Hello everyone! I have used this site a lot whenever I have questions about my baby. Max will be 6 months in 5 days!

and he is up to date on all shots and vet visits.
I have searched this site for my issue but I dont know if I am getting all the info I need. My problem with Max is VERY and I mean VERY foul smelling stool and gas. I mean clear the room foul smell! I feed him Natural Balance L.I.D Sweet potato and chicken small breed formula (which I havent come across here so I am doubting my food choice sighh) in quantity of 1/2 cup twice a day.
My vet in NY does not make food recommendations (he doesnt push any brand) he says the important thing is he gets a balanced and complete diet, as long as the food has everything he needs its ok with our Vet. I chose NB on the recommendation of our Houston vet and my sister who works with him.
I have changed the flavor of the food, gradually of course, as if it was a new brand, but I dont know what could be the problem.....I searched on Google also and did come across an article that it could be some type of bacteria but before I run to the vet I wanted to reach out for some advice.
What do you guys think???