What will happen to the body if there are only vegetables and fruits? 16 Comments / diet, food`s impact on life, fruit, harm, health, health issue, healthy food, healthy habit, healthy lifestyle, life changing, nutrition, self-care, vegetable, vitamins and minerals / By nadiiag An exceptionally plant-based diet has its pros and cons. For years it was believed that for a healthy diet you need to eat five servings of vegetables and fruits per day. This is approximately 400 grams. And that no one eats the required amount.