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Welcome to the Dr. Berg's Healthy Kito and Interminute fasting podcast, where Dr. Berg takes you on the journey for the truth about getting healthy and losing healthy weight. So I want to talk about ketones in your brain. Your brain actually does not need to adapt to

ketosis. Let's say you have this idea that you want to start the ketogenic diet and you start getting

brain fog and someone tells you well that's because you're in the transition phase and it takes a while to transition into full ketosis. Okay? Now that's

partially true but the brain is an exception and it doesn't need to adapt

anything. It doesn't need to create new machinery or new enzymes or anything.

It has the capacity to run on ketones immediately.

And your brain actually prefers ketones.

A certain portion of the brain will always run on glucose,

one third of the brain. But two-thirds of the brain will always run on glucose, okay? One third of the brain, but two-thirds of the brain

runs on ketones. And what's unique about the brain is that 23% of all the energy that you

generate is used by the brain. So why is this significant?

Okay, well here's the thing when you start a ketogenic plan you want to feel

better right you don't want to have mental dullness. You want to have high-powered energy, you want to have focus, you want a lot of energy.

But if you're getting brain fog, mental fatigue, depression, or any lowered emotional state, realize that there's just not enough

ketones available as the fuel source.

It's not that your brain needs to adapt and it takes time.

If the keytones are there, it'll suck it right up.

So keytones come from endogenous sources,

which means that your body can make them

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