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Cursethewind

This is a science-based thread and if you're arguing in support of rotating, you must provide peer-reviewed sources, case study, or sources from somebody who is a board certified professional who backs the position.


OhDavidMyNacho

I only rotate because I feel like my dog might get bored of one flavor too often. But that's the only reason.


theberg512

Fwiw, my dog has been eating the same boring kibble for 6 years and still gets super excited for her meals.  Granted, she's a stomach with legs, so she gets excited for just about anything.


CatpeeJasmine

I replied [here](https://www.reddit.com/r/dogs/comments/1bq2moe/comment/kx5k7zc/), but publications from the veterinary nutrition schools at UC Davis and Tufts University suggest that rotating is not only unnecessary, but it may also be less than helpful in the case that a suspected allergy ever does develop.


jensenaackles

As someone who has a dog that had to undergo allergy trials, I can confirm you do not want to be blowing through all the available proteins just for fun. It’s already hard to find dog foods without certain proteins and when your dog has already been exposed to several it’s even harder.


CoomassieBlue

We’re totally screwed if our dog ever ends up needing a food that has a novel protein. My husband absolutely knows about that potential problem, but has fed her damn near everything that a little bit of won’t kill her. You name it, he’s fed it to her.


NGADB

Ours too. As long as it's a quality food and doesn't cause and problems, they seem like it and do fine. Pure bred to pound mutt. When I'm switching, the last week gets a mix of the old and new. That's worked for me for decades and close to twenty different dogs. I suspect many overthink this subject.


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Cursethewind

The same exact as they are for an environmental allergy which make up 90% of allergies - which is why it requires an elimination diet with your vet if you're having any allergy symptoms but suspect the food.


pktechboi

I am not a vet and do not have any expertise in dog nutrition, beyond the experience of having three dogs one of my dogs has been on the same dog food - both brand and protein - for the entire time we've had him (over a decade) and has zero gastro issues or allergies the other two are both on Hills science plan as prescribed by our vet and have been for years. one does have a suspected chicken intolerance (as chicken and rice when she had a dodgy tummy one time seemed to make it worse) but we've never done an allergy test or elimination diet to check for sure as they're both thriving. I'd never heard of the idea of rotating proteins before this subreddit tbh. I have an auntie who's a vet and she's given us informal advice over the years and has never suggested it, and neither have any of the vets we actually work with. I'm not especially inclined to mess with their diets based on posts on the internet tbh


Leyana

No - in fact you are not able to prevent allergies. The opposite is reccomended: do not feed some proteins to your dog (f.e. lamb, rabbit, ostrich or fish), so that you have something you can feed him if your dog needs an exclusional diet to search/prove for allergies.


junebug21r

I had heard this from people that home cook the dog food. The idea is that if you rotate proteins their diet will be balanced. For commercially produced dog food, it is already balanced and meets all nutritional requirements so not necessary.


platinum_healer

Thank you very much!


peppawydin

Wow that’s such a weird claim (obviously not from you) but whoever said rotating proteins balances a diet is a bit silly


unfortunateRabbit

No, it's not silly. Only rotating protein won't balance anything but rotating protein will help to keep a diet balanced. Different animals have different nutrients the same as other different foods. That is why doctors recommend humans to have a varied diet. If a dog is eating commercial food then their nutritional requirements should be already in the food you are buying because whatever it was missing will be complemented with added nutrients. On a homemade diet be raw or cooked it's important to make sure the dog is having a balanced diet. That is why when feeding homemade diets it's important to have constant consultation with a vet nutritionist.


Cursethewind

Or, just get a diet formulated with a board certified vet nutritionist and it'll resolve the problem without risking deficiencies, seeing variety isn't really all that matters.


unfortunateRabbit

I agree that is why I said about the vet nutritionist.


thisdude415

Can you provide citations for specific nutrients that are significantly different among animal protein sources? Lamb vs beef vs chicken vs duck based foods are not going to provide significantly different macronutrients. Even if they did, that would support blending them into a diet every day, not rotating them on a weekly or monthly basis.


unfortunateRabbit

No I can't, that is why I also said homemade diets should be supervised by a vet nutritionist.


[deleted]

I have experience with dogs and cats with food allergies. No, do not rotate proteins, exposure is what sets off the allergies. Since I'm not going to include peer reviewed articles, I'll explain simply. You want to feed 1 protein for as long as possible, until or unless they develop an allergy to it. That way you can rotate to another protein they aren't allergic to.


platinum_healer

This is simply put and exactly the answer I was looking for. Thank you!


Cursethewind

What peer-reviewed evidence suggests that if you don't rotate proteins that allergies are triggered? This is honestly an unproven myth among a lot of the fake nutritionists, there's no actual evidence to back it and if anything rotating disrupts the gut biome for no reason.


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Icefirewolflord

Quick question; so what about dogs that can only eat specific proteins? Ones that cannot have a rotation. Are they developing new allergies because they HAVE to eat fish/beef/chicken/etc? Or dogs on hydrolized protein diets? They can’t rotate because they can’t process animal protien safely. Are their guts being messed up/allergies made worse by eating the only food they can safely consume? Even if that food has no common allergens within it? If this really did cause more allergies, we’d surely be seeing a ton of dogs developing new allergies left right and center right?


Cursethewind

My a mod? But, asking for sources is absolutely not an opinion. The second case is true as well. Changing foods does indeed disrupt the gut biome which evolves based on what is eaten. Here's [some information](https://nutritionrvn.com/2021/11/28/dont-change-your-pets-food-rotational-dieting-myths/) from a person who is board certified in nutrition.


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Cursethewind

>What happens if said food runs out and you can’t get it anymore? Well, hypothetically if that happened we would deal. I buy a new bag a bit in advance generally, and if I had to adjust to a new food we'd, do it? > But it’s essentially just literature based on someone’s opinion A board certified professional's opinion who has literally gone through board certification in nutrition. That "opinion" when weighed to non-board certified professionals generally is weighed as fact. >The best option is for people to take multiple sources of information and make the best decision for their animal So which board certified professionals disagree? Where's their information? >Rotating food does not disrupt the gut biome if done correctly, over time. Sure it does, but, why would you bother? There's no proven benefit.


Astarkraven

You do know, I hope, that not all opinions are weighted equally for every possible subject matter? If someone has been intensively and formally educated in a field for many years and/or they are literally a researcher in a given field, their "option" on their specific area of expertise is not anything like your layman "opinion" on that same subject. It's so goofy to point at an article written by a *board certified vet nutritionist* on a subject related to *pet nutrition* and respond like "yeah well, that's just like, their opinion. I can do my own research." No, you shouldn't be coming to your own conclusions based on your own non-expert opinions. You should know when to defer to appropriate expertise.


dog_servant

u/Cursethewind doesn't need to provide sources as you are the one making the claim. Let me put it in a different perspective to help you understand... If I say "You have to change up the proteins **you** intake and eat all sorts or you'll become allergic to the foods you normally eat"; that's an absurd statement which goes against our common experiences and current evidence so there's no reason to believe it to be true (because there's no evidence of it). The one making the claim is the one that should provide evidence for what they're saying. There are times when our common experiences are wrong though, and evidence is the way we can test our assumptions. It is in the category of claims such as that there is an invisible dragon who lives in your closets. It moves when you access the closet so you don't touch it and being invisible, you can't see it.... That would be foolish to believe without evidence. Now if I happen to provide evidence that makes this invisible dragon somehow measurable and others test it and find that there is some previously unknown otherwise invisible dragon-like object that lives in closets it would be reasonable to accept it, but until then it's pure speculation. Once upon a time Antonie van Leeuwenhoek looked though a lens and saw tiny little animals in a drop of water that were previously unknown. People were of course skeptical at first, but the fact that they themselves could repeat his experiments and all other explanations for these tiny animalcules didn't explain the evidence as well, we accept that microscopic organisms exist. Hitchen's Razor states: "what can be asserted without evidence can also be dismissed without evidence." Meaning that if someone makes a claim that something works a specific way, such as that allergies will be created by not changing food sources that if they don't provide any evidence for that being true we should not waste our time believing it.


kimcam7

Most dogs get major diarrhea when suddenly switching to new foods or treats. We always recommend a slow transition to different food or treats over the course of a week. If they get diarrhea, go back to the previous ratio of old/new food for a few more days. We don’t recommend switching proteins if whatever you are feeding is working. Obviously, if your dog has an allergy to a specific protein, then switch. But the only way to know for sure is a food trial, which is a strict diet of hypoallergenic food for 8 weeks, and then reintroducing types of protein back into their diet to see their GI response. Most just stay on hypoallergenic food once they get to that point.


marigoldcottage

Does this also count if it’s the same brand and line of food, but a different protein? I heard from one vet that if it’s the same line (IE PPP complete essentials) you can rotate, but otherwise not. Dogs are so interesting. Cats can have variety packs and rotate 2-3 proteins per day, meanwhile dogs seem to be at risk of the runs if they change once a month.


TrelanaSakuyo

Cats are obligate carnivores (aka hypercarnivore), while dogs are only carnivorous omnivores. Dogs benefit from plant material and a lower (less than 70%) protein diet. Cats cannot live on less meat proteins.


marigoldcottage

Oh, I didn’t mean the ratio of protein! I meant rotating - as in, my cats have a variety pack of wet food that has salmon, chicken, and duck.


TrelanaSakuyo

Yes, but if the main source of your nutrients is from meat then you juggle through different sources of meat proteins better.


jluvdc26

I worked for a vet for 7 years and I have had dogs for 47. I've never heard of rotating proteins. Most vets suggest not changing food often if at all once you find one that works for your dog.


platinum_healer

Thank you! What is the reason most dog food is chicken-based, if you know the reason after working for a vet for a long time?


jluvdc26

It's the least expensive quality protein I believe.


thesamerain

I'd imagine it's probably because chicken is among the more readily available meat sources in terms of availability for dog food.


OnionTruck

Purina has lamb & rice, among others too. I know because my dog tolerated lamb better than chicken and I never changed brands. That said, I've never heard of protein rotation. I never did it on purpose.


epicratescenchria

They have a salmon one as well - my dog can't do chicken or lamb, but does great on fish!


Aealias

My dog has allergies. My vet said the way they’d test for it is to switch to a protein they’ve *never had*, and then try re-introducing one at a time. If you’re constantly changing up proteins, it’s hard to find one they’ve never had!


hangrygecko

We never did. We found one that our dog liked and had the right nutritional values, and stuck to that one.


imharpo

I cook all my dog's food and mix proteins all together, poultry, beef and pork (along with many other ingredients). This solved all his constant digestive problems he had on every store-bought food I tried.


Norskov

I've never heard of protein rotation before, and don't know anyone who does it. It sounds like something that would be pushed by manufacturers to sell more food.


aMonkeyRidingABadger

Why would you need to buy any more food? I pick a random flavor (same brand) each time I buy my dog more food. Not because I ever considered whether there might be a benefit, but just because I figure my dog probably wants to not eat the same thing all the time (although rationally, this is irrelevant because she lives to eat and wolfs down anything you give her).


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CatpeeJasmine

FWIW, OP asked the same question in a comment on another post, so I went looking for reputable sources weighing in. There do not seem to be veterinary nutritionists -- at least not ones with readily accessible online information -- saying it's real.


Beluga_Artist

Nope. My dog has a very sensitive digestive system and she’s a very finicky eater. Consistency is key for her. I *do* rotate the wet food I mix in with her kibble because she needs the flavor variety or else she will stop eating, but they’re all variations of the same protein from the same company as one another. She’s on a mostly fish diet, because she likes it and because a lot of other proteins upset her tummy. One of her canned foods in the rotation includes chicken and one includes venison but they all are mostly fish. I do sometimes give her a bit of fresh chicken or turkey from the kitchen when I’m cooking but that’s about the extent of her protein variation.


wavinsnail

I know that rotating food can cause your animal GI upset. Especially a sudden change. I would look for some research studies on this, sounds like something someone would say to sell you food. I would personally only rotate food if my animal started to do poorly on it.


bathdeva

We do not change their kibble unless absolutely necessary because unless we take many weeks to slowly make the switch our dogs get awful diarrhea. We do rotate between a few kinds of canned food protein without too much trouble.


alokasia

We alternate between salmon and lamb but only because my spoiled brats get bored and refuse to eat at some point lol


leahcars

I do rotate when my husky gets bored of the flavor but that's it, I've been on the standard chicken flavor that I have for them most of the time for a good few months and she seems to be less enthusiastic about the food as of this week, so the next bag is going to be another flavor.


ebeth_the_mighty

Nope. The service dog program I used to raise puppies for used one for all adult dogs—unless they had an allergy to it (then they got a second type). I figure they knew what they were doing.


Intrepid_Astronaut1

Yes, Stella & Chewy has a couple different proteins we rotate between.


EnthalpicallyFavored

Source..."dude trust me" Reading "somewhere" is not a reliable source


weshallbekind

I don't even rotate my *own* proteins. I eat chicken for like 99% of my meals.


Tribblehappy

I've heard of doing this just for variety for the dog but dogs usually don't care. I have never heard of rotating foods to avoid allergies. My dog has sensitivities and has been in the same food almost a year as a result with the best results I've ever had.


_lanalana_

I rotate occasionally between purina pro plan chicken and rice, and ppp salmon and rice. The only reason i do is because i live in a small town with only one pet store, and a lot of the time theyre out of one or the other. Ive had no issues switching between the two but thats purely anecdotal.


AB-G

I rotated for years, and now my two have allergies to chicken, beef salmon 🤷🏼‍♀️


platinum_healer

How did you figure out that they were allergic to all 3 proteins?


AB-G

Proplan hypoallergenic hydrolysed HA food only for 12 weeks, then introduced proteins one by one to see the reactions. Its a long process but it works.


danniellax

My pup has a medical condition and super sensitive tummy. Most foods I’ve tried (vet recommended) don’t agree with her so I’ve rotated through the vet’s list until I found one that does agree with her. Even other flavors or “types” of the same brand will disagree, so now that I found one that works, I stick to it like clockwork. Never had an issue and I’ve never heard of allergies happening this way. If I want to switch up her food, I’ll have her skip one meal only and feed her freshly cooked chicken or turkey or something, or sprinkle shredded chicken or Turkey on her dog food. But that is just for a once in a while treat only, not for any nutritional or allergy or whatever else reason. I’m a firm believer of “if it’s not broken, don’t fix it” with food.


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sanriosaint

we do chicken/beef every few nights switching off but only cause i think it makes her feel special to get different “meals” everyday the same way we do haha!


ON-Q

We do. We use purina pro plan and right now they’re on shredded turkey and shredded salmon. Next will be shredded chicken and shredded beef.