and more effective at boosting overall vitamin D. Previous studies also suggest that vitamin D3 may provide stronger immune protection against viruses and bacteria. (via Science Daily)
Read the Full StoryThis article will expire in 26 days.
In the News...
View All Recent News
- Loneliness may steal nearly 6 years of good health
- Scientists may have found why diabetic wounds refuse to heal
- Bowel cancer “melted away” after immunotherapy, then stayed away
- Scientists discover 5 hidden brain patterns behind depression
- Nearly 30,000 people tested quit-smoking methods. One stood out
- Scientists tested 5 natural compounds on cancer cells. One stood out
- Bacteria turn a virus’ own weapon against it
- Only one workout helped older adults lose fat and keep muscle
- Just 7 days of strength training started shrinking fat cells in mice
- FDA-approved epilepsy drug may help reverse osteoarthritis damage
- Stanford scientists turn a cancer driver into a kill switch
- Dads are dying after their kids are born, and almost no one is tracking it
- Not all trans fats are bad, major review finds
- Scientists warn a popular vitamin D supplement may have a hidden downside
- Drug target could block brain inflammation linked to Alzheimer’s and Parkinson’s
- Scientists reprogram immune cells inside the body to fight cancer
- Taking antibiotics? Sugar may be making the damage worse
- What happens in the brain when cannabis makes you anxious?
- A new way to fight gum disease without wiping out good bacteria
- A few drops of this Japanese tree oil may help you sleep more soundly