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# Diabetes risk lower in those with higher vitamin D
- URL: https://www.foodconsumer.org/diabetes_vitamin_d_0427130806/
- Published: 2013-04-27T09:04:00.000Z
- Updated: 2026-09-22T15:59:37.000Z
- Description: A Diabetes Care meta-analysis of 21 prospective studies covering 76,220 adults, led by Yiqing Song, found people with the highest serum vitamin D were 38 percent less likely to develop type 2 diabetes. Each 10 nmol/L increment corresponded to a 4 percent lower risk.
- Author: Food Consumer
- Tags: Diabetes, Avoiding Illness, #vivvo-import

By Jimmy Downs

Saturday April 27, 2013 (foodconsumer.org) -- A new meta-analysis published in Diabetes Care again confirms that maintaining a healthy level of serum vitamin D can prevent type 2 diabetes mellitus.

Yiqing Song, MD, SCD from Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts and colleagues conducted the analysis and found those with the highest serum level of vitamin D were 38% less likely to be diagnosed with type 2 diabetes, compared with those with the lowest.

For the study, Song et al. searched medical databases Medline and Embase for relevant studies released up to Oct 31, 2012 which assessed the association between blood concentrations of 25(OH)D and the risk of incident type 2 diabetes.

Data included in the analysis came from 21 prospective studies involving 76,220 men and women and 4996 incident type 2 diabetes cases.

The researchers found those with the highest concentrations of serum vitamin D were at 38 % reduced risk for type 2 diabetes compared with those with the lowest serum levels of vitamin D.

There was an inverse association between vitamin D levels and the risk of type 2 diabetes, which was independent of gender, duration of follow-up, study sample size, criteria for diabetic diagnosis, or the method for vitamin D assay.

Specifically, each 10 nmol/L increment in vitamin D concentrations was correlated with a 4% reduced risk for type 2 diabetes.

The study concluded "Our meta-analysis showed an inverse and significant association between circulating 25(OH)D levels and risk of type 2 diabetes across a broad range of blood 25(OH)D levels in diverse populations."

In addition to vitamin D, other dietray supplements may also help prevent type 2 diabetes. A recent Indian study found men and women with pre-diabetes who took 6 grams of curcumin prevented the condition from progressing to become type 2 diabetes. Cinnamon may also help reduce the risk.