• over_clox@lemmy.world
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      2 days ago

      They require meat proteins to live, plain and simple.

      It’s even law in some countries that classifies feeding cats a purely vegan diet is animal cruelty.

      • infinitesunrise@slrpnk.net
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        2 days ago

        meat proteins

        Proteins are chains of amino acids. There are probably proteins specific to animal muscle, but misguided legislation notwithstanding it’s the amino acids that are nutritionally required, not any specific protein configuration of those animos, and you can get those from a massive array of non-animal sources.

        • infinitesunrise@slrpnk.net
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          2 days ago

          Taurine and arginine are amino acids, building blocks for proteins, not proteins themselves. Animo acids are quite ubiquitous across life, not specific to any one type of life. eg Plants contain both taurine and arginine.

          • merde alors
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            2 days ago

            thanks for the additional information

            i remember reading that plants can’t supply enough taurin. Luckily it seems easy to synthesize (that’s how we have redbull &c