Yes. Carrots contain many nutrients including beta carotene, vitamin A, potassium, magnesium, phosphorus, iron, zinc, copper, manganese, folate, niacin, pantothenic acid, riboflavin, and vitamin B6. They also provide fiber, which helps keep your dog's digestive system healthy. To make carrot dog treats, first wash the carrots thoroughly. Peel the carrots and cut them into small chunks. Spread the carrots evenly across a cookie sheet lined with parchment paper. Set the cookie sheet in an oven set at 120 degrees Fahrenheit for 6 hours. Turn the oven off and leave the carrots there overnight. The next day, you can store the carrots in airtight containers or resealable bags.