I agree with running but not cycling - I’d say it’s merely a question of how hard you try.
Cycling is one of the very few sports (along with maybe swimming) that you can do for extreme amounts of time without acutely harming your body.
The issue that does affect people is that if you started with the bad diet, you probably don’t have the fitness to produce the required output that would overcome it.
If you manage to increase your fitness so that you sustain higher outputs however you absolutely can out-train your terrible diet!
Cycling is one of the very few sports (along with maybe swimming) that you can do for extreme amounts of time without acutely harming your body.
The issue that does affect people is that if you started with the bad diet, you probably don’t have the fitness to produce the required output that would overcome it.
If you manage to increase your fitness so that you sustain higher outputs however you absolutely can out-train your terrible diet!