Story perspectives
Vitamin D Boosts Immunity: Probiotics Fall Short
10/8/2025
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Story summary
- Evidence supports Vitamin D and Vitamin A for immune function; a 2020 review links Vitamin D deficiency to infections.
- Daily Vitamin D supplementation is recommended in winter; Vitamin D3 maintains blood levels better than Vitamin D2.
- Probiotic yogurts lack proven immune benefits; probiotics may raise T cells, but infections remain unproven.
- Consumers should evaluate health claims and consider underlying evidence.
