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NutritionFacts.org Video Podcast

How Ultra-Processed Foods Could Cause Disease: Loss of Phytonutrients

NutritionFacts.org Video Podcast

Michael Greger, M.D. FACLM

Nutrition, Alternative Health, Health & Fitness

4.8951 Ratings

🗓️ 29 April 2026

⏱️ 5 minutes

🧾️ Download transcript

Summary

The 150 key nutritional components that are tracked in nutritional databases are only a tiny fraction of the more than 26,000 compounds present in our food.

Transcript

Click on a timestamp to play from that location

0:00.0

Ultra-processed foods don't only negatively impact nutritional status through a relative

0:11.0

lack of micro-nutrients like essential vitamins and minerals, but also by lacking phytonutrients,

0:16.7

the thousands of plant nutrients that aren't listed on the ingredients labels that may benefit our health.

0:21.9

For instance, polyphenols.

0:23.9

They aren't technically essential and that they aren't necessary for life,

0:27.6

but they may be necessary for a long life, so they're considered lifespan essentials.

0:33.6

Our primary understanding of how diet affects health is limited to the 150 key nutritional

0:39.0

components that are tracked and catalogued in nutritional databases.

0:42.9

But these represent only a tiny fraction of the more than 26,000 distinct, definable

0:49.2

compounds present in our food, many of which have documented effects on health, but remain unquantified

0:55.0

in a systemic fashion across different individual foods.

0:59.0

There are 8,000 kinds of polyphenols alone.

1:02.0

When brown rice started to be polished into white rice, people started to die in mass from

1:07.0

a nutrient deficiency disease.

1:09.0

Berryberry became one of the most common diseases in Asia

1:12.9

because the German brand that got removed from the rice

1:15.9

were where the B-vitamin was.

1:18.4

So Miller started fortifying the polished white rice

1:21.3

by adding back the thiamen that had been removed.

1:23.9

But what about all the other fideom nutrients that are lost?

1:26.9

And that's just going from brown rice to white, which is considered a moderate level of processing.

1:31.3

Think how much is lost when rice is turned into an ultra-processed product like brown rice syrup,

...

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