Take into the body (6)
I believe the answer is:
ingest
'take into the body' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ingest that I've seen before include "Absorb mentally" , "Swallow, absorb" , "Take (food) into the body" , "Take nourishment into the body" , "Take in with tinges" .)