How effective is eating apples for weight loss?
Apples, especially sour ones, do two things: it stimulates acid production and it makes you feeling full. Here's an incredible fact: if you eat an apple 15 minutes before meals, the total amount of calories per day reduces by 150 - 200 calories.
We eat less because our stomach is already partially full. Plus, the high amount of fiber in apples speeds up the metabolism.