Whey protein is a dietary supplement designed most often used after exercise to help with muscle recovery and muscle tone.

It’s often used by bodybuilders to help them build muscle mass.

I’m not 100% sure whether whey itself is classed as a low gi food in itself but as there are added sugar and sweetners it’s unlikely. However, if it is mixed with skimmed milk this would help reduce the gi count. You could also add peanut butter to it for extra substance. Although this is probably not a good option if you’re trying to lose weight!

There are arguments for and against mixing whey protein shakes with milk or with water. If you mix it with water it’s absorbed into your blood stream much quicker.