The experts

One of the world's leading experts on how sugar affects metabolism. He explains how sugar and ultra-processed food drive insulin resistance.

He popularised the role of insulin in obesity and the use of intermittent fasting for metabolic health.

He studies the gut microbiome and personalised nutrition: why everyone responds differently to the same foods.

He clearly explains what insulin resistance is and why it's at the root of many modern chronic diseases.

She links metabolic energy to everyday wellbeing and to using blood sugar monitoring to understand your own body.

Known for his infographics showing how many equivalent "teaspoons of sugar" a food portion represents for blood sugar. He's helped hundreds of patients reverse type 2 diabetes.

An expert in the psychology of dietary change. She devised the G.R.I.N. model and studies the role of hope and habits in overcoming sugar addiction.

For decades he has investigated the link between carbs, insulin and fat storage, challenging nutritional dogma.