[JofArnold]

Indeed.

My speculation: diets high in vegetables and low in meat reduce inflammation and improve gut bacteria (this is true). So I’m guessing since there are connections between mental health and both perhaps the diet itself is beneficial to mental health?

Fact: And as for hated... it’s so mainstream in London now that if you’re a supermarket or restaurant without vegan options you’re going to lose a lot of business. Many explicitly advertise selling vegan stuff. I think it’s very accepted here now and I expect that to be a trend everywhere.

My speculation: it seems that the key component in fish is the oil and for that there’s algae alternatives. So perhaps a vegan diet with fish oil is the ideal one.

Single data point and context; I’m 100% vegetarian, 99% vegan, eat algae oil and am very healthy. Do with that info as you please ;)