Keto 101 – What is a Ketone and what is Ketosis?
Hi, i’m Natalie Kilbourne and i’m here with the amazing
Dr. Mary Newport, and we are going to be talking a little bit about
Keto 101; so let’s start with the basics, Dr. Mary
What is a ketone?
Ketones have been around as a fuel for
um billions of years.
Humans have been in and out of ketosis since the beginning of humans, in fact
before humans, earlier primates.
They’re a normal energy source, again, its a normal part of our
physiologic, um metabolism.
So the first single-cell organisms, one of the three fuels that they used,
and still sue today are ketones.
A ketone is a molecule, there’s three of them that are made when
your body breaks down fatty acids. Beta hydroxybutyrate,
acetoacetate, and acetone.
So in a period of starvation, our livers essentially oxidize or burn
Fat and as a consequence of that, we produce ketones.
and as a consequence of that, we produce ketones.
So you think of three macronutrients , carbohydrates, fats,
and protein. ketones are the
fourth macronutrient. They’re a super highly
efficient energy molecule that our brains
actually prefer over other fuels.
So ketosis is a normal physiological process in the body.
When our body transitions over
and we’re no longer burning glucose, but we’re burning fat
we’re moving into a state of ketosis
we’re continually making those ketone bodies,
but sustaining ketones through diet
meaning that you’ve gotten your ketone level up
gotten your ketone level up
and you’re sustaining it,
you know, 24/7, requires that
you greatly reduce the amount of carbohydrate in the diet and increase
the fat to pretty significant levels.
a ketogenic diet is by definition, a low carbohydrate diet.
But a low carbohydrate diet just means you’re simply
lowering the amount of carbohydrates you’re eating.
The definition of it varies significantly
and we’ve been on a high carbohydrate diet for so many years.
50 to 150 grams of carbs per day is
accepted as a low carbohydrate diet.
to get into ketosis need to eat less than 50 grams of carbohydrates
per day. And have to minimize their protein.
its not the case with everyone, some people have to
get even lower,
but you have to get those carbs down
so low that when your blood sugar starts dropping,
Your liver starts making ketones and thus, you’re into ketosis.
Scientists are by definition skeptics.
We are professional skeptics, right, so you have to
be critically skeptic of both your work,
and other people’s work. And so being able to see
the research that’s being done by my colleagues,
new papers are being published literally every week
uncovering benefits of
Whenever i’m fully on a ketogenic diet, I
just feel very
stable…and lots of energy even
into the night. I can
stay focused for longer periods and that’s definitely my favorite.