Reduce the size of your meals slowly. If you make a sudden, drastic change to the portion size, your body will think that it has not eaten enough after a meal, and will compensate by reducing the rate that it uses energy. https://www.webwiki.nl/melissafarm.gr/%CE%A0%CF%81%CE%BF%CF%8A%CF%8C%CE%BD/meli-pefkou-930gr/