Thiamin.

Also known as Vitamin B1.

You typically can't get enough of it by eating vegetables and fruit. You need to get it from red meat. Bloody, red meat. And some fish. Particularly from organs of animals, like liver, kidneys, hearts, etc.

Why does this matter?

Because one thing that cats need more in their diet more than anything else is Thiamin. If they don't get it, their muscles break down, their fur turns ragged and falls out, teeth decay, eyes stop working, and eventually they go all bonkers.

That's why they fortify cat food with Thiamin.

A lot of Thiamin.

So much so that if humans ate cat food they could die due to liver poisoning. It's also why you can't feed dogs cat food or cats dog food. Dog food doesn't have enough Thiamin to work for cats.

That's because cats normally would be eating a ton of small rodents whole to fulfill their needs. As a result, cats evolved to not produce as much Thiamin on their own, and so if they are deprived of a source they're well screwed.

Which also means, vegans who feed their cats an all vegetable diet are literally torturing and starving their cats to death.

Now, why does this matter with us humans?

Because we need Thiamin too. They put it in cereal, but vegans can't eat that because the majority is not "vegan."

One of my teachers in high school was vegan. Also, an obvious Communist who came here with her husband from the Czech Republic after they stopped being Communist enough for her, but that's another story.

She was pale, emaciated, had ragged hair, a perpetual cough, and smelt like stale donuts. It's obvious to me now, she was severely B1 deficient. It would appear that a B1 deficiency can lead to delusions such as Communism and wanting to teach in an American high-school.

And now we're hearing about them wanting to stop meat production, especially red meat? Killing the egg market? Forcing us to accept crickets?

It sounds to me, with this knowledge in mind, that their aim is to deprive us of readily available sources of Thiamin such that we become deficient and end up like my emaciated, delusional high-school teacher who thought Communism was a good idea despite living in a nation reeling from the years it parasitized them like a cancerous growth.

Anyways, make sure your cats get a good amount of Thiamin and consider frying up some liver and giblets for a try. Lemon sauce goes well with it, if you need help getting used to the flavor. Who knows, it might be the cure to your specific and unidentifiable illness.