Also, the study didn’t control for any of the other variables of his diet for example low sugar intake. You can eat as much vegetables as you like, if you eat a lot of sugar, your diet is still unhealthy.
Even if the paper holds for vegan there is still a difference in living longer and living health. That’s why I stated the health span, too.
I really recommend reading the book. Its evidence is based not only on large cohort studies like this one, but also on other sources like centennial studies, biochemical pathways etc. It is probably the best source for understanding what food does with our bodies as of today.
And the Oxford study has a whole lot of "due to poverty" evidence. "This recommendation is bad because it does't work in Kenya in areas of subsistence farming, where the diet is already kinda shitty" -- really?
N = 267,180
https://www.ncbi.nlm.nih.gov/pubmed/28040519/
Broadly speaking, a vegan diet is a diet of deficiencies. (Meta-analysis from oxford)
https://www.tandfonline.com/doi/full/10.1080/10408398.2018.1...
And probably harmful for brain health.
http://www.diagnosisdiet.com/vegan-diets-and-the-brain/?utm_...