Nutro Ultra (Dry)

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Rating: ★★★★☆

Nutro Ultra dry dog food earns the Advisor’s above-average rating of 4 stars.

The Nutro Ultra product line includes seven dry dog foods… five meeting AAFCO nutrient profiles for maintenance, one for growth (Large Breed Puppy) and one for all life stages (Puppy).

  • Nutro Ultra Adult
  • Nutro Ultra Puppy
  • Nutro Ultra Senior
  • Nutro Ultra Small Breed Adult
  • Nutro Ultra Large Breed Adult
  • Nutro Ultra Large Breed Puppy
  • Nutro Ultra Weight Management (3 stars)

Nutro Ultra Adult Dog Food was selected to represent the others in the line for this review.

Nutro Ultra Adult

Dry Dog Food

Estimated Dry Matter Nutrient Content

Protein = 28% | Fat = 14% | Carbs = 50%

Ingredients: Chicken, chicken meal, whole brown rice, ground rice, rice bran, chicken fat (preserved with mixed tocopherols), lamb meal, salmon meal, natural flavors, flaxseed, sunflower oil (preserved with mixed tocopherols), dried plain beet pulp, rolled oats, potassium chloride, egg product, tomato pomace, dried pomegranate, dried blueberry, dried cranberry, dried pumpkin, dried spinach, dried carrot, salt, choline chloride, vitamin E supplement, zinc sulfate, zinc proteinate, ferrous sulfate, l-ascorbyl-2-polyphosphate (source of vitamin C), l-carnitine, biotin, niacin supplement, potassium iodide, copper proteinate, calcium pantothenate, vitamin B12 supplement, riboflavin supplement (source of vitamin B2), vitamin A supplement, beta carotene, pyridoxine hydrochloride (source of vitamin B6), thiamine mononitrate (source of vitamin B1), sodium selenite, manganese proteinate, manganous oxide, vitamin D3 supplement, folic acid

Fiber (estimated dry matter content) = 4.4%

Red items when present indicate controversial ingredients

Estimated Nutrient Content
MethodProteinFatCarbs
Guaranteed Analysis25%13%NA
Dry Matter Basis28%14%50%
Calorie Weighted Basis25%31%44%

The first ingredient in this dog food lists chicken. Although it is a quality item, raw chicken 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.

Which brings us to chicken meal… the second and (more likely) the dominant meat ingredient in this recipe.

Chicken meal is considered a meat concentrate and contains nearly 300% more protein than fresh chicken.

The third item is brown rice. Brown rice is a quality ingredient… a complex carbohydrate that (once cooked) is fairly easy to digest.

After ground rice, we note the inclusion of rice bran… a healthy by-product of rice milling. Though not as nutritionally complete as whole grain rice, brans are still unusually rich in fiber, protein, vitamins and minerals.

Please notice the last three items are all rice ingredients. Even though they’re a mixture of decent quality grains, there’s a more important issue to consider here…

The controversial practice of ingredient splitting.

If you were to combine all three rice items, the rice would then occupy a higher position on the list… almost certainly nudging out the chicken to become the real first ingredient in the dog food.

The sixth ingredient is 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.

The next two ingredients include lamb and salmon meals. Like chicken meal, both items are considered protein-rich meat concentrate

fish meal. Because it is considered a meat concentrate, fish meal contains almost 300% more protein than fresh fish itself.

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 only a trace of ethoxyquin in this product.

After the natural flavor, we find flaxseed… 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.

Beet pulp is a controversial ingredient… a high fiber by-product of sugar beet processing.

Some denounce beet pulp as an inexpensive filler while others cite its outstanding intestinal health and blood sugar benefits.

We only call your attention here to the controversy and believe the inclusion of beet pulp in reasonable amounts in most dog foods is entirely acceptable.

Tomato pomace is a controversial ingredient… a by-product remaining after processing tomatoes into juice, soup and ketchup.

Many praise tomato pomace for its high fiber and nutrient content… while others scorn it as an inexpensive pet food filler.

Just the same, there’s probably not enough tomato pomace here to make much of a difference.

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 two notable exceptions

First, we find no mention of probiotics… friendly bacteria applied to the surface of the kibble after processing.

And lastly, this food also contains chelated mineralsminerals that have been chemically attached to protein. This makes them easier to absorb. Chelated minerals are usually found in better dog foods.

Nutro Ultra Dry Dog Food
The Bottom Line

Judging by its ingredients alone, Nutro Ultra looks to be an above-average dry dog food.

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.

The dashboard displays a dry matter protein reading of 28%, a fat level of 14% and estimated carbohydrates of about 50%.

Due to its apparently lower meat content, the Weight Management recipe was downgraded to the next lower star category.

As a group, the brand features an average protein content of 28% and a mean fat level of 14%. Together, these figures suggest a carbohydrate content of 50% for the overall product line.

Average protein. Below-average fat. And near-average carbs when compared to a typical dry dog food.

Free of any plant-based protein boosters, this looks like the profile of a kibble containing a moderate amount of meat.

Bottom line?

Nutro Ultra is a rice-based dry dog food using a moderate amount of chicken as its main source of animal protein… thus earning the brand 4 stars.

Highly recommended.

A Final Word

This review is designed to help you make a more informed decision when buying dog food. However, our rating system is not intended to suggest feeding a particular product will result in specific health benefits for your pet.

For a better understanding of how we analyzed this product, please be sure to read our article, “The Problem with Dog Food Reviews

Remember, no dog food can possibly be appropriate for every life stage, lifestyle or health condition. So, choose wisely. And when in doubt consult a veterinarian for help.

Have an opinion about this dog food… or maybe the review itself? Please know… we welcome your comments.

Notes

12/19/2009 Original review
05/28/2010 Review updated
07/21/2010 Review updated
12/27/2010 Review updated
04/04/2011 Updated to more appropriate 3.5 stars
09/04/2011 Updated to 4 stars (new recipe, menadione removed)
09/04/2011 Last Update

Dog Food Advisor IconThe Dog Food Advisor publishes independent reviews to help pet owners make better choices when shopping for dog food.


  • Ricky

    Why is the Weight Management rated lower than the others ?
    I feed my Cocker Spaniel it and he loves it .

  • Gordon

    Kenny – Just so you know, a lot of the commercial made raw formulas are completely safe and nutritious for cats to eat as well. There isn’t much difference in the protein to carb ratio variance, and even some kibbles can be fed to cats that especially included the taurine supplement, albeit the taurine anf other similar additives, come from China.

  • sandy

    Kenny,

    Hopefully your cat is eating cat food since they require more protein than dog foods contain!! Unless its Epigen. Epigen is actually dog/cat food. Says on the package.

  • http://bestpuppyfoodblog.com Kenny

    I just started my husky shepard mix on nutra and after trying a number of other brands I finally found one my dog likes!!! Just like Chris I find my cats like it as well. Found that out after I left the bag on the table and heard something fall over and found my cat in the bag

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Jason… Because of the company’s decision to remove the menadione in this recipe, Nutro Ultra (with the exception of the 3-star Weight Management recipe) has been upgraded to 4 stars. Hope this helps.

  • Jason

    So…. is this a 4 star food or a 3.5 star food?

  • Shawna

    Excess food, of any kind, can lead to weight gain as can excess carbohydrates as they increase the insulin and leptin response and are stored, if fed in excess, as fat. Excess protein can be stored as fat but is also necessary for proper muscle as well as every other aspect of a healthy body.

    As a high protein (grain free) raw feeder of toy breed dogs —- I can tell you with absolute certainty that high protein diets do not cause weight gain. In fact, my foster dog came in weighing 29 pounds (should weigh about 12). She is now down to 14 pounds eating a high protein raw mixed with higher protein kibble food – Evo, Orijen etc (I rotate foods).

    Lew Olson PhD in Natural Nutrition — “Too Much Protein?

    The anatomy and digestive process of dogs are designed to most easily digest animal fat and protein. Dogs perform best on animal based products. Studies have shown you cannot feed a dog too much protein. (For more information about this, you can review the past newsletter on protein at http://www.b-naturals.com/newsletter/protein/.)”
    http://www.b-naturals.com/newsletter/dogs-and-protein/

  • Chris

    I wanted to add a note: I have noticed that many people are obsessed with buying the food with the highest protein content. After talking to several vets and doing some research, it seems clear at if your dog in NOT a “working” dog i.e. pulling a dog-sled or herding cattle, then a protein content of 25-30% is fine. BlueBuffalo wilderness has a protein content of about 36% if i can remember, its very high and can result in weight gain unless you really work your dog. I have a very active dog who he gets regular exercise and I’m very happy with Ulta’s 28% protein. He seems happy too, and digests it well.

  • Chris

    I just decided on Nutro Ulta Puppy for my rescue mix (collie / husky / sharpei… maybe / Shepard). I wanted to mention that the new Ultra that i bought does not have Vitamin K, or soybean oil – so that eliminates 2 of the 4 controversial ingredients.

    I decided on Ulta after testing blue buffalo, which resulted in very soft stool for the poor pooch.

    He loves this food, and so does out cat, incidentally. I havent noticed any issues with bad gas and the stool seems solid for now.

    This seems like a great product, and is comparable in price with other quality foods.

  • Debbie Perkins

    I wrote the Nutro company yesterday about the ingredient menadione, since I was considering switching to Nutro. We had previously used Nutro Natural Balance for years but was interested in the Nutro Ultra line. Here’s what they said, just as info:

    Thank you for taking the time to contact The Nutro Company.

    We are currently in the process of phasing this ingredient out of all of our foods. Nutro Ultra and Nutro Max Dog foods have been reformulated without this ingredient, and we have quite a few in the Nutro Natural Choice line that do not contain this ingredient.

    Nutro Natural Choice Small Breed Adult
    Nutro Natural Choice Small Breed Puppy
    Nutro Natural Choice Grain-Free Venison Meal & Potato Nutro Natural Choice Grain-Free Turkey Meal & Potato Nutro Natural Choice Grain-Free Large Breed Lamb & Potato And the entire Nutro Natural Choice Toy Breed line, which will be available in stores in September.

  • http://brotherscomplete.com Richard Darlington

    Walter J

    We have at least 60 or more bulldog customers (both American and French bulldogs) at our store and they definitely seem to be more sensitive to grains and potatoes than other breeds. I would recommend you try a 5 star rated grain free food and transition slowly over at least a week by adding a bit more of the new food each day. Do not be discouraged if you get a loose stool for a few days because your dogs pancreas is going to be secreting extra enzymes until it can figure out just what it needs to handle the new food efficiently.

    Also sometimes it will get a bit worse before it gets better if Candida fungus is involved because as the Candida dies back it releases some toxins…but they will eventually be eliminated by the liver and kidneys and you should see the symptoms improve in a few weeks.

    If you want to go all out move to a food that has no grain or potato. This has resolved at least 90% of the skin related problems we have encountered in the dogs we’ve seen change diets over the years. Moving to a grain free food should help for at least 6 months but if the problems begin to come back then get a grain and potato free food.

    Some times adding a little pumpkin from a can (a tablespoon or two) to the kibble will help with the temporary loose stool or prevent it all together.

  • Jonathan

    Walter, Ultra is a decent food. But if you really want a higher meat content, there is nothing in the Nutro line that is very high. You’ll have to look at the list of 5-star foods and see if there are any of those available where you shop.

  • Walter J.

    I own an American Bulldog who is currently eating Nutro Ultra. I was really hoping to learn more about other people’s experiences with that particular food, but it seems that we all got stuck on the thread regarding issues with Blue Buffalo. My dog likes Nutro okay, but I just read about the need for dogs to eat food with as much meat as possible. I only want to feed him the best, so any help would be greatly appreciated.

  • melissa

    Richard-

    If you are transitioning between two very similar products, you typically have less issues. As Bob K said, if you ate only one type of food for months or years, you can bet suddenly a meal of spicy tacos would throw your digestive system for a loop. Dogs are no different-eating one thing day in and day out seems to conditions the system to that particular food source. I ran into mucho transition issues when I fed only one food for years-Now, I am amazed that by rotating, the dogs digestive systems seem to handle foods that they could not before, and introducing most new foods is not a big deal.

    I have three dogs that came to me with pancreatitis issues-one of which also has Lupus and is a Lymphosarcoma survivor of two years from diagnosis. As long as I keep the fat levels within a certain range, no stomach upset even for them. Prior to rotation, the slighest bit of meat or kibble would land them in the hospital on IV’s.

  • Bob K

    Richard J beard – A few items to ponder
    1.) You aren’t a dog
    2.) You do not eat a steady diet of the same stuff often for a few months.
    3.) If all of a sudden you switched to an all Vegetarian diet I suspect you would have loose stools.
    4.) Much depends on the specific dog
    5.) Much depends to what food the dog is on and what you are switching to based on ingredients.
    6.) Switching from Diamond Natural Chicken and Rice to Kirkland Chicken and Rice would be an easy transition compared to Taste of the Wild Salmon or Buffalo based foods.

    Hope this helps – No one easy answer

  • Richard J breard

    I don’t understand this slow transition thing. I have never done it with any of my dogs and never had a problem. When you go out to eat in a different resturant does the waiter ask you if you brought your last meal with you so he can slowly change you over?

  • Carol W

    Our 9 year old weimaraner has never been a picky eater but has always had a sensitive digestive system. Even anesthesia for spaying made her vomit for a couple of days. She was on Pacific Wild and doing so-so, but with intermittent spells of diarrhea..that soon was accompanied by vomiting. A full-body xray was done, as well as all blood work. She had no bloat, no signs of anything that would explain it. In a moment of frustration I switched her to a lower-grade food, over the period of 8 days. At first it seemed to solve the problem. But after being on the lower quality food for about 3 months, she developed diarrhea that just wouldn’t go away. I decided that a high grade food might change things so I bought Blue Buffalo. I begin at 75/25 ratio, and by the end of the week we were at 25/75 and the day we went to 3/4 Blue, she began to tank. Diarrhea like I’ve never seen, even in her. Horrible gas, you can hear her tummy from across the room. Today, her energy level and general wellbeing is down and I knew I had to do something. I started her back on the Zantac (which was originaly prescribed by her vet, along with Kaopectate) and the Kaopectate, went back to 75/25 with the old food and carried the rest of the Blue Buffalo BACK to the store. I work at our local no-kill shelter and all the pets, save those with particular medical problems, are on Nutro. So I bought her a bag of Nutro for Sensitive Stomachs. I just fed her 75/25 with her old, low grade food and she’s sleeping instead of asking to go out. Here’s praying. Blue is good food but it is NOT for every dog. It has made mine very sick.

  • Bob K

    Erin – Glad you are having success with this food but for what you are paying, you dog could be enjoying a 5 star food and have more money in your pocket. Cleansing at a 5 week mark is a big story for sure from the BB rep. Dog food transition should be a week or two if you are switching to a similar food such as chicken and rice to chicken and rice from another brand. Some 5 star foods that may be less expensive include: Taste of the Wild, Canidae Grain-Free, California Natural Grain-Free, Before Grain, Nature’s Logic, Acana Grain-Free, Before Grain, Canidae Grain-Free

  • Erin

    Just thought I’d chime in here. I began switching my 7-month old doberman pinscher over to Blue Buffalo, from Purina Dog Chow (which his breeder had fed). I thought ANYTHING would be better than Dog Chow, but had heard great things about Blue, and read some terrific reviews. I can’t comment as to the “richness” but I know that I switched him extremely slowly (at the five-week mark, we were at 75% Blue Buffalo/25%Dog Chow). Even that slowly, he just absolutely could not tolerate it. He had terrible diarrhea, almost constantly. We were taking him out multiple, multiple times a day, and he still had accidents in the house. The Blue Buffalo rep in the store told me it can sometimes have a “cleansing effect” because of all the fruits and veggies, and that is was “very rich” but that if switched gradually, dogs usually adjust. Not mine. So once I put him back on Dog Chow, I did some more research and decided to try Nutro Ultra. Again, I’m switching over slowly, but not quite as slowly as with the Blue Buffalo. He’s doing awesome. No reactions, no diarrhea. He LOVES the taste, and will often pick out the Dog Chow and spit it out on the floor (can’t blame him). So overall, we’re very happy with this food. I feel it’s nutritious enough that I’m not short-changing him, yet it’s still affordable.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Tricia… Our concerns here about soy have nothing to do with the thyroid issue but are more related to their use by the pet food industry as an inferior substitute for quality meat-based protein.

    Just the same, in humans, soy has been linked to a decreased ability to absorb synthetic thyroid hormone. And whether or not soy has a direct relationship with thyroid function appears to be a subject of controversy.

    For example, one recent study of dogs being fed high concentrations of soy extracts did appear to demonstrate some changes on an animal’s endocrine (hormone) function. But that evidence was inconclusive and only suggested further study.

    Based upon the current literature alone, it would seem (to me) a bit premature to sweepingly condemn soy as a major cause of thyroid dysfunction. If you still have any personal doubts, simply avoid dog foods that contain soy ingredients.

    Unfortunately, since I’m not a veterinarian, it would be inappropriate for me to provide more specific health advice regarding this issue. Wish I could be more help.

  • Tricia

    I am curious about the reason for the soy concern. I have a thyroid problem and was told it was likely caused by an over consumption of soy products (being a vegetarian). I was told to keep it out of my dog food because it can cause thyroid problems in dogs as well. My mother’s dog has hypothyroidism too and he was raised on Science Diet which contains soy (he is now on Canidae which does not contain soy). Have you heard of this or has even been enough research to make a judgment?

  • Jonathan

    Holly, some dogs do react differently to different foods. But calling something rich that contains and average amount of fat is silly. Blue has 3% more fat that Ultra. 3%. Nothing earth-shattering. There is no way one could consider 13% fine and 16% rich. Which Blue were you feeding your dog when he had this problem anyways? That could be the bigger difference in this discussion more than the brand itself.

  • holly

    My dog got colitis from being on blue buffalo my vet had also said it was way to rich for his stomach i went to a differnt vet to clarify that he did have coloitis and the vet said yes and that food is very rich so i he is stupid some dogs react differnt to a food like my chihuahua did he was on i.d food to clear his poopy issue up and now he is on nutro ultra and doing great!

  • Jonathan

    It’s funny that you refer to Blue as “too rich”. I actually hear this at the store sometimes too. But what I don’t get is how it’s possibly “too rich”. Blue life Protection has a fairly average amount of protein and fat, and it’s usually the fat people are referring to when they call it rich.. I don’t know. In any account, you may want to try a different protein of Blue before giving up on the brand. They have a Lamb and oatmeal puppy formula that may be easier for your dog to digest.

  • Andrew

    Jonathan, the breeder we got him from was feeding him diamond dry dog food so I started him on that and yes slowly transitioned over to Blue. I understand that Blue is an excellent food but I’ve heard its a rich food so he probably just couldn’t handle it. I will probably transition to a better quality food when he’s a little older as he’s only 10 weeks old and I don’t want to switch his food too much at this early stage and I’m just happy he has regular stools again.

  • Jonathan

    Andrew, did you slowly transition you dog from his previous food to Blue by starting at 20% new 70% old and gradually increasing the Blue over a two week period? And what were you transitioning from?

  • Andrew

    I started feeding my dog blue buffalo and he immediately got diarea so I started feeding him boiled chicken and rice and it cleared up within a few days. He is now on nutro ultra and doing great. I understand that all dogs are different and what works for some won’t always work for others but I will never again feed any dog of mine blue buffalo

  • http://DogFoodAdvisor.com Mike Sagman

    OK. I’ve made the adjustment. Nutro Ultra is now 3.5 stars (a more realistic rating).

  • Meagan

    Yep thanks for clearing that for me :)

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Meagan… Yes, Nutro Ultra used to be 4 stars. But when I revisited this product line late last year, I decided the menadione combined with the use of corn gluten as a protein booster in some of its recipes merited an adjustment. It’s really a 3.5 star product. But I didn’t have half stars at my disposal until just recently. I may adjust this up just a half star soon. Thanks for the reminder.

  • Meagan

    Mike-Did this use to be rated a 4? I saw one comment that said it was?

  • Cathy

    Heather,

    If you want the best food for your pups, feed raw. The K9Natural website says this about dog food: “The perfect food should be warm, covered in fur and running past a dogs nose.”

    You can review some raw-feeding options at Mike’s link on this website:
    http://www.dogfoodadvisor.com/best-dog-foods/raw-dog-food/

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Heather… Our ratings are based upon the apparent quality and estimated meat content of a dog food’s ingredients. We have no way of knowing how your dogs will respond to this formula over their lifetimes. For comparison, be sure to check out dome of the 4 and 5-star foods, too. That way you’ll feel more confident with your decision. Since all (human and dog) foods have built-in (and unknown) deficiencies. diet rotation tends to diminish their shortcomings. You wouldn’t be committed to feeding the same brand year in and year out.

    For more information, please visit our FAQ page and look for the topic, “Diet Rotation for Dogs”. Hope this helps. Hope this helps.

  • Heather

    We are in the process of welcoming 2 new additions to our family, 2 beautiful English Mastiff pups. I want to be sure that I am giving them these best food that I can so that they grow properly, and I can keep them healthy as they grow into adulthood and their senior years. We are starting them off with Nutro Ultra Holistic Large Breed Puppy food. After reading the reviews I am now wondering if this is a good choice for them. Is this a good food for them? All recommendations are welcome!

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  • Michael

    This is a fantastic site, Mike!

    I’ve been feeding my dogs Kibbles’n'Bits for years, moving them up from Ol’Roy when they started refusing to eat certain kinds of kibble. I knew it wasn’t very good, but I would have expected it to score higher than it did. Wow.

    Armed with all of this information, I ended up getting a bag of this Nutro Ultra Adult to try, because it was the best food I could actually find for sale on the shelf around here. I’m really grateful for having a resource like this available, so I have some idea what I’m looking for, and what I just bought.

    It’s not the best, but it should be better for my dogs than Kibbles’n'Bits anyway. It does seem like I should be getting more for more than twice the price though. It’s pretty disappointing, really, that a bag with so much foofery about how wonderfully splendiferous it is really isn’t offering nearly as much as it wants consumers to think.

  • Tara in Alaska

    Thanks! Will do on the report. And we are coming up on the two week mark on the new food (He was on LB Puppy Science Diet before) his skin looks to be improving with some help from the vet and I have not seen any new red spots or hair loss. I am hopeful. This whole thing has been rather scary. Hank is such a mellow guy, just wants to hang with the goats and I want to make sure he get to do that for a long time to come. Thanks again for the info.

  • http://DogFoodAdvisor.com Mike Sagman

    Hi Tara… The avocado mentioned here is a dried by-product obtained after removing all the oil from the fruit. And avocado products like this can be somewhat controversial.

    Supporters claim the ingredient to be nutrient rich and beneficial to a dog’s skin and coat… while others worry over what are mostly unsubstantiated concerns over potential toxicity.

    These fears appear to originate from a 1984 study in which goats (not dogs) consumed the leaves (not the fruit) of the Guatemalan (not the Mexican) avocado… and became sick.

    Based upon our own review of the literature, it is our opinion that the anxiety over avocado ingredients in dog food (especially in smaller amounts like this) is probably unjustified.

    By the way, regarding ear infections, grain free might be something to consider. For more information, you may wish to check out my report, “Dangerous Canine Diseases Linked to Grains in Dog Food“.

  • Jonathan

    Tara, just an fyi, but the large breed ultra contains corn gluten meal, which could be a problem for a food sensitive dog.

  • Tara in Alaska

    Hi Mike!
    I just found your site and it is pretty darn awesome! (if a bit intimidating for someone who failed high school science) My 1 year old Great Pyrenees Hank just got switched over to the Nutro Ultra LB, because I suspected his ear infections and itchy belly were nutrition related. The vet also suggested switching to a higher quality food. Too soon to tell whether or not it will do the trick, and like I’ve seen you suggest a time or two, a little trial and error may be nessisary. But my real question is, I just noticed that dried Avacado is listed waaay down in the suppliments, and I was always told that Avacado’s are toxic to dogs. Is this true?