16. Celery – This is an excellent resource to improve your dog’s heart health and may prevent cancer. Celery is rich in calcium, potassium, phosphorous, sodium, iron and vitamins A, B and C. The phytochemical 3-n-butyl phthalide, which gives celery its signature taste and smell, is a powerful tumor-fighting agent. Celery is also reputed to reduce nervousness in animals and act as an acid neutralizer.
17. Green Beans – These are low calorie and nutritious, which is a win-win for your dog. Plus, he gets a boost of vitamins A, C and K, calcium, copper, fiber, folic acid, iron, niacin, manganese, potassium, riboflavin and thiamine, as well as beta-carotene. Did we mention the omega-3 fatty acids? You simply cannot go wrong with feeding your dog fresh green beans.
18. Peas – These little green veggies contain thiamine, phosphorous and potassium, and can be added to your dog’s regular food for an added boost of nutrition.
19. Zucchini – An excellent source of calcium, potassium, beta-carotene and folate. Try grating some raw zucchini over your dog’s dry food for an extra-crunchy boost.
20. Summer squash – This summer staple is great for the digestive system. If your dog is going through a bout of constipation, feed him some of your fresh summer squash.
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Source: i Love Dogs
