A recent meta-study analyzing 99 randomized controlled trials (RCTs) highlights the cardiometabolic benefits of vitamin D supplementation. Researchers from China and the United States examined data from 17,656 participants globally, uncovering that an average daily dose of 3,320 IU (about 83 micrograms) of vitamin D is linked to reductions in blood pressure, total cholesterol, hemoglobin A1C (a diabetes marker), and fasting glucose and insulin levels.
The study aimed to resolve inconsistencies in previous research by accounting for variations between the RCTs. The findings reveal that the most significant health benefits were observed in non-Western populations, individuals with lower baseline vitamin D levels, those with a BMI below 30, and adults aged 50 and above.
The study aimed to resolve inconsistencies in previous research by accounting for variations between the RCTs. The findings reveal that the most significant health benefits were observed in non-Western populations, individuals with lower baseline vitamin D levels, those with a BMI below 30, and adults aged 50 and above.
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