Blueberries contain antioxidants, fiber, and other phytonutrients beneficial to a dog's general health. They do not contain substances toxic to dogs found in chocolate or raisins. So, yes, it is safe to give a dog blueberries--but only in moderation.
Limit the number of blueberries a dog eats to a small handful every few days as a treat. The problem with allowing a dog to eat as many blueberries as they want involves their gastrointestinal system. Diarrhea, an upset stomach, and vomiting are symptoms that a dog may have eaten too many blueberries.

This site offers information designed for educational purposes only. The information on this Website is not intended to be comprehensive, nor does it constitute advice or our recommendation in any way. We attempt to ensure that the content is current and accurate but we do not guarantee its currency and accuracy. You should carry out your own research and/or seek your own advice before acting or relying on any of the information on this Website.