this post was submitted on 29 Mar 2024
256 points (99.2% liked)

News

23200 readers
3035 users here now

Welcome to the News community!

Rules:

1. Be civil


Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban.


2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.


Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.


3. No bots, spam or self-promotion.


Only approved bots, which follow the guidelines for bots set by the instance, are allowed.


4. Post titles should be the same as the article used as source.


Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.


5. Only recent news is allowed.


Posts must be news from the most recent 30 days.


6. All posts must be news articles.


No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.


7. No duplicate posts.


If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.


8. Misinformation is prohibited.


Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.


9. No link shorteners.


The auto mod will contact you if a link shortener is detected, please delete your post if they are right.


10. Don't copy entire article in your post body


For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.

founded 1 year ago
MODERATORS
 

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.

you are viewing a single comment's thread
view the rest of the comments
[–] FuglyDuck@lemmy.world 128 points 6 months ago (5 children)

I realize thye said it's due to CO2, but I can't help but think it also has to do with selectively breeding crops for mass production- and stupid things like being shiny red (as in certain apples) or other qualities that might make them more marketable instead of nutritious.

[–] Ebby@lemmy.ssba.com 42 points 6 months ago (2 children)

Interesting idea.

I submit another idea: that food grown is being harvested earlier for quick turnaround and, for example the fruiting parts, immature in comparison from years ago.

If the plant ramps up nutrient storage as seeds mature, early harvesting is counterproductive.

I'd love to test that idea!

[–] FuglyDuck@lemmy.world 32 points 6 months ago (1 children)

I suspect one would find both contribute, and also possibly soil depletion.

All I really know is that heirlooms taste better and are far more satisfying. But even just burpee seed tomatoes, letting them ripen on a still-live vine is insanely more flavorful than picking them green and letting them ripen in transit.

Or like with apples- they’re harvested in the fall, and stored just above freezing.

Ultimately the cause is commercialization, if there’s More ways it happens.

[–] tal 9 points 6 months ago (1 children)

I don't know about tomatoes, but with stawberries, that's just water. You sell strawberries by mass, so in the store, we have very large ones with a lot of water.

I've had wild strawberries a few times. They have a much stronger flavor, but they're also tiny compared to commercial ones.

[–] FuglyDuck@lemmy.world 11 points 6 months ago

Growing the same basic varieties, it’s definitely within the same mass range you’d expect. Keep in mind it’s not just absorbing water, when it ripens on a still-in-the-ground vine, it’s also absorbing nutrients etc.

Commercially grown tomatoes are cut off from that and left to ripper on their own. The flavor is almost entirely different. Keep in mind that commercial varieties aren’t any where close to ready when they’re picked. (This includes the “vine on” things they like to sell now too.)

A tomato is “good enough” when it’s yellow, picking them can keep the plant producing well into fall.

I’ve had plants that have gone the better part of seasons before it got… unwieldy in the aero racks, but I’m forcing year round in a greenhouse.

they’ll still be amazing, but not quite as amazing if you let it come off after a gentle twist. Also, if you’re normal and growing outside, rain can cause splitting, so it’s best to pull it in early if that’s expected.

Just some learned advice… resist the temptation do blackberries or raspberries inside a greenhouse…. Yeah. That’s a war….

[–] mindlight@lemm.ee 20 points 6 months ago (2 children)

Yup. The short and simplified reason is that consumers ask for price and appearance rather than flavor and nutrition.

The tomatoes you buy in stores during winter (when tomatoes normally don't grow) are often speed-grown in greenhouses heated by fossil fuel.

If you ever grow your own tomatoes you'll understand what a tomato "should" taste like.

[–] CosmicTurtle@lemmy.world 10 points 6 months ago* (last edited 6 months ago) (1 children)

I've actually taken seeds from the tomatoes in stores and grown them myself. The flavor of a store bought tomato pales in comparison to a freshly picked tomato.

And I don't even like tomatoes.

[–] voracitude@lemmy.world 4 points 6 months ago (1 children)

The flavor of a freshly picked tomato pales in comparison to a store bought tomato

I think you got that backwards, unless you're over there eating store tomatoes in paroxysms of ecstasy?

[–] CosmicTurtle@lemmy.world 4 points 6 months ago

Ope. I do have that backwards. Thanks!

[–] EssentialCoffee@midwest.social 0 points 6 months ago (1 children)

My mom grew tomatoes every year until she couldn't physically garden anymore.

They were still disgusting.

[–] aniki@lemm.ee 3 points 6 months ago (1 children)

Ok. I grow tomatoes every season and they are fucking delicious on a whole different level.

[–] milicent_bystandr@lemm.ee 1 points 6 months ago

I suppose this proves the point that home-grown Vs commercial-grown isn't the only piece of the puzzle.

[–] aniki@lemm.ee 9 points 6 months ago

Right? We mono-crop loam into dust without any regenerative farming cycles to replenish the top soil.

[–] ColeSloth@discuss.tchncs.de 5 points 6 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.

[–] Dasus@lemmy.world 3 points 6 months ago (1 children)

breeding crops for mass production- and stupid things like being shiny red (as in certain apples) or other qualities that might make them more marketable instead of nutritious.

You're definitely not wrong in that at all.

But... they actually cover the apples in bug secretions to make them so shiny.

https://en.m.wikipedia.org/wiki/Shellac

[–] FuglyDuck@lemmy.world 4 points 6 months ago

Still, uh, organic….