Karl Henry is one Ireland's most recognised and leading personal trainers. He is well known for his role as the leading fitness expert on RTÉ One’s Operation Transformation since it began.
He writes for the Irish Independent every Tuesday and also other health and fitness feature pieces and programmes. He has successfully published four books to date, including Real Results with Karl Henry, Bums Tums and Bingo Wings, The Slim Solution and his most recent book Beach, Bums & Tums. He is currently working on his fifth book which will be published in 2018.