The Glycemic Index (GI), measures how a food containing carbohydrates raises blood glucose levels.
WHY IS IT IMPORTANT TO KEEP IT LOW?
Feeding cats and dogs food that have low glycemic index is important because their metabolism has evolved to gain energy from animal proteins and fats, not carbohydrates. Carbohydrates traditionally found in cat and dog food formulas provide a quick energy burst. Nevertheless, most industrial pet foods on the market contain 40% to 60% cereals which are rich in easily digestible carbohydrates. N&D food lines contain 0% (grain-free) to 20% (low ancestral grain) cereals.