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Blue Buffalo Longevity Dog Food receives the Advisor’s second-highest tier rating of 4 stars.
The Blue Buffalo Longevity product line includes three dry dog foods, two claimed to meet AAFCO nutrient profiles for adult maintenance and one for growth (puppy formula).
The following is a list of recipes available at the time of this review.
- Blue Buffalo Longevity for Adults
- Blue Buffalo Longevity for Puppies (4.5 stars)
- Blue Buffalo Longevity for Mature Dogs (3.5 stars)
Blue Buffalo Longevity for Adults was selected to represent the other products in the line for this review.
Blue Buffalo Longevity Adult
Dry Dog Food
Estimated Dry Matter Nutrient Content
Ingredients: Deboned whitefish, menhaden fish meal, whole ground brown rice, whole ground barley, oatmeal, peas, egg, rice bran, natural flavor, chicken fat (preserved with mixed tocopherols and citric acid), potatoes, oat bran, carrots, spinach, broccoli, tomatoes (source of lycopene), apples, blueberries, cranberries, glucosamine hydrochloride, flaxseed (source of omega 3 fatty acids), barley grass, turmeric, dried kelp, Yucca schidigera extract, alfalfa, parsley, garlic, sunflower oil (source of omega 6 fatty acids), fish oil (source of omega 3 fatty acids), l-carnitine, l-lysine, taurine, oil of rosemary, dried chicory root, dicalcium phosphate, calcium carbonate, beta carotene, vitamin A supplement, thiamine mononitrate (vitamin B1), riboflavin (vitamin B2), niacin (vitamin B3), d-calcium pantothenate (vitamin B5), pyridoxine hydrochloride (vitamin B6), biotin (vitamin B7), folic acid (vitamin B9), vitamin B12 supplement, calcium ascorbate (source of vitamin C), vitamin D3 supplement, vitamin E supplement, iron amino acid chelate, zinc amino acid chelate, manganese amino acid chelate, copper amino acid chelate, choline chloride, sodium selenite, calcium iodate, salt, caramel, dried yeast (source of Saccharomyces cerevisiae), dried Lactobacillus acidophilus fermentation product, dried Bacillus subtilis fermentation product, dried Enterococcus faecium fermentation product
Fiber (estimated dry matter content) = 5%
Red denotes controversial item
|Estimated Nutrient Content|
|Dry Matter Basis||27%||12%||53%|
|Calorie Weighted Basis||24%||27%||49%|
The first ingredient in this dog food is whitefish, a marine or freshwater species native to Canada and the California coast.
This item is typically sourced from clean, undecomposed whole fish and fish cuttings of commercial fish operations.1
Although it is a quality item, raw fish contains about 80% water. After cooking, most of that moisture is lost, reducing the meat content to just a fraction of its original weight.
After processing, this item would probably account for a smaller part of the total content of the finished product.
The second ingredient is menhaden fish meal. Because it is considered a meat concentrate, fish meal contains almost 300% more protein than fresh fish itself.
Menhaden are small ocean fish related to herring. They’re rich in protein and omega-3 fatty acids. What’s more, in their mid-depth habitat, menhaden are not exposed to mercury contamination as can be typical with deep water species.
Fish meal is typically obtained from the “clean, dried, ground tissue of undecomposed whole fish and fish cuttings” of commercial fish operations.2
Unfortunately, the controversial chemical ethoxyquin is frequently used as a preservative in fish meals.
But because it’s usually added to the raw fish before processing, the chemical does not have to be reported to consumers.
We find no public assurances from the company this product is ethoxyquin-free.
Without knowing more, and based upon this fish meal’s location on the list of ingredients, we would expect to find at least a trace of ethoxyquin in this product.
The third ingredient is brown rice, a complex carbohydrate that (once cooked) can be fairly easy to digest. However, aside from its natural energy content, rice is of only modest nutritional value to a dog.
The fourth ingredient is barley. Barley is a starchy carbohydrate supplying fiber and other healthy nutrients. However, aside from its energy content, this cereal grain is of only modest nutritional value to a dog.
The fifth ingredient is oatmeal, a whole-grain product made from coarsely ground oats. Oatmeal is naturally rich in B-vitamins, dietary fiber and can be (depending upon its level of purity) gluten-free.
The sixth ingredient is peas. Peas are a quality source of carbohydrates. And like all legumes, they’re rich in natural fiber.
However, peas contain about 25% protein, a factor that must be considered when judging the meat content of this dog food.
The seventh ingredient is eggs. Eggs are easy to digest and have an exceptionally high biological value.
The eighth ingredient is rice bran, a healthy by-product of milling whole grain rice. The bran is the fiber-rich outer layer of the grain containing starch, protein, fat as well as vitamins and minerals.
After the natural flavor, we find chicken fat. Chicken fat is obtained from rendering chicken, a process similar to making soup in which the fat itself is skimmed from the surface of the liquid.
Chicken fat is high in linoleic acid, an omega-6 fatty acid essential for life. Although it doesn’t sound very appetizing, chicken fat is actually a quality ingredient.
From here, the list goes on to include a number of other items.
But to be realistic, ingredients located this far down the list (other than nutritional supplements) are not likely to affect the overall rating of this product.
With six notable exceptions…
First, flaxseed is one of the best plant sources of healthy omega-3 fatty acids. Provided they’ve first been ground into a meal, flax seeds are also rich in soluble fiber.
However, flaxseed contains about 19% protein, a factor that must be considered when judging the actual meat content of this dog food.
Next, garlic can be a controversial item. Although most experts favor the ingredient for its numerous health benefits, garlic (in rare cases) has been linked to Heinz body anemia in dogs.3
However, the limited professional literature we surveyed provided no definitive warnings regarding the use of garlic — especially when used in small amounts (as it likely is here).
In addition, sunflower oil is nutritionally similar to safflower oil. Since these oils are high in omega-6 fatty acids and contain no omega-3’s, they’re considered less nutritious than canola or flaxseed oils.
Sunflower oil is notable for its resistance to heat damage during cooking.
There are several different types of sunflower oil, some better than others. Without knowing more, it’s impossible to judge the quality of this ingredient.
Next, chicory root is rich in inulin, a starch-like compound made up of repeating units of carbohydrates and found in certain roots and tubers.
Not only is inulin a natural source of soluble dietary fiber, it’s also a prebiotic used to promote the growth of healthy bacteria in a dog’s digestive tract.
In addition, caramel is a coloring agent made by caramelizing carbohydrates. It’s used by pet food manufacturers to impart a golden brown tint to the finished product.
Even though caramel is considered safe by the FDA, we’re always disappointed to find any added coloring in a pet food.
That’s because coloring is used to make the product more appealing to humans — not your dog. After all, do you really think your dog cares what color his food is?
And lastly, this food also contains chelated minerals, minerals that have been chemically attached to protein. This makes them easier to absorb. Chelated minerals are usually found in better dog foods.
Blue Buffalo Longevity Dog Food
The Bottom Line
Judging by its ingredients alone, Blue Buffalo Longevity Dog Food looks like an above average dry product.
But ingredient quality by itself cannot tell the whole story. We still need to estimate the product’s meat content before determining a final rating.
As a group, the brand features an average protein content of 27% and a mean fat level of 12%. Together, these figures suggest a carbohydrate content of 53% for the overall product line.
And a fat-to-protein ratio of about 45%.
Near-average protein. Below-average fat. And above-average carbs when compared to a typical dry dog food.
When you consider the protein-boosting effect of the peas and flaxseed, this looks like the profile of a kibble containing a moderate amount of meat.
Blue Buffalo Longevity Dog Food is a plant-based kibble using a moderate amount of whitefish and menhaden fish meal as its main sources of animal protein, thus earning the brand 4 stars.
Please note certain recipes are sometimes given a higher or lower rating based upon our estimate of their total meat content.
Those looking for a higher-grade kibble from the same company may want to check out our review of Blue Buffalo Wilderness.
Important FDA Alert
The FDA has announced it is investigating a potential connection between grain-free diets and a type of canine heart disease known as dilated cardiomyopathy. Click here for details.
A Final Word
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Notes and Updates
04/22/2015 Last Update
- Adapted by The Dog Food Advisor from the official definition of other fish ingredients as published by the Association of American Feed Control Officials ↩
- Association of American Feed Control Officials ↩
- Yamato et al, Heinz Body hemolytic anemia with eccentrocytosis from ingestion of Chinese chive (Allium tuberosum) and garlic (Allium sativum) in a dog, Journal of the American Animal Hospital Association 41:68-73 (2005) ↩