Dr. David Bardsley

You know, 30 years ago, it was fat.

Fat was the enemy.

So anything you could do to lower the fat content of your diet, we thought was better.

And now there's science showing that that's not true.

that it's really hyperglycemia, it's really high blood sugar that will have that negative effect because that sets up inflammation.

The end products of the sugar metabolism will set up inflammation everywhere in your body, including your brain.

And actually now, and it produces this insulin resistance, and now in the science they're referring to Alzheimer's really as type 3 diabetes.

Your brain normally uses sugar as its primary sort of fuel,

But if you give your body so little sugar that there's not enough, then your body will selectively start to use fats, which are known as ketones or ketone bodies, and it will start to metabolize those fats.

And a lot of people find their brain works much, much better if it uses these ketones or fat as a fuel rather than sugar.

Half of what you said I would agree with.

Lots of vegetables, not lots of fruits.

Fruits are very, very high in fructose, which is a simple sugar that raises your blood sugar dramatically.

Our grandparents and our great-grandparents said,

didn't have access to fruit 365 days a year.

They only had fruit when it was available in season.

Well, there have been a tremendous number of studies done

And they haven't for the most part.

Some have some show positive benefits, but most show that there's no significant increase if you purposely stimulate your brain doing crossword puzzles or Sudoku or some of the commercially available ones like luminosity and whatnot.

And so those things are absolutely not detrimental.