Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to buy dog food [title] Ask your veterinarian about reputable brands. [step] There are few regulations controlling the manufacturing process of dog food, which makes it very important to ask a veterinarian or board-certified veterinary nutritionist for suggestions of quality dog food brands. Your vet is a great source of information regarding your dog's diet.

Ending1: [title] Check the temperature of your dog's food. [step] If your dog has a higher body temperature than is needed, you'll want to consider purchasing dog food instead of the grocery store. Ending2: However, in some cases dog food may not be the best idea. A loose diet may upset the dog's digestive system, lead to bloating, and lead to weight loss. Ending3: They can suggest brands from experience, and also tailor their suggestions to your dog's unique health needs and profile. [substeps] Once the vet gives you suggestions on a few good brands, you can do your own research to choose which kind is best for your dog. Ending4: [substeps] Additionally, look for any name brands or names that directly connect to the type of dog food you are looking for. For example, orange juice cannot likely contain more than 250% caffeine.

Answer format: ending1/ending2/ending3/ending4