You're Into the Wrong Foods.

Unhealthy eating is the biggest driver of big bellies. Too many starchy carbohydrates and bad fats are a recipe for that midsection to expand. Instead, get plenty of veggies, choose lean proteins, and stay away from fats from red meats. Choose healthier fats in things like fish, nuts, and avocados.

Even a moderate cutback on carbs (grains, pasta, sugars) can help, too.

You're Just Too Into Food.

That under-skin belly fat (called subcutaneous) and the fat under your abdominal muscles and around vital organs (called visceral) need to go. Visceral fat makes cardiovascular disease and diabetes more likely. It can also lead to high blood pressure and more. Eating too much is at least partly to blame for that flab. Limiting your portions can keep visceral fat down.

You're Smoking.

We all know the dangers of smoking. Add this to the list: One study showed that it leads to more abdominal and visceral fat. So if you needed one more reason to quit, you have one.

You're Stressed.

When the stress hormone cortisol goes through your body, fat takes residence in your belly. Talk to your doctor about how to handle your stress. Exercise can help ease it. Meditate. Do yoga. Put together a good support system. Talk to a mental health professional if you need it.

You're Not Exercising Enough.

Nobody said shedding belly fat was going to be easy. If your gut is stretching the tape measure too much -- for men, that's more than 40 inches around the waist, and women, more than 35 -- you need moderate physical activity (like walking) for at least 150 minutes a week, or vigorous (running) for 75, and strength training at least twice a week.

You're Doing the Wrong Exercises.

Those sit-ups aren’t enough. You also need weight training to build muscle. More muscle means more calorie burning.

That said, if you can only do one exercise, choose aerobic exercise. It works best for burning fat. Make it a habit, and slowly ratchet up the intensity to get the results you’re after.

Sources - https://www.webmd.com/diet/ss/slideshow-night-lose-weight

Photo Credits -

https://www.healthshots.com/fitness/weight-loss/