There are vast differences in how much people eat. Males between 12-25 tend to eat a lot more than girls - hormones mean they can burn a lot of calories without gaining weight - and they are also more likely to be in activities that use a lot of energy (I don't know why this is, but it seems to be the case) Babies of course eat very little.
I can believe both numbers just based on normal genetic variation.
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There are vast differences in how much people eat. Males between 12-25 tend to eat a lot more than girls - hormones mean they can burn a lot of calories without gaining weight - and they are also more likely to be in activities that use a lot of energy (I don't know why this is, but it seems to be the case) Babies of course eat very little.
I can believe both numbers just based on normal genetic variation.
I expect my food bill to go up around 50% once my boys hit their teens, but still, that only puts me at around half the monthly spend of OP