Dogs are prone to developing pica, a condition known for eating all sorts of non-food items. This can lead to intestinal blockage, and have your dog throwing up yellow bile.
Allergic reactions to certain food usually show up immediately upon consumption. Besides vomiting yellow foam, a dog can experience heavy breathing and rashes.
Long exposure to high temperatures can cause heat stroke and severe problems for your dog. Car rides and high temperatures can only result in dog panting and vomiting.
It’s crucial to keep your dog’s stomach full in order to prevent it from vomiting bile. This can be done by introducing more small meals throughout the day.