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Vegetables are losing their nutrients. Can the decline be reversed? (www.theguardian.com)

submitted 7 months ago by [email protected] to c/news

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In 2004, Donald Davis and fellow scientists at the University of Texas made an alarming discovery: 43 foods, mostly vegetables, showed a marked decrease in nutrients between the mid and late 20th century.

According to that research, the calcium in green beans dropped from 65 to 37mg. Vitamin A levels plummeted by almost half in asparagus. Broccoli stalks had less iron.

Nutrient loss has continued since that study. More recent research has documented the declining nutrient value in some staple crops due to rising atmospheric carbon dioxide (CO2) levels; a 2018 study that tested rice found that higher CO2 levels reduced its protein, iron and zinc content.

While the climate crisis has only accelerated concerns about crops’ nutritional value, prompting the emergence of a process called biofortification as a strategy to replenish lost nutrients or those that foods never had in the first place.

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[–] [email protected] 5 points 7 months ago

I would place good money on this bet.

There's a reason Brussels sprouts taste good now, but tasted like trash pre 1990's. Most all mass produced produce has been selectively bred for taste, appearance, yield to cost ratio, and pesticide resistance. They haven't been bred for health content. They've been bred so the grape tastes like cotton candy.