3. Xylitol

This one is the silent killer. Xylitol hides in plain sight — sugar-free gum, mints, some peanut butter, toothpaste, even some vitamins. For people, it is fine. For dogs, one of the most dangerous things in your home.
The dog’s body thinks sugar arrived and dumps insulin. But there is no real sugar. Blood sugar crashes within 30 minutes. A few pieces of gum can do this to a medium-sized dog. Flip the peanut butter jar — if you see “xylitol” or “birch sugar,” throw it out. Next up is something you “probably cooked” with this week.