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Scientists Warn Popular Vitamin D Supplement May Have Hidden Downside
Research indicates that vitamin D2 supplements may lower levels of vitamin D3, which is more effective for maintaining vitamin D status in the body. This finding raises questions about the interchangeability of these supplements.
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What Happened?
Research indicates that vitamin D2 supplements may lower levels of vitamin D3, which is more effective for maintaining vitamin D status in the body. This finding raises questions about the interchangeability of these supplements.
AI Quick Summary
Research shows vitamin D2 can lower vitamin D3 levels, raising questions about supplement choices.
Key points
- Vitamin D2 can reduce levels of vitamin D3 in the body.
- D3 is generally more effective at raising and maintaining vitamin D levels.
- The U.S. National Institutes of Health recommends D3 over D2.
- Vitamin D is crucial for calcium absorption and bone health.
- A 2025 study found that D2 supplementation led to lower concentrations of D3.
- D3 may have different effects on the immune system compared to D2.
Key insights
- The reduction of D3 levels by D2 could lead to reconsideration of supplementation guidelines.
- Individuals may benefit more from D3 supplements, especially in regions with limited sunlight.
- The findings highlight the need for accessible plant-based D3 sources in the UK.
- Understanding the metabolic differences between D2 and D3 is crucial for public health.
Why it matters
This research could influence vitamin D supplementation recommendations for better health outcomes.
Source
Science Daily