Does drinking coffee on an empty stomach cause weight gain?

I’m drinking coffee in the morning without eating anything, as it keeps me full and helps me start the day energetically. But a friend told me that drinking coffee on an empty stomach can stop metabolism and cause weight gain. Is this true or just an urban legend? If anyone knows, could you enlighten me? I’m confused.

I’ve always had coffee on an empty stomach, especially since I love it with milk. But I realized it was burning my stomach, and sometimes it made me feel weirdly tired. I stopped; now I snack on something first. You mentioned it keeps you full, maybe that relates to your daily routine?

So what did your friend say about stopping metabolism? Did they just read something and make it up, or is there really a scientific source? I’m confused because everyone says something is harmful these days. I think you should ask a doctor or a dietitian; at least you’ll get clear information.

Actually, drinking coffee on an empty stomach can increase stomach acid, which might cause discomfort in some people. But the issue of weight gain is a bit subjective. So coffee itself doesn’t directly make you gain weight, but if you feel the need to eat more throughout the day, it might disrupt your balance. The content of the coffee is also important; is it sugary, creamy, etc.?

Update: Friends, after looking at the comments, I thought about it and realized my coffee is always unsweetened and plain. I haven’t felt any severe stomach issues, but I’m worried about gaining weight. Also, I usually don’t have time for breakfast in the morning; should I try to change that?

For example, if you start your morning only with coffee, do you end up getting really hungry by lunchtime and eating too much? Because while some people feel good with just coffee, they can lose control by noon. Maybe that’s not the issue, but since you mentioned you start off energetic, I think you should pay attention to how you feel afterward.