Blackberry

Blackberries are a delicious, nutritious treat for humans and dogs alike. They're packed with essential nutrients, vitamins, and fiber, and are relatively low in sugar despite their sweet taste.

While they might be low in sugar, blackberries contain trace amounts of a different sweetener called xylitol which is toxic to dogs. Although a small handful of blackberries might be perfectly fine for a dog without an intolerance, even one or two berries can cause a reaction in a dog who does have a sensitivity.