28. Black Walnuts
image source: sweetbeegarden.com
If you let your dog run around outside, like in the backyard or on your property, be careful that there’s no black walnuts laying about.
Fresh black walnuts fallen from a tree will not pose any harm to your dog, but they can become toxic once they begin decomposition.
Decomposing black walnuts grow mold that can cause seizures, so make sure to be aware of any black walnut trees on your property.
