IF & LCHF (low-carbs / high-fats ration) decrease cancer risk, and help to defeat cancer.
Intermittent fasting lowers blood glucose and IGF-1 levels, which reduces the risk of cancer (source). Studies have found that reducing energy intake and fasting for longer intervals can reduce the risk of breast cancer (source).
Intermittent fasting and very-low-carb diet help not only treat, but also prevent cancer. Here are two important facts:
- In the body of absolutely every healthy person there is some number of cancer cells that are constantly being suppressed by the immune system. If a person gets cancer, it means that the immune system failed to cope with its task.
- While healthy cells can use both glucose (sugar) and ketones as their food, cancer cells can utilize only glucose (sugar) as their energy source, but not ketones.
...fasting might force a person's body to run on something other than sugar for energy. Cancer cells, might not be able to run on that alternate fuel source, called ketones — potentially starving them out and making them more vulnerable to treatments (source)
Even more: ketone bodies cause death of cancer cells. The following illustration shows how this occurs even in the presence of glucose:
In the early days without carbohydrates, there can be "sugar withdrawal". Tips for relieving its symptoms are here.
More information about that in Google.