Thanks everyone for your input. I have had no alcohol since knowing RT was planned.

Had my SpaceOar instilled this AM and have my radiation planning images this afternoon. SBRT to start 9/18.

I do appreciate everyone’s personal impressions, but the question was if anyone had specific instructions from their Radiation Oncologist (or knew of any specific studies documenting an adverse impact of modest drinking on RT).

It seems everyone who has responded has made a personal choice, all of which is fair.

I would clarify, though, that many people who choose an occasional cocktail or glass of wine have no difficulty limiting their intake to a measured pour.