[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?

[EasyMark]

Your body usually stores 1-2 days worth of “glucose” energy in the form of glycogen in muscle tissue and the liver

[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.

[batperson]

Nuts, seeds and olive oil are all extremely high in calories.

[francisofascii]

It is not intuitive, but a diet high in fat will make you less fat than a diet of sugar and carbs. The calories in nuts are not all absorbed.

[EasyMark]

Thus they are very filling if you eat a reasonable amount and not a can of them. I eat them at meal time and not as snacks, it’s easy to forget how many times you’ve grabbed a pinch of them if you “snack” on them throughout the day. Nuts are very nutritive as well, unlike pretty much any other snack heavy in sugar/fat

[EasyMark]

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

[croes]

"The dose makes the poison"

[pjerem]

True.

But contrary to fats (or proteins or fibers), sugar is also addictive, doesn’t satiate your body, and ultimately generates hypoglycemia some hours later for you to eat more sugar.

So yes, the dose makes the poison but sugar is the only one poison your body accepts to absorb in immense quantities.

[iamacyborg]

Or just take a ketone supplement and eat normal food.

[sgonz]

Has any research been done on what happens when the body is in a state of high glucose and ketones at the same time?

[iamacyborg]

Not that I’m aware of but a number of professional cycling teams have been using them for a few years so there may be something in the works.

[layla5alive]

Ketoacidosis.

[EasyMark]

You have a source for that? It’s my understanding that ketoacidosis is pretty hard to achieve unless you’re diabetic or some other serious medical condition. It is not the same as ketosis.

[iamacyborg]

I don't think elite cycling teams would be taking these supps if it caused that, do you?

[layla5alive]

@sgonz That state results in ketoacidosis, which is fatal.

[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.