This is the question and answer from the Cambridge Diet website.
Can someone with diabetes be on the Diet?
Answer
Cambridge programmes can now be used with care in people with Type 2 diabetes.
The support of the client’s/patient’s doctor and specialist nurse is essential.
The higher calorie programmes are used initially, with a gradual reduction dependent on response, and medication. Weight loss, and normalization of blood glucose levels can prove extremely beneficial. People with Type 1 diabetes may occasionally be helped with the Cambridge programmes, when medication changes and monitoring of blood glucose are supervised by health care professionals.
No idea if it is beneficial to a Diabetic or not. Probably just lining somebody's pockets ?
Ken.