I got my lab speyed last year & was advised by vet to cut intake immediately by 25% & monitor & adjust as needed ...
She's not fat , nearly 4yrs ... Guy down street has two labs 5 months younger & speyed also but they look bout 7yrs plus & like barrels on legs .... When first banged into each other walking them he commented on how good looking my pup was .... I stated her age & he just went " oh ...,." And told me his dogs age ... Looking but dismayed .... He's not fat he's not lazy he's out with them regularly
Purely think it's over feeding
I feed my bitch raw diet & cut her from 600grams a day to 400grams a day 200 in morning 200 in evening and it works for her ... I also notice when I come home 5 weeks away from work if she Put on or not so needs monitoring.
But you look at amount you put down & think is that it !?!?!
So for me I could easy see how folk over feed them.
Paul