Oh, it's not condescending - like you say I just googled quickly and the beef one seemed close enough to be plausible, so I took a gamble that they were roughly

Oh, it's not condescending - like you say I just googled quickly and the beef one seemed close enough to be plausible, so I took a gamble that they were roughly right - To be honest I did the numbers manually on the celery first, then I got impatient. Thanks for the Wikipedia link - although it bears noting that edible protein is distinct from calories, and a good example of the complexity that calorie-focused "bioefficiency" metrics miss.