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I mean, I think everyone agrees that way too much sugar or eating nondigestible plants is not a good idea.

But a vegan diet has been approved for humans at all stages of life, and the vegan dog food I'm aware of meets all AAFCO standards (nutrients, digestibility, protein:carb:fat ratio) as well as passing tests for dog interest/palatability.

There's a big difference between a well-rounded plant-based diet, and living off sugar or cellulose-heavy raw plants.

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> eating nondigestible plants is not a good idea.

Almost every plant is nondigestible.

> But a vegan diet has been approved for humans at all stages of life

Well if it’s been “approved” then no need to worry! Who exactly “approved” it and why do I care what they say?

> There's a big difference between a well-rounded plant-based diet, and living off sugar or cellulose-heavy raw plants.

There are like 4 edible plants that don’t provide 90% of their calories in the form of sugars (starches are a kind of sugar). There are also very few plants that don’t have a huge cellulose content.

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