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Index/Topics/Vitamin D Effects on A1C

Vitamin D Effects on A1C

The impact of vitamin D on A1C levels in diabetes management

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2 results
Jan 27, 2026

Which individual randomized controlled trials showed the largest effects on A1c, and what were their designs and risk‑of‑bias assessments?

Three types of randomized controlled trials stand out in contemporary reporting for producing the largest individual reductions in (absolute percent change): intensive multi‑year glycemic‑control tria...

Jan 13, 2026

How should consumers evaluate supplement claims about A1C changes compared with prescription diabetes drugs?

Consumers comparing supplement claims about A1C changes to prescription diabetes drugs must weigh modest, variable trial results for some supplements against large, well-controlled trials showing clin...

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