It's crazy when you think about all the different kinds of foods we eat.

We just swallow and hope it all works out for the best.

Well, it turns out there are better ways to think about keeping our bodies humming healthfully

along.

Welcome to Nutrition Facts.

I'm your host, Dr. Michael Greger.

Today we discover the powerful properties of citrus, Italian lemons, lime, citron,

bitter orange, grapefruit, pomelo, mandarin, grapefruit, clomintine, cum quads.

Actually, one of my favorite citrus fruits is the cum quads because you can eat the whole

fruit peel and all, which is ideal because the DNA-repairing enzyme boosting powers of

citrus appear to be concentrated in the peel.

New data demonstrating a DNA protective agent, which was present at least some fruits and

specials, found that it was heat-sensitive and determined it was not vitamin C confirmed

in the study that tried vitamin C directly and found no effect on DNA protection and repair

of DNA strand breaks.

The crotinoid beta-cryptazanthin, found primarily in citrus, seems at least one candidate.

If you expose cells to a mutagenic chemical, you can cause physical breaks in the strands

of DNA, but in less than an hour, our DNA-repair enzymes can weld most of our DNA back together.

But if you add some of that citrus phytonutrient, you can effectively double the speed at which

DNA is repaired.

But this is all just cells in a petri dish.

What about in a person?

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