Skinny dog - need weight gain

Need advice on my 3 year old schnoodle who is only 7kg. He has always been on raw but he is having 250grams a day which is more than the recommended amount. I am thinking of taking him off the raw but don’t know what to give him

Speak to your vet they will advise what to give him and how to do the swap safely without issues.
Hope you find him something he likes :blush: