Originally Posted by Eyes Roll

Personally, I wouldn't consume any supplements or medications just to become physically stronger for biking or running. It's similar to Louis Armstrong taking performance-enhancing drugs, or a swimmer, soccer player, or sprinter using steroids to perform better in competitions.

Do it naturally. Consume natural foods like nuts, energy bars, apples, or even sandwiches during your rides. You can also add an extra spoon or two of sugar or salt to your daily diet, as those are natural options. For recovery after rides, there’s nothing more natural than getting a good night's sleep. I encourage you to do it the natural way. What, by following the natural approach, would you do fewer sprints on the bike? You can still ride at a normal pace and have fun.

As for Sierra Rider, he is in his late teens or early 20s, right? A big 'NO.' At that age, he should be able to run 10 miles and bike 100 miles without consuming ANY supplements at all.

Guys, whether you are old or young, do it the natural way.