Possible Cancer Benefits
There is a page about cancer research here.
The theory is that cancer cells are vulnerable when they try to divide because they are both insulin and glucose dependent.
You have pre-cancer cells throughout your body. If you are in ketosis, there is a shortage of insulin and an absolute shortage of glucose. This offers the cancer a hostile environment in which to develop. There is every chance your immune system, will be able to recognise a cancer cell misbehaving.
It's suggested that even if you have no weight issues, that you take yourself into ketosis once a year, and stay there for three weeks. That will give your body a good opportunity to sort out some possible future problems, before they become an issue.
Nutritional Ketosis
Defined as a metabolic state where fat is the main fuel for the body, rather than glucose.
Entering Ketosis
Ketosis begins after 3-4 days on a restrictive diet, where your carbohydrate intake is less than 60gm of carbohydrate each day.
Adapting to this diet, may go on for up to three weeks. Breaking out of the diet, (Eating too many carbs.) delays the process.
During the transition, you may feel that you lack energy, or that you've got the flu.
If you stay with the diet, your body builds a new homeostasis point around your changed behaviour. Fully adapting takes 3-4 weeks.
One change you'll notice is that you need more salt, especially in the beginning. On a LCHF diet the kidneys excrete more salt than usual. Correct this by salting your food, and/or by drinking bone broth and the juice off cooked vegetables. And for me, I splash some hot water in the dirty fry-pan after breakfast, and make a small but delicious salted drink.
Brain Fuel
Some of us want more, once we realise that more is possible.
For instance, in nutritional ketosis, I was able to cycle quite a distance at a very good speed, and develop no build-up of pain in my thighs. I was surprised, not bad a 73, I'm telling myself.
I'm impressed that my distant vision is clearer when in ketosis. Now of course, that is just my subjective opinion. Distant objects seem bright and clear. I've recently been tested by an optician, two years after the previous test. He tells me that both eyes see better now than two years before. Not much, he called it "one step" but that helps confirm my own idea.
I'm sure that in ketosis, I can do mental work, like preparing this website, for long periods of time without getting as tired as I'd expect. The brain is working better.
Ketones as Energy
Ketones are created in the liver from acetyl-CoA.
After you have made the transition, your body will mostly burn the primary serum ketone beta-hydroxybutyrate, usually written β-OHB. The other ketone, is acetoacetate (AcAc).
When ketones are available glucose is conserved, and glycogen stores in the body are also conserved. The body is designed to use ketones first, and protect glucose levels in the blood.
Weight Loss Benefits
People who switch from a glucose metabolism to a ketone metabolism usually lose a lot of weight. However, on every diet there is a homeostatic point that the body will settle into. So weight loss won't go on forever.
Many people will be happy not to get too strongly into the science. They will use a low-carbohydrate diet to get back to desirable weight, and eat less stringently most of the time after that.
Once you understand that you can control insulin, keeping your weight stable is easy to do. You'll be keen not to see it get out of hand.
Ketones Burn Cleanly and Efficiently
This means that energy use produces far fewer free radicals (ROS). That's much better than trying to take anti-oxidants to control them.
Better still, histone deacetylase is produced, which activates your body's own genes in a way that combats oxidative stress. That's far better than trying to take anti-oxidants to combat oxidative stress in the body.
