We have two nearly two year old cockapoos, a boy and a girl. They've both had good quality raw food (Luna & Me) for every meal since they were puppies and love it (with very few treats, mostly things like carrot etc.).
They eat a large bowl of the raw food in the morning and they are walked around 4 miles every day.
The girl is slim but a healthy weight. The boy is very skinny and poos a lot - probably 7-8 times a day, compared to twice for the girl. We've upped his food but his weight doesn't seem to change, and he always seems hungry. He takes a monthly worming tablet.
Does anyone have any advice on what to do?