PLOS One – Pain In The Bud

It’ll Take More Than Sketchy Surveys To Prove Vegan Cat Food Is OK

“People aren’t ready for us to turn carnivore cats vegan but I’m going to do it,” the CEO of a vegan cat food brand has vowed.

In September of last year, a research paper about feline health was published to the open-access journal PLOS-One, going mostly unnoticed.

The paper’s authors claim their research proves cats fed a “nutritionally complete” vegan diet are not only just as healthy as their meat-eating counterparts, they’re actually less likely to need veterinary visits, less dependent on medication, and more likely to be given a clean bill of health by their veterinarians.

When a company called Wild Earth announced the launch of a new line of vegan cat food this month, the company pointed directly to that paper as proof that “cats fed nutritionally sound vegan diets are healthier overall than those fed meat-based diets,” as the paper’s lead author put it.

Wild Earth CEO Ryan Bethencourt, who does not have a professional background in veterinary medicine or feline nutrition, summed up his goal in a tweet: “People aren’t ready for us to turn carnivore cats vegan but I’m going to do it.”

He painted the new offering as a bold counter to skeptics who say vegan cat food is unhealthy.

“We expect aggressive resistance from the meat industry on the launch of this industry-pioneering vegan cat food, but we know there are A LOT of cat parents looking for healthier plant-based and more sustainable options and we want to be the leader in providing them with that choice,” Bethencourt wrote in a statement.

What he didn’t mention was the fact that the loudest voices opposing “vegan cat food” are animal welfare organizations like the SPCA and Humane Society, as well as veterinarians and nutritionists, the same people who see the consequences of cats who are deprived of meat. Over the years they have reiterated that felines are obligate carnivores who have evolved to get their nutrients from meat, with digestive systems that cannot process most plants, meaning they can’t break them down and derive nutrients from them. That’s why we don’t see servals or leopards foraging for fruit in the wild.

In addition, the announcement did not mention that the 2023 research was funded by ProVeg International, a non-profit dedicated to reducing global meat consumption, weaning people and animals off of meat and onto plant-based food.

That didn’t stop other credulous reports, like one from GreenQueen claiming Wild Earth’s vegan cat food is “built on research proving that felines can be healthy on a vegan diet.”

And that’s exactly the point — the “study” was conceived and published so that advocates of vegan cat food can point to it and say “science says” cats can survive on plants.

Bad data makes for bad science

Extraordinary claims require extraordinary evidence, but the 2023 study did not examine veterinary records or log the results of vet visits over years. Instead, the data was self-reported by participants.

A total of 1,418 people responded to the survey, and only 127 of them said they feed their cats exclusively vegan diets. The claims that their cats get sick less often and do better in veterinary check-ups are based on their subjective assessments and recollections. The paper’s authors don’t know which vegan brands the 127 respondents were giving to their cats, nor do they have information on whether the food was wet or dry, how often the cats were fed, and how much they ate.

wildearthfood — A cat eating Wild Earth’s Unicorn Pate, which is made entirely from plant products. Credit: Wild Earth

One of the metrics cited by the authors is “guardian opinion of more severe illness,” which means arbitrary feedback from people who aren’t experts in veterinary medicine or nutrition.

If including respondent opinions as “data” doesn’t bother you, consider how many people buy products like Airborne, concluding that it works because they didn’t get sick once on a cross-country flight. Airborne, you may recall, was “invented” by a teacher who claimed she figured out how to cure the common cold, something no physician has done in centuries of trying.

Like vegan cat food proponents, Airborne had its own “study” that claimed its efficacy. The company eventually paid out more than $23 million in a class action settlement for its false claims. That’s not to say vegan cat food makers are precisely like Airborne, but pointing to poorly conducted research is a tactic that works because most people won’t go to the effort of finding the study and reading it.

Current global meat consumption is unsustainable, but…

I’m a vegetarian and I’ve seen enough evidence to convince me that the current rate of meat consumption, especially in the first world, is untenable as the global population rises toward its expected 11 billion-plus peak. Those forecasts and the horrors of factory farming are motivation enough to hope human civilization consumes less meat in the future.

But I’m also a guy who loves his cat, and I think if you’re going tell me that my little pal, designed by nature to be an obligate carnivore with a digestive system and body plan that hasn’t significantly changed for ages, can stop eating meat entirely with no deleterious effects — despite the experts saying otherwise — then you really need to show me something better than a self-reported survey paid for by a vegan advocacy group.

Cat with a salad — This cat is not happy. Credit: r/cats(reddit)

Especially when veterinarians who have no financial interest in the pet food industry relate horror stories of their four-legged patients slowly going blind and cats with no other ailments suffering catastrophic consequences, with their organs shutting down because they’re not getting the vital nutrients and proteins they need to survive.

It’s a horrific way to die, and it happens because misguided people think human morals should apply to cats. Notice in the press releases and marketing materials from vegan cat food manufacturers, there’s no mention of what’s in the best interest of cats — it’s all about people making “bold” choices, “disrupting” industries and leading the Earth to a shiny future without meat or suffering.

The truth is, felines cannot synthesize the proteins that are absolutely necessary for their survival, and their digestive systems aren’t evolved for breaking down nutrients from plants. Those are well-established facts, and ignoring them will not change reality. So anyone who claims “vegan cat food” is healthy faces a much bigger task than asking people to take a self-reported survey. A survey paid for by a nonprofit that lobbies for veganism isn’t proof, it’s wishful thinking masquerading as science.

Even if the authors of the paper had the complete veterinary records of the same cats, it would only be one tentative first step toward challenging everything we know about cat nutrition. Questions aren’t settled after one study, especially with such a small data set. Studies must be repeatable, and the difference between correlation and causation isn’t settled with a single well-designed, unimpeachable study, much less a self-reported survey.

When the stakes are the lives, happiness and health of innocent animals, we should be absolutely sure we’re doing right by them.

‘Study’ Claiming Vegan Cats Are Healthier Is A Mockery Of Science

A new paper claims cats are healthier when fed human diets, but the “study” is activism masquerading as science.

We have a science problem in this country.

Tens of millions of adults are scientifically illiterate and cannot articulate a simple definition of the scientific method.

That includes the usual suspects, the people who don’t understand the difference between anecdotes and hard data and say things like “Evolution’s just a theory” or “I don’t believe in science” as if it’s an ideology or religion. It also includes people who like to declare they’re “into science” as if it’s a band or a genre of cinema, and often post articles from sites like “I F—-ing Love Science,” which routinely mistakes natural phenomena like stars, interstellar space and the animal life for “science.”

To quote Sam Kriss’ wonderful essay on the subject: “‘Science’ comes to metonymically refer to the natural world, the object of science; it’s like describing a crime as ‘the police,’ or the ocean as ‘drinking.'”

Science is a formalized method for studying the natural world. That’s it. No more, no less. It isn’t natural phenomena itself, it isn’t something that requires faith. It’s meant to be challenged, with each piece of knowledge hard-won as the scientific community collectively chips away at the vast edifice of things we don’t understand.

The lack of scientific literacy is an indictment of the American education system, but the science and journalism communities are also big contributors. A flawed academic publishing system encourages researchers to make grandiose claims in abstracts and press releases to increase the chances their work will get positive coverage in the press. Few journalists are more scientifically literate than the general population, so they report dubious claims credulously and present individual studies as the final word on subjects instead of tentative first steps in contributing to the corpus of human knowledge.

We see this all the time with reporting on the environmental impact of felines, but it’s certainly not limited to that subject. How many times have you seen your local news anchors or newspapers tout studies saying coffee is healthy, only to report the next week that a new study says coffee isn’t healthy after all?

“Those scientists can’t make up their minds,” they’ll say with a forced chuckle before handing the broadcast over to the weatherman, oblivious to their own failure to provide context.

The effort to rebrand cats as vegans

A new “study,” given prominent play today by major news outlets like Newsweek and aggregators like Drudge, is a classic example of misleading claims given the veneer of scientific authority. The paper claims vegan cats are “healthier” than their meat-eating counterparts. The study — which is actually a survey — says no such thing, and its authors are surely aware that the way it’s been packaged for media consumption will cause confusion, but they’ve gone ahead with it anyway.

The research involved asking 1,369 cat owners to fill out surveys about their cats, the cats’ diets, and their veterinary health histories.

Of those surveyed, there were 123 reported “vegan cats” in their households (about nine percent of the total), and while the abstract and media pitches claim the surveys show vegan cats are healthier, the differences are statistically insignificant. The sample size is too small to draw any conclusions from, and the fact that the details are self-reported means the “data” is worthless: People who put their cats on vegan diets despite knowing felines are obligate carnivores have a vested interest in defending their decision. They’re not impartial, and their survey answers aren’t either. (The paper acknowledges that 91 percent of the respondents are female, and 65 percent are vegans, vegetarians or pescatarians themselves. Those are admirable choices for a human diet, but not for a cat.)

Relying on self-reported “data” also means the research team doesn’t actually know the true veterinary histories of the cats in question, nor does it know anything about the nutrient content of the vegan “cat food” given to the 123 cats who have been deprived of meat. It also cannot account for possibilities like the so-called vegan cats slipping out at night to hunt rodents.

a close up shot of a cat eating — Credit: Engin Akyurt/Pexels

That’s especially important because of “vegan cat food’s” dubious history. Evolution, the brand that popularized the concept, is owned and operated by a man named Eric Weisman, who has been prosecuted and repeatedly sanctioned for misrepresenting himself as a physician, veterinarian and scientist — and continues to misrepresent himself.

Weisman, a chiropractor by trade, racked up a long list of violations in his chosen field before his chiropractor license was pulled, then was charged and convicted criminally for, among other things, practicing veterinary medicine and regular medicine without a license. Weisman’s list of offenses include “treating” cancer patients, “treating” and misdiagnosing animals, and posing as a physician for years, including in advertisements and literature related to his pet food and fake veterinary practices.

Weisman is still calling himself a physician in violation of his plea agreement, and he’s still selling “vegan cat food.” Would anyone in their right mind weigh the claims of that man against the tens of thousands of veterinarians and pet nutritionists who are horrified at the idea of restricting cats to vegan diets?

(In case you’re tempted to think chiropractors are legitimate to begin with, you should know that chiropractor was founded by a lifelong quack who claimed its methods were taught to him by the ghost of a physician, which allegedly appeared to him during a seance. Chiropractor’s founder dodged accountability for years by claiming his practice was a “religion.” The fact that it’s now a $15 billion industry despite its origins, and decades of research that has found no benefit to the practice, illustrates how eager people are to believe just about anything.)

The consequences of bad science

Not only will the “study” and press coverage of it mislead people into believing its claims, it’s another black mark on the scientific community. Trust is hard-won, easily lost, and for better or worse the misdeeds of a few scientists reflects on the entire field.

Others will simply believe it, especially when major news outlets like Newsweek report the results without question, without acknowledging that it’s a lazy effort masquerading as science by a research team that already knew what result it wanted before handing out the surveys. (The “study” was funded by ProVeg, an NGO that promotes plant-based consumption and is involved in the development of plant-based foods.)

Lastly and most tragically, cats will suffer for it. Cats who are denied meat suffer slow and agonizing deaths, with health problems accumulating due to the lack of certain proteins until they go blind, become chronically malnourished and eventually suffer organ failure.

And for what?

Because some people believe human morals apply to cats?

Because, despite all common sense, they think they can change a species that has been dependent on meat for so long in their evolutionary history that their bodies literally cannot synthesize certain proteins and cannot extract nutrients from most plant material?

How would we like it if we were dependent on giants to feed us, and those giants decided we could and should live on a diet of marshmallows? We’d suffer horribly and we’d die, but at least we’d know why.

Cats don’t have that luxury. They depend on us to do right by them, and when we adopt them it’s our basic responsibility to keep them healthy and well-fed. Let’s not fail our little friends by pretending human ethics is applicable to a species that can’t understand it, or consent to participating in it.

This Might Be The World’s Worst Cat Study

A bizarre new study concludes some cats are depressed because they live with men, among other questionable claims.

A Brazilian research team wanted to find out if cats experience separation anxiety when their owners aren’t home, so they visited the homes of 200 cat servants, wired them up with cameras and microphones, and conducted a rigorous study in which they first established a behavioral baseline, then compared the cats’ normal behavior with their actions when their humans weren’t home.

Just kidding.

In what might be the laziest, most assumptive attempt at conducting animal behavioral research thus far in 2020, the team from Brazil’s Universidade Federal de Juiz de Fora handed out questionnaires to 130 cat owners that asked, among other things, about the body language and behavior of their cats when they weren’t at home to witness it.

Did these cat caretakers have Palantirs that allowed them to spy, Sauruman-style, on their kitties at home? Nah.

The information comes third-hand. I’m not joking:

“Since there weren’t any cameras observing the cats, the owners answered based on evidence from reports by other residents, neighbors or any signs the cat left in the home, such as feces, urine or broken objects, [study author Aline Cristina] Sant’Anna said.”

My neighbor’s friend’s Uber driver, who parked outside for 16 minutes, said my cat looked angry when he briefly appeared in the window, so I’m gonna go ahead and write in this here questionnaire that Mr. Socks has terrible separation anxiety. Yep.

But suppose the data was reliable, instead of fuzzy third-hand accounts from cat owners who quizzed their apparently nosy neighbors about what their cats do in their down time. How do we know a smashed vase is separation anxiety, and not the result of a cat with the zoomies just knocking stuff over?

How do we know a cat who misses the litter box doesn’t have a UTI, or refused to use a dirty box?

But it gets better, dear reader. This team of superstar scientists decided the reason some cats were supposedly depressed or destructive is because they live with male caretakers instead of women:

Cats with behavior problems also tended to live in households without any female adults or more than one female adult; households with owners ages 18 to 35 years old; single pet households; and households with no toys.

“Maybe, for different reasons, the animals raised in households with no female adults or more than one female adult were less likely to develop secure and mentally healthy types of attachments with their owners in the sampled population,” [study author Aline Cristina] Sant’Anna said.

Or maybe the authors are getting paid to make wild, unsupported assumptions and combine them with worthless data.

The CNN version of the story doubles down by quoting a self-appointed expert who expounds on the cats-and-females theory:

Additionally, female cat owners tended to be more affectionate and doting, said Ingrid Johnson, a certified cat behavior consultant for more than 20 years.

Cats might be a little more distressed in the absence of their owners if they are younger adults who are busy and not focused on the fact that they have a pet, the researchers theorized.

“They’re happy to have a pet, but they’re going out, being social, [going on] dates and having parties,” added Johnson.

Right

For those who aren’t keeping score, we now have an academic and a certified behaviorist telling us cats who live with men or adults younger than 35 are more likely to be depressed because they, like, totally heard we don’t scoop the litter boxes as frequently or something.

That’s because all men refuse to be affectionate with their cats, and people under 35 are party animals who snort cocaine off the posteriors of strippers when they should be feeding Fluffy, according to our experts.

Johnson’s credentials include working at a hospital for cats and running her own “cat behavior house call and toy business.”

It’s worth noting that there are dozens of organizations that certify people as cat behaviorists. Sometimes the difference between a certified behaviorist and one without certification is the former simply paid dues to a member group that issues the certificates.

The Rock and His Cat — “Where’s the jabroni who claimed men aren’t affectionate with their cats?”

By now my opinion on this study is abundantly clear. The methods and conclusions wouldn’t pass muster in most undergraduate classes, let alone a research paper published in an academic journal. (The researchers published their work to PLOS ONE, an open access journal.)

What I don’t understand is, why bother? According to the study, 13.5 percent of the cats demonstrated at least one behavior consistent with separation anxiety, but for reasons I elaborated on earlier, the data is worthless. I’m not a fan of questionnaire studies in the first place, let alone questionnaire studies asking people what other people told them about difficult-to-interpret animal body language.

And lastly, I’m not a fan of this idea that there’s a certain “type” of person who is the best kind of cat owner.

We should be dispelling crazy cat lady stereotypes, not perpetuating them. Maybe men are in the minority when it comes to adopting cats, but nothing other than unfounded assumption suggests we men aren’t loving and affectionate with our little buddies, just like there’s nothing but anecdotal evidence to suggest caretakers younger than 35 neglect their pets.

The past few years have seen an authentic boom in research into feline cognition, behavior and emotion, and for that I’m grateful. But we can do better than this.

Image sources: [1] [2] [3]