I don't think lentils are on the reset. Can't say whether one serving, once, will do much to set anyone back or not. I tend to think not, and my experience tends to say not, so far as the reset itself goes, but it would set back my gut recovery a few days.
5'4" 39yo mother to five sweeties & married to their AMAZING DaddyGrok
Current Weight: 175lb__________________________________Goal: 135lb
Deadlift: 240lb________________________________________Back Squat: 165lb
Bench: 130lb__________________________________________Pre ss: 85lb
***Winning a 20-year war against binge eating disorder***