Not wanting to eat

My baby is 5 months and he's always been a hungry boy! He still is but he shows no interest in his food, only has interest in treats and fruits or when his food is mixed with treats (even when it's just a tiny bit of it), I don't know what happened for him to suddenly loose interest in his food, he's still excited when it's time to eat and he's still very hungry. Idk what to do, can ya'll help me?

My baby is 5 months and he's always been a hungry boy! He still is but he shows no interest in his food, only has interest in treats and fruits or when his food is mixed with treats (even when it's just a tiny bit of it), I don't know what happened for him to suddenly loose interest in his food, he's still excited when it's time to eat and he's still very hungry. Idk what to do, can ya'll help me?