You may have heard that the best dog food for one dog may not be the best for another–and for good reason. Age, current weight, and unique needs should all be considered carefully when deciding which product to buy, never mind whether you should buy wet or dry food. Fortunately, these simple pointers will lead you to a healthy dog food that fits perfectly with your canine's lifestyle.

Nutrients to Look For

When matching up a food for your dog, you need to recognize the crucial nutrients all dogs need. Depending on your dog's age, lifestyle and health issues (if any), you may need to increase certain nutrients to help him stay healthy. Your veterinarian will advise you on what to look for if your pooch has special health considerations.

In general, the six types of nutrients every dog food should contain are proteins, carbohydrates, fats, fiber, vitamins and minerals. A dog food that includes quality ingredients and balances the nutrients within those ingredients will put your dog in a position to properly absorb them.

Here is a list of the six nutrients and the ingredients you may see on a dog food label that contain them:

• Protein helps to reinforce your dog's muscles, bones, and skin so they can support the rest of the body. It can be found in ingredients like chicken, salmon, soybean meal, barley, corn or eggs.
• Carbohydrates provide your dog energy throughout the day. Carbs can be found in barley, corn, rice, and sorghum.
• Fats are also needed for energy and healthy skin. They can be found in fish and vegetable oils.
• Fiber is crucial to keep your dog's digestive system operating properly, which is a benefit you both share. Fiber can be found in beet pulp, soybean mill run and cellulose.
• Vitamins your dog needs are included in many of the above ingredients listed above, as well. Eggs are a good source of Vitamins A and E, whereas brown rice is full of potassium; and liver and beef contain iron. When your dog gets the vitamins he needs, his heart, liver, and immune system will work efficiently, helping him to lead a healthier life.
• Minerals are also essential for well-balanced nutrition, and similar to vitamins, may be found in the above ingredients. Minerals like magnesium help support strong bones and teeth, while the right amount of sodium promotes a healthy heart.

Consider His Age

Keep in mind that as your dog goes through different life stages, he'll need certain vitamins and nutrients to help him stay healthy. For example, puppies benefit greatly from B12 in their nutrition, which helps growth and development. Calcium, phosphorus, and vitamin D are also crucial to healthy bones and teeth, so as your puppy goes through his teething phase it is important to make sure his food includes appropriate levels of all three of these vitamins.

Conditional Carbs

Once you're aware of these types of crucial nutrients, it's time to determine which ones your dog may need more of to maintain a healthy lifestyle. This is where your vet can guide you: Does your dog have skin or oral health issues? What about joint problems or signs of being overweight? Talk with your vet for a more comprehensive list of nutrients and ask for recommendations so you can provide him with the proper food.

Cost and Source

Next, think about where you want to buy your dog food–at your veterinarian's office, in a pet store or online. Many quality dog foods offer these three routes of purchase. Start by checking out a few product lines on the manufacturer's website. Not only will the best dog food manufacturers list where they're sold, but many will detail all the ingredients and the nutritional benefits of the food. Some dog food manufacturers and retailer websites offer a filter-and-search option that allows you to find a dog food that fits your dog's age, health needs, and activity level. If you find a food that looks like a perfect fit, see if the pet food manufacturer–or the retailer or veterinarian you plan to buy from–offers any promotional material on that food. Don't let the cost of dog food scare you; a healthy canine comes out of eating a healthy dog food, not just the most expensive one. Many pet food companies offer coupons when you follow them on social media, or on their websites.

Continue to monitor your dog's health and activity level, as your dog's nutritional needs can change over time. If he's showing signs that he needs a change in food, consult with your veterinarian if you are unsure what to choose. The best dog food companies offer a variety of food options that can allow you to transition your dog to a new food without completely disrupting his digestive system.