Please see link to IRFU Referee Manual 2016/17 Season and Nutrition Guidelines for Referees.
The manual covers all aspects of refereeing and should be a continued reference point for you throughout the season.
The Nutrition Guidelines were put together after a comprehensive survey of our National Panel Referees. It should provide you with some very useful and relevant advice.
Best of luck for the remainder of the season and thank you for your continued service to the game.