Not the right term to use
Losing stomach fat (German: abnehmen am Bauch) really is not the right term to use. When you lose something you usually do so by accident and the connotation behind it is often negative “I lost my mother last year”, “I lost my wedding ring” or what have you. Instead of mindset of fat removal is much stronger, removal of something is often done deliberately and most of the time considered being positive, “I had a tumor removed.” Remove fat from your stomach start by cutting down portion sizes and walking a few days a week, when you’re ready to can start doing more vigorous exercises.
