Everyone who keeps posting this ignores that there has been vegan cat food for years, supplemented with necessary vitamins etc and backed up with scientific research. They didn’t make it up out of thin air as you seem to be implying. Sceptism or disagreement is fine. Painting the other side as lunatics is not.
Vegan cat food being safe isn’t exactly an uncontested thing in the scientific/medical community.
https://pubmed.ncbi.nlm.nih.gov/?term=vegan foods for cats
Everything from it being very hard to balance the nutrients in these foods, in a production sense, to veterinary science not being complete on what is needed for proper diet. The foods available aren’t great, and making it yourself is generally worse. Most of the reports of the animals being perfectly fine, when allowed to be closely monitored by experts, show that, while they appear fine, they likely to suffer long term consequences to their health, and often die of them. however it takes a long time, so regardless of the average lifespan decrease, which is abstract, and hard for a general pet owner to quantify, since the cats lived for years, people assumed it was fine. There is also a lot of mis/disinformation from the pro side on the actual QOL of the animals, both because they aren’t experts to know, and, to a lesser extent, data gets fudged to support their goals. This is not to say that the same can’t be said of the con side.
Sure, and good information for the discussion. This was my point: everyone was acting like vegans are actively delusional in feeding cats vegan food. While there are very much valid criticisms you can have, most people are not engaging with the facts, or with even a modicum of respect. Thank you for not being a part of that.