"One of my favorite fruits to snack on is bite-sized blueberries," says Burgess. "One cup of blueberries has 80 calories and 4 grams of fiber to keep you satisfied. Anthocyanins, vitamin C, vitamin K, and manganese are also found in blueberries.
Burgess says, "Mushrooms are a rich, low-calorie source of fiber, which can promote fullness and aid in weight management." Now is the time to start eating mushrooms if you don't already!
The benefits of mushrooms are undisputed by research. A one-year research trial found that mushroom-dense diet followers lost seven pounds and had lower BMI and waist circumference.
Dr. Bohl recommends eating plenty of lean protein for a tight, toned stomach. Fish and chicken provide lean protein without the high calorie content of other meats.
A big bowl of oats is another flat-belly item Dr. Bohl advises. He believes oatmeal has antioxidants, vitamins, minerals, and protein. "Its high fiber content may help you lose weight by keeping you fuller longer."
Dr. Bohl says it's important to eat fat even while trying to decrease abdominal fat. The phrase "fats" may make you cringe.
Especially with healthy fats like polyunsaturated and monounsaturated fats. "Avocado is full of healthy fats and goes well with a salad or slice on whole-grain bread," he explains.
Finally, consume carrots and celery—or any fresh veggie—to have a flat belly after 40. "Carrots and celery are low-calorie, high-fiber snacks that keep you fuller longer
"A small bowl of both vegetables can help you feel full between meals without affecting your weight loss."