Keto 101 – Ketones and Energy!

Keto 101 – Ketones and Energy!

August 2, 2019 0 By William Morgan


So why ketones? Why does our body make these, what do they do, what’s the
importance of them.
so when we think about the energy that our body uses to
fuel everything that it does. we kind of
think of two major sources of energy.
We have fats and carbohydrates. Now, protein is also a really important energy source,
but it is secondary to fat and
carbohydrate because protein first is
used to replenish amino acid pools in
our body so we know that carbohydrate in
the diet gets broken down into something
like glucose and we know that fats in
the diet get broken down into something
called fatty acids or under very
specific conditions ketones as well and
then these molecules kind of enter
this very complex metabolic system where it converts those molecules into
something we call ATP and that’s
basically the way that our cell utilizes
energy so it’s the energy currency of
the cell.
So we’re talking about making
ketones from fats and we talked about
ketogenesis the creation or production
of ketones in our own bodies, well that
basically happens when we have
suppressed glucose and insulin and when
that occurs we start breaking down fat
either from fats that are coming in from
our diets or from our stored fats and
they go to the liver and some of that
gets converted into these molecules
called ketones.
Typically if someone’s eating like a
standard kind of even moderately high
carbohydrate diet most of the energy in
your body is being run off from glucose
and that includes the brain now if the
brain was really only able to use
glucose this would be a big problem
because we don’t store a whole lot of
glucose in our body as fuel we have some
that’s what glycogen is and we have some
in our skeletal muscle and in our liver
and that’s a backup source of glucose
but it really only persists or provides
ample glucose to support the brain for
maybe a day or so after we stop eating
but we have excess fat stores so the fat
is the major storage form of energy in
our body now this is fine breaking down
fats directly into these fatty acids is
perfectly fine for most of our body but
the brain not so much so there had to be
a way around it and really ketones are
the answer to that problem so fat can be
converted to ketones and ketones are
very efficient fuels for the brain and
this is important because if the brain
could not utilize ketones.
If we couldn’t convert that fat into ketones
for the brain to use the
have to resort to breaking down our
skeletal muscle to release proteins that
can be converted to glucose to fuel
brains. Which means that we would starve
within maybe two to three weeks, but
because of this adaptation, humans can
actually go on average two to three
months without food and depending on the
amount of fat that stored in the body, can go much longer.
I always find it interesting that even
today you hear people say that glucose
is the only thing the brain can use it’s
not true at all and we’ve known about
that for a very long time