Like humans, vegetables are always a healthy option for a treat and as a part of a meal. Most dog foods usually have a mix of fruits and vegetables in the ingredients. While some vegetables can be toxic to dogs, like onions; there are many vegetables that are healthy for dogs, like broccoli.
Yes, dogs can eat broccoli. As long as it doesn't have any extra seasonings, oils or other additions mixed with it, dogs can eat broccoli cooked or raw. Any seasonings or additions could irritate your dog's gastrointestinal system.
Like all foods, it should be given in moderation and should only make up about 10% of your dog's daily food intake. Broccoli contains isothiocyanates (an organic compound), which can cause gas, stomach ache, diarrhea, or even vomiting if too much broccoli is consumed.

Health Benefits of Broccoli
Broccoli is a low-calorie, low-fat vegetable that can be a great treat for your dog. It's high in fiber, and is a good source of many vitamins and minerals, including potassium, calcium, and vitamin C. Broccoli boosts the immune system and has also been known to help reduce and prevent cancer.

What other vegetables can dogs eat?
The following vegetables are safe to give to dogs, but always make sure to wash them before you feed them to your dog. Do not give your dog garlic or onions, as these are toxic to dogs.

• Brussel sprouts
• Cabbage
• Cauliflower
• Celery
• Peas
• Carrots
• Asparagus
• Green Beans