By definition, protein bars are high in protein. They are more suited to a recovery role after exertion and are intended to help muscles develop. This is why this type of product is used as a post-exercise snack. Of course, they will not replace daily meals, but can help satisfy a craving in the middle of the day.
Conversely, the energy bar (or energy bar) is intended primarily for athletes looking for suitable supplements, whether they are runners or weight training practitioners. It is generally high in calories. The energy bar is therefore generally rich in either carbohydrates (like glucose) or lipids. Their protein content is fairly average. This bar was designed for athletes and athletes who need to refuel before and during physical exertion. It is these energy sources that allow them to feed their muscles before and during each performance. These two types of energy bars have different objectives.
Indeed:
Carbohydrate-rich energy bars are best used for short-term physical activity or for intense exertion at any given moment, as they provide the body with a source of energy that can be used instantly. These products are generally cereal bars (seeds, oats, puffed rice) with honey or date paste bars with fruit. They should not be eaten in large quantities or at any time, as this could result in a high glycaemic index.
While the sugarless energy bar focuses on lipids, which are major components of the membranes and nervous system. They are the source of hormones and other important molecules. They contribute to the intake of fat-soluble vitamins and provide essential fatty acids for longer and more intense physical activity.
The high-fat energy bar is, of course, an important energy reserve. It replaces carbohydrate intake when these are lacking by the ketosis process. By using glycerol from fats (triglycerides), the body breaks down amino acids to make glucose. This is called neoglucogenesis. The body then manages to maintain its glycogen level at half of its optimal value, without inducing risk of muscle loss, on the contrary: in ketosis, mitochondria are adapted to burn in priority ketones bodies and fatty acids to bring energy, preserving protein and sugar reserves.
The sugarless energy bar can be consumed before, during and after exercise. It can also be used as an appetite suppressant in the case of low hunger. These energy bars are often made from oilseeds such as almonds, walnuts, peanut and macadamias to ensure a high fat content. The texture of these bars is often softer.