Cells, good or bad, are smart.

Starving them of sugar is not a simple solution as it seems.

Cancer and sugar: Does changing your diet starve cancerous cells? - Health - ABC News

"Stopping sugar getting to cancer cells would also mean that your body's healthy cells get starved of necessary sugars," says the CEO of Cancer Council Australia, Professor Sanchia Aranda.

"I think that would make you lose weight, [and] would make your immune system less efficient and more likely that a cancer would progress."

What's more, our bodies are clever — they have other ways of getting glucose.

Even if you do try and cut it out, the body will just convert fat and protein stores into glucose where necessary.