my dog are eating foods
my do are eating foods
My dogs are eating food (no 's')
It's not possible to have one 'food', so it's not necessary to apply the 's'.
If you refer to 'food groups' or 'foodstuffs' - these do have an 's' in the plural, but that's because the 'group' or 'stuff' is what is pluralised.
|link comment||answered Jul 27 '11 at 15:43 Siân Harris Expert|
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