Some caution is advised when making means on a GI Diet, as combining foods together can mean changing the G.I. ranking of the meal. The rule of thumb here would be to consume mostly low GI foods, increasing the odds that total GI level would stay low enough for high energy weight loss.
There are many places on the web to find out more about Glycemic Index (sometimes spelled “Glycaemic Index”). As always, check with your doctor before you begin any diet regimen. Good luck, and healthy living!