She’s never been a big eater.
I also think she’s not keen on dry food - when she came from the breeder we put her on AVA, a mix of dry and wet. She used to basically lick the wet food off the dry and eat some of the kibble.
I then moved her on to Millie’s Wolfheart and even though she does eat, it’s not with gusto. Often she’ll leave her breakfast until much later in the day and then not be hungry for her evening meal. She either ends up eating her evening meal late at night or the following morning. So she does eat her calories but it’s all over the place.
She’s regularly gets flea and worm treatments from the vet, so i don’t expect that to be the issue. The vet agrees that she’s thin but took blood and nothing untoward was evident. She’s not had her first season yet AFAIK, none of the signs yet. She’s happy in herself, plays with the kids, loves going for walks, her poos are nice and firm etc. She’s just so slim, even for a smallish dog - you can feel her hip bones. I just don’t know what to do next.