Let's start from the top: cranberries are dominantly found in the United States and Canada, and also in a few other locations across the world. These vine-grown, water-and-sun-harvested fruits hold benefits for you and Fido!
The quick answer is: YES. Dogs can have cranberries.
So the next question is should I add this as part of my dogs diet?
Cranberries contain anti-inflammatory and anti-microbial qualities which can prevent the growth of E. coli, H. pylori, and many other GI related pathogens. The cranberry holds benefits your dog’s pearly whites, proteins found in cranberries inhibit acid production and allow teeth to defend against oral bacteria, which means those doggy kisses we all love will come with fresh breath (well, most of the time).
Cranberries also contain a high level of the antioxidant, polyphenols. Recent findings show that cranberries interact with cellular signaling cascades, regulating the activity of transcription factors and consequently affecting the expression of genes. They have been shown to affect the expression of microRNAs (miRNA). miRNAs are small, noncoding RNAs implicated in the regulation of gene expression that control both physiological and pathological processes such as development and cancer. We never really know if or how we can truly prevent, but making quality choices on behalf of our faithful friends is a great way to do our part in trying.
Just like humans, dogs can contract urinary tract infections. And, just like humans, including cranberries in their diet helps cure or prevent a UTI. Cranberry is a natural cleanser for dogs with urinary problems, but should be consumed in the form of a healthy dog treat, food or supplement containing cranberry, or in the form of cranberry juice meant for human consumption.