The Mediterranean diet and a plant-based diet are both touted as healthy choices by health experts. However, it's not clear which of these approaches is more effective for weight loss and other health parameters. A randomized, crossover study published in the Journal of the American College of Nutrition looked at the effects of both diets for 16 weeks on weight, cholesterol, and blood pressure. Let's take a look at the data and see how you can apply the results to your healthy lifestyle.