And carnacine is actually one of the main buffers of those hydrogen ions.

So in theory, if you can increase the amount of lactate that's produced, but decouple

it a little bit from the production of hydrogen ions, you may be able to increase performance.

It turns out like the heart is very, very good at using lactate.

The heart can pull just about any fuel from the blood that it wants, from

prioruvate to lactate to ketones, to carbs, to whatever.

Makes sense, right?

Because the heart is operating on sort of a just-in-time metabolism.

It literally has to provide its own fuels at the same time it's burning them. Hey guys and welcome to Sigmar Nutrition Radio.

This is Danny Lennon and we're back for another episode where we take a look at evidence-based nutrition and how that

relates to health performance and body composition. We're at episode 86, I think, today.

And in a couple of minutes' time, I'm going to be bringing on Dr. Mike T. Nelson, who's

returning to the show who was previous on a well over a year ago

talking about some general concepts around metabolic flexibility. And really we only touched

the tip of the iceberg in that conversation. So I wanted to bring Mike back on to dive deep

into some of the topics that he and I have been talking about back and forth online for a while,

especially around the different kind of fuels that we can use at different time points,

when we should be and shouldn't be using different type of, and by fuels,

I just simply mean different substrates that we're going to derive energy from.

Also some areas of interest that have kind of cropped up in our conversations recently

have been around this idea of keto adaptation, especially for athletes.

And Dr. Mike has some kind of really interesting stuff and viewpoints on that, which I think

...