I concluded this while in line at a Blaze Pizza which offers a Keto crust...and...i dunno all these perfectly healthy young people requesting it like it were some new flashy item at a store...and one just wonders what it was like in the simple days of fresh baked bread at home in the village and milk straight from the cow, etc...
I learned that most stuff in restaurants or stores that claim they are "Keto Friendly", aren't. I don't trust them. Better off making your own stuff.