Here are 3 seemingly harmless low or no calorie foods that could actually be keeping you fat !
1) Cooking Spray - per "serving" it has almost no calories. But non of us use "one serving". We soak the pan.
2) Diet sodas - the artificial sweeteners trick your body into thinking carbs are coming in which sends insulin into the bloodstream slowing fat burning.
3) Coffee - drinking too much can throw off normal sleep patterns keeping you hungry during the day (making you eat more). Coffee also causes your body to release stress hormones causing you to be tired and reach for food for energy.