His remarkable knowledge of the field came about through years of study and experience. He practised for a number of years with the late Dr Jack Levenson (founder of the British Society for Mercury Free Dentists) treating the Mercury toxic patient. After a decade of hard work he started to investigate toxicity issues in the practice of dentistry. He also has a particular interest in nutritional medicine. When time allows his other interests include following the revival of the fortunes of the Welsh rugby team!