From Dr Fung really. When we eat we create an insulin response.. by eating within a limited window we don't create the response so often. For a poor exhausted Type 2 body with insulin resistance the less insulin response you can trigger the better. So only eating once or twice a day and eating very low carb means that your insulin response is less. Less fat is stored and your body uses its reserves to function. That's why the eat three carb based meals per day with snacks in between is such appalling advice for Type 2's. Eating one or two meals a day within a limited 6-8 hour window lets your body use some of its fat to run itself hence also assisting weight loss. That's why I credit intermittent fasting alongside ULCHF as the reason I have my Type 2 under control.