As a chiropractor, I feel people's muscles all day but I didn't know this.
For background, when you exercise, your muscles get stressed. That stress triggers a reaction in the muscle cell. It eats itself and rebuilds even better.
It gets even more complex too - the VO2 max of your body changes, you increase endurance and there are changes with how your body uses fat vs carbohydrates.
So anyway, what I didn't know is that Fructose - the sugar found in fruits - and especially in high fructose corn syrup (found in most processed and refined foods) alters the whole post-exercise changes in muscles that I just talked about!
You might be thinking "but monkeys have muscle and all they eat is bananas!" So I googled "what do monkeys eat?" and here is a list of what monkeys eat:
Anyway, the takeaway for me from the below research study is that the quality of your post-exercise muscle remodeling can be negatively affected if you consume too much fructose.