Although I am not diabetic, I have struggled with my weight throughout my adult life, and with other members of the family having been diabetic I really wanted to get my weight under control and keep it there. Previous attempts with Michael Moseley's low calorie diets got good results, but came to an end and I put all the weight back on almost immediately. My wife had et Graham and his ideas sounded good, so I thought I would try his ideas out. After our initial discussion I found the CGM data invaluable - a meal of fish and chips a few days after first fitting one pushed my blood sugar up to over 13, and I rapidly found that not easting carbs kept it where it should be, between 4 and 6. In the early stages of using Prolongevity I learned that I could keep carbs down, and the weight fled - at best I was 3.5 stone below where I started, with my BMI in the normal range for the first time in decades. I have slipped back from time to time, but never to where I was, and I have totally abandoned bread, potatoes, cakes, rice and pasta - which I never thought was possible. When my wieght goes up I know why, and the steps I need to take to get it back down again.

I have found it amazing how well I can keep going without food now - at age 67 I did the Ride London 100, and from waking up to getting home I ate a tub of yoghurt, two 40h bags of nuts and two 50g blocks of cheese. I cycled well over 100 miles that day, but wasn't even slightly hungry at the end of it.

I'm sure I'm not one of Graham's perfect patients - but what he taught me has kept my weight well down, and at 70 I am fit, active, walking, cycling and doing high-intensity strength training, and still doing stairs two at a time. I'm most grateful for what Graham has taught me, and how it is a sustainable way of living and being active as I enter retirement.