RCTs

Vegan diets significantly reduced body weight (23lb/10kg), BMI, LDL/total cholesterol, and HbA1c - likely mediated by enhanced satiety, reduced saturated fat intake, improved insulin sensitivity, and gut microbiota modulation, systematic review and meta-analyses of RCTs finds

Meta analysis -25 RCTs showing D3 supplementation is safe & it protected against acute respiratory tract infection. Patients very vitamin D deficient & those not receiving bolus doses experienced the most benefit. D3 reduced risk of acute respiratory tract infection among all participants