Carbohydrates have a potential role in the development of metabolic diseases, including type 2 diabetes and obesity.

Carbohydrate-rich food is thought to overstimulate the hormone insulin by causing chronically high blood sugar levels. One of the roles of insulin is blocki...

Typical Western diets consist of simple carbohydrates, such as pizza or sandwiches. These food items provide the glucose your body uses as fuel. Spiking glucose increases insulin levels, which the body uses to process blood sugars.

• Fasting for 16 hours ev...

A ketogenic diet is predominantly made up of high-fat foods , including butter, oils, meat, fish, eggs and cheese, and very low-carb vegetables such as cauliflower and leafy greens.

This forces the body to burn fat for fuel, rather than glucose. In order t...