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video TL;DW: seems like it's basically safe to make an assumption that the reported calories in food could be 10%+ higher than expected, especially among packaged food. Larger restaurant chains like McDonald's and Subway seem to be slightly more accurate.

The surprising part was that it took the science guy 10 hours to calculate the calories for 5 food items ? Would be nice if we could get that down to minutes and accessible to personal consumers.

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> The surprising part was that it took the science guy 10 hours to calculate the calories for 5 food items ? Would be nice if we could get that down to minutes and accessible to personal consumers.

Bomb Calorimetery is a PITA, I almost did a startup around this. The researcher in the video has a fairly manual one, there are automated setups that reduce this time, but they still cost $40k+ and require oxygen tanks, etc.

The even more difficult case for calories is something like a steak: how marbled is it? I could see some computer vision approach working.

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