Dairy products such as cream and cheeses. They work well in cooking as they satisfy. The problem is if you’re munching a lot of cheese in front of the TV in the evening… without being hungry. Be careful with that. Or lots of cream with dessert, when you’re actually already full and just keep eating because it tastes good. Or another common culprit: loads of heavy cream in the coffee, many times per day.
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.