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Comment by grenoire | Hacker News Reader

This is the main reason why I don't and won't fast. The author claims that food is not actually a daily need, whereas I know for a fact that I will injure myself cycling or climbing if I skip even a single large meal in a day. It's a noticeable difference.

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I do maintain a workout schedule but not as intense as yourself. Sounds like you're running pretty close to the edge of all your limits if you can't skip even a single meal.

or alternatively, addicted to something in his regular intake; An opiate addict will also not function as well without their regular dose.

(This is the first account I hear from someone who will get injured from missing a meal. That said, if you have to be addicted to something while keeping in top shape, food sounds like a better deal than opiates).

I didn't mean to exaggerate that badly but climbing is a sport where your ups and downs are very noticeable. If I don't have a solid lunch and climb in the evening, chances are I will get injured trying to do limit moves. I try to ensure I stabilise my diet and not risk that aspect, just no point for me to skip any.

Agreed. If you do any intensive training for endurance sport, the math just does not add up. Even with a very efficient fat-burning metabolism (that I don’t have), there’s only so much fat on your body and muscle mass will be affected. Yes, I do do metabolism-focused sessions of long uniform low-intensity effort without prior eating to get my body used to burning fat. But it takes a lot of time for it to learn it

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