From Prakash Virkar, Bangalore, India
I read your article on precision nutrition with great interest (12 September, p 34). It suggests that dietary response is, in part, associated with microbiome composition. Yet surely this is a catch-22, since microbiome composition is modified by dietary intake. It would seem that robust conclusions can only be drawn after long-term studies in which changes in the microbiome with time are also accounted for.
