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Your contention regarding diet and out-exercising surplus is generally true but not universal. I am occasionally at one extreme, where for a week or so I'll be expending 7000kcal/day and it's physically impossible to replace that amount of calories even with eating the highest caloric density foods I can stomach.

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You allegedly expending 49,000 calories in a week when the discussion is about average people is irrelevant. The post already says it depends on the person too. On the other hand, I am curious how you are possibly exercising that much.

This is why I qualified my experience with being 'occasional.' Basically I do long distance bike races where you're biking for like 18+ hours a day for 2-6 days depending on event. It's an insane thing to do and an insane comparison to make when talking about normal people's diets, but it does illustrate that there is a limit to 'you can't out-exercise the calories.'

Are you running ultras every day?

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