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.
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.
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.
via Pain In The Bud