With such a topic so broad we truly try to cover the basics from all angles in this group. Nothing too big or too small. Nutrition is as significant if not more as exercise is to reaching your goals so learn all you can.
I found a ranking system on the web if anyone is interested based on how the body absorbs and converts simple and complex carbohydrates into glucose. It explains how the glycemic index measures the speed that a carbohydrate (for 3 hours after a meal) is turned into glucose. EG: a value of 55 or less is low, 56-69 is medium and 70+ is high. Also, the glycemic load tells you how much carbohydrate (minus the fibre content) is available in food. A glycemic load of 10 grams or less per serving is low, 11-19 average, and 20+ is high. Glycemic index and glycemic load together determine if the food has too much sugar. Using this zip file list you can choose foods with a low to average glycemic index and load, to minimize insulin spikes and potential weight gain over time. http://www.mendosa.com/gilists.zip