Vegetables not shown to be beneficial

Partially SupportedA diet with greater than five portions of fruit and vegetables per day for 12 weeks showed no changes in any biomarkers compared to less than two portions.

Not SupportedObservational epidemiology studies on plant-based diets are flawed due to user bias and do not account for other healthy behaviors.

Partially SupportedA diet including 250g of broccoli per day decreased plasma CRP and TNF-alpha.

Partially SupportedExtensive dietary and behavioral counseling, including a goal of 5-8 servings of fruit and vegetables daily, decreased serum IL-6 concentrations over four years.

Partially Supported