You are conflating the state of the art with how difficult something is.
As other have noted in the comments, research into nutrition is often poorly distributed and implemented. It often over emphasizes child nutrition and neglects adult nutrition. And it is fraught with bad science and agendas.
This says nothing about how complex nutrition is compared to any other field of research.
As other have noted in the comments, research into nutrition is often poorly distributed and implemented. It often over emphasizes child nutrition and neglects adult nutrition. And it is fraught with bad science and agendas.
This says nothing about how complex nutrition is compared to any other field of research.