5. Fish

Incorporate fish into your diet. Fish will boost your metabolism, fill you up and you won’t feel hungry for a few hours. Tuna as well as salmon contain omega-3 fatty acids – elements that are known for their fat burning effect. Fish is healthy and tasty. Besides, it is easy to prepare!

6. Soy

Soybeans are among the best foods for flat abs. If you are a vegetarian and do not eat meat or fish, then soybeans are a wonderful source of protein as well as fiber and antioxidants. There are a lot of soy dishes you can prepare: add soya to soup, smoothie or eat them dry-roasted.