Onions are toxic to our dogs and should never be included in their diet, regardless of whether they are raw, cooked, fried or powdered. Other types of onions from the Allium family such as green onions, chives, and red, white, yellow, and sweet onions should also be avoided.
Additionally, many processed and prepared human foods often contain onion or onion-derived ingredients, so it's essential to steer clear of giving your dog snacks, soups, or seasonings that might contain onion in any form.