Sunday's lunch and dinner at home

Due to the hazy condition and being a Sunday we decided to eat-in. Lunch was a bowl of unagi or grilled eel rice. Dinner was chicken curry and rice. In fact, I had 2 serving of the curry rice and guess what? My weight went down by 400 gm. If I were to eat out, my weight would go up even with the same amount. I think the oil, ingredients etc the restaurants and hawkers use in their cooking are not of good qualities.