“Prior to working with John I was having a lot of stomach discomfort during my runs. I got to the stage where I was eating very little or avoiding food altogether before my runs. This left me with less energy and my training dipped as a result. John guided me on what foods to eat, how much to eat and the timing of them also. I now know exactly what works for me and what doesn’t work for me. Since working with John my training has improved a lot and I no longer have the stomach discomfort. I also just set a new PB in the Cork city Marathon!”

– David, 36 Performance Nutrition