You should stay away from solutions that can flatten your stomach overnight because any method that can make you lose weight that fast is in no way good for you. I personally would put in the hard work to honestly remove stomach fat as it's more beneficial for you.
All the healthy ways will lose weight slowly, but surely without worry of health issues. All the fast ways, normally aren't good for you to be honest.
If you are concerned about your health, you should be avoiding the following:

