Should You Withhold Food When a Dog Vomits Yellow Fluid?

Not every dog with yellow vomit should be fasted — it depends on the cause. After-meal vomit with food bits means indigestion and fasting plus probiotics helps; pre-meal or hunger vomit means excess bile and more frequent small meals is better; vomit regardless of food can signal a stomach ulcer and needs a vet. Never fast or medicate blindly.