You might have heard many people talk about the keto diet and that it is a high-fat diet. But what does all this really mean? Why is this important and how does our body react to a high-fat diet?

Let us drill into the world of ketones!

The car fuel tank comparison

A car needs fuel to work. And now you will ask. What type of fuel should we use? What fuel is the best?
But before we try to answer this, let's discuss about our fuel tank first. Our body can store about 100 gram of glucose into the liver and 400gr into the muscles. Once this short term tanks are filled up the rest is stored as fat. This is an unlimited storage. And this fat is fuel. Our body is a very intelligent machine and everything is done with intention. Storing fat for later use as energy, makes total sense right? In times of shortage and throughout human evolution, our ancestors needed to be able to rough it out, until they cought the next pray. The problem in today's society is the abundance of food and energy which is always around us which prevents us from ever using that reserved energy.

And if you never ride your bike, it probably needs to be taken for a repair first, hence it means for us that it can take some time to get used to it. Same stands for fat metabolism. If you eat all day or you get your energy mainly from carbs, you will not be able to use your fat tank very efficiently. And this takes a few weeks even for someone healthy and with well balanced hormones.
Once you start using your own fat for energy, then you are in ketosis!

Benefits of ketosis

Ketosis is state where you body creates ketones as a side-product of fatty-acid metabolism and has many benefits.

In summary and quoting from a recent study

"Ketosis will increase and maintain circulating ketone bodies, especially β-hydroxybutyrate (β-HB), which is one of the most abundant ketone bodies in human circulation. Increased β-HB has been reported to prevent or improve the symptoms of various age-associated diseases. Indeed, numerous studies have reported that a ketogenic diet alleviates symptoms of neurodegenerative diseases, cardiovascular diseases, and cancers."

How to get into ketosis

There are two simple ways to get into ketosis which from my opinion should be combined

How often should you be in ketosis

This can be tricky question, but we don't want to completely exclude carbs from our diet. Assuming we have regulated our hormones (insulin etc), reached our ideal body weight and dont have any other medical issues, eating some low glycemic carbs can be very benefical.

Key Takeaways

Further reading

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