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[–] 7520314? 0 points 1 point (+1|-0) ago 

I really can't believe any scientist or researcher with a shred of common sense would draw any serious conclusions based on self-reported data.

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[–] SaintThorlak 0 points 1 point (+1|-0) ago 

Another victory for CICO

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[–] french_runner 0 points 1 point (+1|-0) ago 

I think it's a bit a both. They genuinely under estimate their food intake (most people under/over estimate it) and they also lie when they feel guilty about something they ate.