[snitch182]

Does that mean you do good by your brain when you do a hard burn exercise once in a while ? After all those substances are a byproduct of burning fat instead of glucose by your liver. Or do i need a fat rich feast ?

[kjksf]

Your body starts producing ketons when you stop eating. Typically it starts 12 to 24 hrs.

It'll start faster if you don't eat carbs / sugar and instead use protein because the body start producing ketons when it runs out of glycogen stores. Sugar and carbs add glucose to your blood. The less of it you have, the faster the body will start producing ketons.

Exercise also helps because it uses glucose faster. Of course assuming you'll not just start eating carbs / sugar after exercise. That includes all drinks that include sugar.

But really you'll get most benefit of exercise just from a walk after meal.

Why after meal? Because that's when glucose spikes and a walk uses glucose faster.

[dcow]

You have it backwards. Your liver can convert protein into glucose in a process called gluconeogenesis https://en.wikipedia.org/wiki/Gluconeogenesis

[ericmcer]

Don’t you produce ketones any time you can’t get enough energy from carbohydrates?

[aszantu]

eat as much fat as you want, just leave out the carbs and sugar

[francisofascii]

This. It is hard overeat if your diet consists of fish, nuts, seeds, and olive oil.

[EasyMark]

Good fats. Stay away from human manufactured fats like transfats like it’s your religion.

[croes]

"The dose makes the poison"

[iamacyborg]

Or just take a ketone supplement and eat normal food.

[iamacyborg]

> Does that mean you do good by your brain when you do a hard burn exercise once in a while ?

There's a whole bunch of stuff happening in your body post strenuous exercise so it'd be hard to isolate ketones specifically from that.

[layla5alive]

But yes, exercise is very good for the brain.