Why is my dog not eating breakfast and throwing up foamy grass?
Hello, and thanks for using PetCoach! There could be several reasons for vomiting just in the morning, common causes would include dietary intolerance (unlikely if Falkor has been on Nutro for a while), dietary indiscretion (eating something he shouldn't), food allergy, intestinal parasites, bilious vomiting syndrome, among a few less common things. He definitely needs a thorough examination with a vet, and if he starts having diarrhea or becomes lethargic, you should see if the vet can fit you in sooner than Friday. In the meantime, you can see if changing up his food routines slightly to help with possible bilious vomiting syndrome. Feed Falkor a small meal right before bedtime, and give him breakfast first thing when he wakes up. We are trying to limit the amount of time he has an empty stomach at night.
After examination and routine testing (like intestinal parasite screening, bloodwork, or xx-rays) to rule out other causes of vomiting, your vet may prescribe an antacid, medications to coat an upset stomach, or medications to help move things out of the stomach quicker in an attempt to manage the vomiting.
I hope you have found this information helpful. Here is some more info on vomiting in dogs:
http://www.petmd.com/blogs/nutritionnuggets/dr-coates/2014/june/feeding-dog-vomits-every-day-31825
https://www.petcoach.co/article/most-common-causes-of-chronic-vomiting-in-dogs/
https://www.petcoach.co/article/how-to-deal-with-chronic-vomiting-in-dogs/
Updated on September 23rd, 2025