1. CAN OVERWEIGHT PATIENTS SUFFERING FROM CANCER USE THE KETO DIET?

It’s not only possible but even necessary. Experimentally, it was found that ketosis deprives cancer cells of the necessary energy for them, which they, like the fat on your stomach, get under the influence of insulin from glucose, and they can not get energy from fat in the absence of carbohydrates.

There are many cases when in ketosis there was resorption of the cancerous tumor, mastopathy.
...