Vitamin D2 supplements may reduce D3 levels
Vitamin D2 supplements may reduce D3 levels, affecting immune function.
Why it matters
- Vitamin D is essential for immune function and overall health.
By the numbers
- Meta-analysis of 11 studies with 655 participants.
The big picture
- D2 supplements reduce D3 levels but still provide sufficient vitamin D.
- D3 may be more beneficial for immune support.
- Plant-based D3 supplements are emerging.
What they're saying
- One comment notes the headline is misleading; D3's effect on D2 levels is unclear.
- Another suggests D3 is more effective and commonly found in supplements.
Caveats
- Mechanism behind D2 reducing D3 levels is unclear.
- Study doesn't recommend stopping D2 supplements.
What’s next
- More research needed on mechanisms and long-term effects.
- Development of plant-based D3 supplements ongoing.