Can Dogs Eat... [That]?

Avocados contain persin. It's mildly toxic to dogs but the bigger danger is the giant slippery pit causing intestinal blockage.

Plain peanut butter is fine. The catch is that some 'sugar-free' or 'low-sugar' brands contain xylitol, which causes catastrophic insulin release in dogs.

Dogs can digest dairy worse than humans. Some tolerate it, some get violent diarrhea. Cheese is also calorie-dense — easy to over-treat.

Apple flesh is healthy. Apple seeds contain amygdalin, which releases cyanide when chewed. A few seeds aren't usually dangerous, but it's not worth the risk.

Ripe tomato flesh contains very little solanine. Green/unripe tomatoes, stems, and leaves contain enough to cause real GI and neurological symptoms.

Common grocery store mushrooms (cremini, white, portobello) are safe. Wild mushrooms vary from harmless to fatal — and dogs cannot tell the difference.

Almonds aren't poisonous like macadamia nuts, but they're hard to digest, high in fat (pancreatitis trigger), and shaped exactly like a dog throat.

Plain bread is just empty calories. Raw yeast dough is a true emergency: it expands in the stomach and ferments alcohol.

Spinach contains oxalates, which bind calcium and over time can contribute to kidney stones and damage. Not an emergency, but not a healthy regular addition.

Broccoli contains isothiocyanates, which in large amounts can cause gastric irritation. The florets are worse than the stalks.

Raspberries naturally contain small amounts of xylitol — the same sweetener that's deadly to dogs in larger doses. Occasional fresh raspberries are safe.