Did you know that nutrition research has concluded that plant-based eating patterns based on the Mediterranean or vegetarian diets can be the most health-beneficial? According to one source, vegetarian diets have been shown to reduce the risk of developing heart disease, high blood pressure, and diabetic conditions while also increasing longevity. One of the most common misconceptions about plant-based diets is that they are deficient in nutrients. Such diets are high in proteins, fats, carbohydrates, vitamins, and minerals.