The best meal replacement shakes and bar's will contain protein from a whey source, when examining the ingredients make sure whey protein isolate is the very first ingredient as this is the purest form of protein you will get without the lactose and fat.

Avoid fructose, sucrose, glucose containing meal. This carbohydrate sources will come from low gi carbohydrate sources such as oats, waxy maize starch or maltodextrin, the meal replacement bar or shake may contain glycogen which is great for refueling your body after glycogen levels are depleted after exercise. Soy protein isolate is also a good option for women. These are carbohydrates which have the least effect on your blood sugar and will not cause insulin spikes. When looking for the best meal replacement shake or bar first thing you want to look at is the amount of carbohydrates and where these carbohydrates are being sourced. Looking for a carbohydrate often referred to as zero impact carbohydrate. Anything with whey protein concentrates as its first ingredient you should stay away from.

Meal replacement weight loss - Sugars.