One good way to keep yourself thin and to lose weight would be to have breakfast.
Such an idea seems like common sense, yet a lot of people skip breakfast to skip calories. You won't take in as many calories, but you may end up craving food at lunch. https://www.webwiki.nl/melissafarm.gr/%CE%A0%CF%81%CE%BF%CF%8A%CF%8C%CE%BD/meli-pefkou-930gr/