Every food can be classified by glycemic index.  Foods that have a high glycemic index lead to higher insulin levels and reduced glucagon in the bloodstream.  As a result, the body is not as effective at burning fat.  Therefore, you should try to consume foods that fall into "low" and "moderate" categories.

Using the tables provided, you can adjust your diet in order to ensure that you are storing less fat and burning more.

Thirteen reasons to use fish oils to get lean

Serious trainers want to find a supplement that will give them an edge. For those of us interested in positively and optimally altering body composition and maximizing our training efforts, fish oils offer thirteen possible advantages.