Board Thread:Versus Debates/@comment-34656247-20180726110937/@comment-26107879-20180729062729

@Jason

No, you just don't know science. Let's just say for example Choji and Hiruzen both weigh 140 lbs hypothetically. For Choji, who starting off in the series was 4'9 ft and 5'1 ft by the end of part 1, he would need to take in about 1900 calories a day with no exercise to maintain his weight. Hiruzen in his prime would need about 1800 calories with no exercise. So they both have around the same amount of calories intake a day.

Then, most of all the Akimichi's techniques use Chakra, not calories. Calories are important for the Akimichi due to the hijutsu called Calorie Control. It's just the power to convert calories into Chakra. So the techniques use Chakra not calories. They just increase their Chakra by sacrificing calories to use the techniques if they need to. Seeing as Hiruzen roughly has the same amount of calories as Choji as a Genin, he can increase his Chakra just as much as Choji increased his.