To add to that: A majority of head and neck cancers are caused by HPV.
The authors note possible additional factors to diet. I wonder whether HPV vaccination may be loosely inversely correlated with vegetarianism (geographical/socio-economic/healthcare system differences etc.).
One thing I would’ve initially speculated but apparently had wrong was dietary acid, which is actually lower in plant-based diets. The other would be possibly volume of food (lower caloric density), but overall, I’m willing to take the authors’ speculation as-is, as I’m sure they tried to find any relevant data when speculating about causality – much more thoroughly and knowledgeably than I could hope to.
To add to that: A majority of head and neck cancers are caused by HPV.
The authors note possible additional factors to diet. I wonder whether HPV vaccination may be loosely inversely correlated with vegetarianism (geographical/socio-economic/healthcare system differences etc.).
One thing I would’ve initially speculated but apparently had wrong was dietary acid, which is actually lower in plant-based diets. The other would be possibly volume of food (lower caloric density), but overall, I’m willing to take the authors’ speculation as-is, as I’m sure they tried to find any relevant data when speculating about causality – much more thoroughly and knowledgeably than I could hope to.
Last time I took some dietary acid, I was laying in bed for the next 16 hours.