# Why Is My Dog Eating Grass and Vomiting Yellow Foam UK? — Quick answer

PETHEALTH+ (https://pethealth.org.uk/uk-pet-questions/why-is-my-dog-eating-grass-yellow-foam-uk): Why Is My Dog Eating Grass and Vomiting Yellow Foam UK? — Quick answer. Grass-eating is usually normal — most dogs are not ill beforehand. Yellow foam often means bile from an empty stomach, especially in the morning. Call your vet if vomiting is repeated, contains blood, or is paired with lethargy, pain, or loss of appetite. A small evening snack may help frequent bilious vomiting.

Source: https://pethealth.org.uk/uk-pet-questions/why-is-my-dog-eating-grass-yellow-foam-uk