Programme of diet and exercise (7)

I believe the answer is:

regimen

(Other definitions for regimen that I've seen before include "Prescribed system of diet and exercise - mere gin (anag)" , "System of diet etc" , "Systematic course of treatment, diet, etc" , "Systematic way of life" , "Government - course of treatment" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.