Oreo cookies are high in fat, sugar, and calories and excessive consumption of them can lead to many negative health effects, including weight gain and type 2 diabetes.

Are Oreos toxic?

Oreos do contain chocolate, which is why they can be toxic if too many are consumed. Oreos do have real chocolate in them, albeit in small quantities. It is unlikely that your dog will suffer chocolate toxicity by eating a small quantity.

Are Oreos healthy?

Regardless of diet, people will want to have snacks that soothe their cravings. Oreos are a perfect example of an unhealthy vegan snack, because whilst they do not (technically) include dairy products, the ingredients they do include are far from wholesome. It's all processed and “fake”.