Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
Caffeine takes the sting out of physical exertion without carbohydrates
A small group of strength athletes and endurance athletes know firsthand that a low-carbohydrate diet can improve body composition with minimal loss of muscle mass. A disadvantage of this approach is that the switch to a low carb lifestyle takes time, and that during this period training becomes extremely heavy and tiring. A supplement that might help is good, old caffeine.
On the third day of the ketogenic period, the subjects had to cycle for two hours at an intensity of 75-85 percent of their maximum heart rate.
On one occasion the subjects took a placebo an hour before they started cycling, on the other hand a supplement containing caffeine. The cyclists were given 5 milligrams of caffeine per kilogram of body weight.
This was especially the case for ammonia. Caffeine reduced the increase in ammonia by as much as a quarter.
The researchers suspect that caffeine increases the availability of glucose during exercise with a low carbohydrate intake. As a result, the muscles need to break down less proteins.