FWIW, I don’t think three meals a day until he’s about six months is too many meals, and when I had a foster puppy, she would eat more,overall, on three instead of two meals a day, so if you’re wanting him to eat more, the “lunch” meal might help.
Unsolicited .02: try adding just one new supplement or food at a time, give it a couple of weeks, before trying something new, in order to give pup’s tummy a chance to settle and to more easily identify if something is bothering him. Alas, this is from bad experience of me being over-anxious about my foster puppy with “issues” when my adult girls were pretty easy keepers.
Good luck!
.paula d
