Coffee alone does not cause weight gain — and may, in fact, promote weight loss by boosting metabolism and aiding appetite control. However, it can negatively affect sleep, which may promote weight gain. Additionally, many coffee drinks and popular coffee pairings are high in calories and added sugar.

Is coffee bad for weight loss?

Black coffee is a good drink for weight loss, as long as you drink it in moderation and without too many added sugars. However, coffee can lead to unhealthy weight gain if you don't drink it black, as many popular coffee beverages are loaded with extra sugar and calories.

Is it fattening to drink coffee?

As long as you limit cream and sugar, coffee isn't fattening like other caffeine-based substances such as energy drinks and soda. The calorie content in a plain cup of brewed coffee is next to nothing, and there's no fat either.