
Vitamin D: 3 mistakes that blunt the benefits, says heart surgeon
Vitamin D supplements often fail not due to the pill itself but because of three common mistakes: taking it on an empty stomach (fat-soluble vitamin needs fat for proper absorption), using an inappropriate dose without checking blood levels, and overlooking magnesium, which is needed to activate vitamin D. To fix this, take vitamin D with healthy fats, get your blood levels tested to guide dosing, and ensure adequate magnesium intake—results are typically seen in 8–12 weeks.













