Yes, it is very possible. First and foremost, drink a lot of water, six to eight glasses per day are recommendable since water contains zero calories. Water is good for cleansing and also good for muscles. Avoid drinks like sodas and juices.
Eat several times a day like five times but only small meals to avoid cravings and cut down of snacks thus reducing the urge to eat unhealthy snacks.
Eat a very balanced diet including fruits, vegetables, carbohydrates, and proteins. Also, avoid eating food because you're hungry, you can keep the food for later.