I've done both vegan and keto for over a year at some point during my life and what I will say is that I naturally cover my nutrition bases through preferences and desires, while vegan though I had to hunt down (forgive the pun) b12 and complete proteins combinations a little more diligently to cover my nutrition needs.
Or put differently, I think it's easier to mess up a vegan diet than a keto one.
I've done both vegan and keto for over a year at some point during my life and what I will say is that I naturally cover my nutrition bases through preferences and desires, while vegan though I had to hunt down (forgive the pun) b12 and complete proteins combinations a little more diligently to cover my nutrition needs.
Or put differently, I think it's easier to mess up a vegan diet than a keto one.