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Medicine

Study Finds Fermented Foods May Alter Your Microbiome, Reduce Inflammation, and Improve Your Health (nytimes.com) 118

A new study finds that eating fermented foods like yogurt, kimchi, sauerkraut and kombucha increase the diverse of gut microbes — and "may also lead to lower levels of body-wide inflammation, which scientists increasingly link to a range of diseases tied to aging," reports the New York Times: The latest findings come from a study published in the journal Cell that was carried out by researchers at Stanford University. They wanted to see what impact fermented foods might have on the gut and immune system, and how it might compare to eating a relatively healthy diet full of fruits, vegetables, beans, whole grains and other fiber-rich foods... [Among the study's participants], the fermented food group showed marked reductions in 19 inflammatory compounds... For people in the fermented foods group, the reductions in inflammatory markers coincided with changes in their guts.

They began to harbor a wider and more diverse array of microbes, which is similar to what other recent studies of people who eat a variety of fermented foods have shown. The new research found that the more fermented foods people ate, the greater the number of microbial species that bloomed in their guts... Higher levels of gut microbiome diversity are generally thought to be a good thing. Studies have linked it to lower rates of obesity, Type 2 diabetes, metabolic disease and other ills...

Suzanne Devkota, the director of Microbiome Research at Cedars-Sinai Medical Center in Los Angeles, who was not involved in the new study, said it has long been assumed that eating fermented foods had health benefits but that the new research provides some of the first "hard evidence" that it can influence the gut and inflammation.

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Study Finds Fermented Foods May Alter Your Microbiome, Reduce Inflammation, and Improve Your Health

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  • by Papaspud ( 2562773 ) on Sunday August 15, 2021 @11:38AM (#61694747)
    then distilling that essence must be even better... at least that is my theory.
    • by ShanghaiBill ( 739463 ) on Sunday August 15, 2021 @11:59AM (#61694809)

      then distilling that essence must be even better...

      That might not work. For instance, foods with antioxidants are known to promote health. But when the anti-oxidants are isolated and taken in pill form, they provide no measurable benefit.

      According to TFA, the benefit of eating fermented foods appears to be related to promoting a highly diverse gut biome. That may be from consuming live bacteria rather than some "essence".

    • "then distilling that essence must be even better... at least that is my theory."

      Yes, your Sauerkraut-Whiskey will be a hoot.

  • by UnknowingFool ( 672806 ) on Sunday August 15, 2021 @11:42AM (#61694759)
    To test this, I will need a case of beer. Sacrifices must be made.
    • by slazzy ( 864185 )
      Cheese is fermented too, so don't forget the pizza with the beer!
    • Read my thoughts exactly. Gonna have to step up my intake of beer.

      • by edis ( 266347 )

        I doubt there is much of bacteria in industrial pasteurized beer. While alcohol abuse and even modest consumption are to provide you with a bunch of disservice.

        • by dwywit ( 1109409 )

          Simple - brew your own.

          It's fun, it's cheap, and your can brew it exactly how you like it, including the alcohol levels.

          • Ok, I'll bite. Recommendations for how to start homebrew beer without buying a pile of stuff?

            • Re:Homebrew beer (Score:4, Informative)

              by dwywit ( 1109409 ) on Sunday August 15, 2021 @07:25PM (#61695873)

              You do have to buy some stuff, but it'll pay for itself within a couple of brews. Start with kits (malt extracts). All of this should be available at home brew shops.

              1. fermenter with airlock and tap, like this one:
              https://www.ebay.com.au/itm/280641622145 [ebay.com.au]

              2. sanitiser - sodium hypochlorite or similar - VERY IMPORTANT! Cannot stress this enough. Spoiled brews are heart-breaking.

              3. Bottles and caps (time consuming, but cheap), or kegs and CO2 bottles & fittings (easier, but more costly to start with).

              4. Kit of favourite style, e.g. dark ale, lager, bitter, pilsenser. Home brew shop can also help to get it close to your favourite commercial style - starter kit, additives, etc. Standard kit will ferment out to about 3.5%ABV. 1kg/2.2lbs of dextrose will raise that to about 4.5%. Dextrose only, do NOT use table sugar.

              5. join a forum, e.g. https://aussiecraftbrewing.com.au/ [aussiecraf...ing.com.au]

              You should be able to get started with less than $200 worth of stuff. Subsequent brews will cost $40 of supplies, and your time & effort. If you find that you like it, you can move on to full-grain brewing, but that involves more gear.

              • You should be able to get started with less than $200 worth of stuff. Subsequent brews will cost $40 of supplies, and your time & effort. If you find that you like it, you can move on to full-grain brewing, but that involves more gear.

                When I was brewing - I'd make certain to drink the yeast at the bottom of the bottle. And some in my family didn't like the yeast, so my mom would get it when she collected the dead soldiers.

                Some people say it goes right through them. I suspect that's actually one's body adjusting their biome. After a bit of yeasting, they don't have that problem any more.

                But my family has been eating fermented stuff pretty much forever. Marmite/Vegemite might be similarly good - although a true acquired taste.

            • Just to add to what dwywit said (with one point of difference);

              I have a pair of 50 litre steel kegs that I brew my beer in. It dispenses straight from the keg with the help of a CO2 cylinder, which saves on hours of cleaning, bottling and capping. The whole setup cost about $800.

              But that was ten years ago. Since then, I use a can of brewing concentrate and a three kilo bag of raw sugar per brew (there's nothing wrong with raw sugar [kissmybrew.com]). That costs about $20 and less than an hour's work for about 48 litres of b

              • Thanks to you both. Much appreciated. I like the keg idea, but that's a high startup cost.

                • In Australia, it costs $52 for 9 litres of cheap beer. (24 cans of 375ml)

                  At $20 for 48 litres, instead of $277, it doesn't take very long at all to become a worthwhile proposal. Even more so if you like the good stuff [liquorland.com.au].

                  • How long does that 48 liters keep? I could easily see it taking me a month or longer to go through that much beer at home. I worry that it'd go off, even in a CO2-pressurized keg.
                    • by Tool Man ( 9826 )

                      How long does that 48 liters keep? I could easily see it taking me a month or longer to go through that much beer at home. I worry that it'd go off, even in a CO2-pressurized keg.

                      The main things affecting beer's longevity are oxygen and sunlight. So... ages and ages in a keg I would think.

                    • Beer won't go bad in the keg. It's lightproof, and there's no oxygen in the keg, only CO^2, so it would only mature the flavour further.

                      Oxygen would be bad, because it allows any Acetobacter that sneak in to do their thing, and you end up with a lifetime's supply of brown malt vinegar instead.

                      Light is worse, because it breaks down the iso-alpha acids released by the hops. The resulting compounds bind with proteins that contain sulphur to form 3-methyl-2-butene-1-thiol, and that shit is nasty

                      But an airtight

            • by cusco ( 717999 )

              Make your own wine, instead. All you need is a 5 gallon glass jug (don't use the plastic ones, it affects the taste), a piece of mesh cloth, a siphon, and a bubbler that costs a couple of bucks. I make wine the way my great-grandfathers did. Last weekend I picked about 4 gallons of blackberries, squished them a little with a potato masher, and then left them in the bucket with a clean cloth over the top. This allows the natural yeasts to start reproducing and crowd out the bacteria. This weekend I'll s

              • Notice that nowhere did I mention adding yeast or using a hygrometer. Using natural yeast and letting it find its own specific gravity results in a less consistent brew, which many people find unacceptable. For myself I like doing it that way, because while some years are better than others you'll occasionally get that amazing knock-your-socks-off good batch that the more "professional" process will never deliver.

                You are really close to making a Lambic. I do like a Framboise or a Kriek every once in a while.

          • by edis ( 266347 )

            Simple - brew your own.

            It's fun, it's cheap, and your can brew it exactly how you like it, including the alcohol levels.

            Been there - any alcohol stays alcohol. I was making wine, becoming exposed to the apple garden, also wine from dandelions, brilliant by itself. But it all ended drunk. I would rather suggest skipping on alcohol, tobacco, if we are here after advising.

        • The solution is obvious, switch to cloudy wheat beer.

          • by edis ( 266347 )

            The solution is obvious, switch to cloudy wheat beer.

            Solution is to drop alcohol, take seriously fermented food products.

            • No, the obvious solution is to drink sour beers -- fermented with both yeasts *and* lactobacillus. You can have your food, and *drink* it, too!
        • Berliner Weisse.
  • by Pollux ( 102520 ) <speter@[ ]ata.net.eg ['ted' in gap]> on Sunday August 15, 2021 @11:43AM (#61694767) Journal

    A new study finds that eating fermented foods like yogurt, kimchi, sauerkraut and kombucha increase the diverse of gut microbes ...And barley. I swear I heard someone say fermented barley.

    • by HiThere ( 15173 )

      Probably, but my suspicion is that it only works if the food contains a live culture, so don't pasteurize your beer.

    • Re:And... (Score:5, Informative)

      by fazig ( 2909523 ) on Sunday August 15, 2021 @01:41PM (#61695101)
      Not that far off.

      Briefly, the major fermented foods consumed were beer, kimchi, kombucha, pickled vegetables, sauerkraut, and yogurt.
      [...]
      Of these eight participants, two reported that they consumed wine or beer; one participant reported consuming yogurt, cider, wine, and beer; and five participants reported consuming unspecified fermented foods.

      Source: https://journals.asm.org/doi/1... [asm.org]

      • by q_e_t ( 5104099 )
        I have unspecified fermented foods in my fridge too.
  • Being fermented is only a step away from being rotten. Of course your gut microbes will change. It's trying to prevent you from being poisoned by that almost rotten food.

    • by fazig ( 2909523 )
      Better don't look up what your gut bacteria does. You might die from the nacebo poisons.
    • Uum, you should look up what bread and beer and cheese and salami/ham and pickled vegetables and dry-aged meat and cocoa and black tea etc, etc, etc are...

      Also, you should look up what digestion actually is. (Hint: It's controlled rotting.)

      Actually, hell, when you see something rotting on the ground, that's essentially just the digestion of the plants around it in action. Because the digestive system of plants is the soil around their roots.

      I seriously wonder how you managed to grow up yet stay so shockingl

    • by piojo ( 995934 )

      Being fermented is only a step away from being rotten. Of course your gut microbes will change. It's trying to prevent you from being poisoned by that almost rotten food.

      Does the gut even have much control over its microbes? I thought the only anti-poison control was vomiting and/or diarrhea.

  • by ebonum ( 830686 ) on Sunday August 15, 2021 @12:04PM (#61694823)

    week old leftovers?

    • I'd rather have week old home-cooking leftovers than fresh McDonald's.

      • by edis ( 266347 )

        Week is long term, so game can be risky. Remember that buddy, who used to boil rice for the whole week at once, which ended lethal. Be careful. What certainly works for me - reheat leftovers well every second day, especially when these would not fit into fridge. It is much safer in latter, still week is long shot.
        Anyway, this has very little to do with fermented food. I was excited by fermenting apples this year in sour liquid with some species, they can be not even ripe, but taste excellent, the skin worki

        • If your fridge is kept between 33 and 36 Fahrenheit a week is not particularly long.

          • by edis ( 266347 )

            If your fridge is kept between 33 and 36 Fahrenheit a week is not particularly long.

            It's 'bout 0,5 -- 2 Celsius here. I support your statement, yet in mine only limited space is at that temperature, I call it zero zone. Still, processed and not preserved foods are especially vulnerable, speaking in terms of weeks. Just be as careful.

    • Well, sauerkraut/kimchi is finely sliced cabbage, carrots and onions left unrefrigerated for a week, or even two, so there's your answer.

      Although....You do need to keep them fully submerged in an anaerobic aqueous solution with not less than 2% of the total weight being sodium chloride. Otherwise you may end up breeding up a nice healthy colony of Clostridium Botulinum instead.

      • "Well, sauerkraut/kimchi is finely sliced cabbage, carrots and onions left unrefrigerated for a week, or even two, so there's your answer." You forgot salt. You need salt to inhibit pathogenic bacteria, and give the lactobacilli a chance to get a good foothold.
        • > sodium chloride

          I know not reading TFA is de rigueur around these here parts, but comments you're actually in the process of replying to??

    • week old leftovers?

      Gas station sushi or Egg salad sammiches?

  • So save the geeks. Someone -please- figure out where you can order actually-good kimchi delivered, and then just move their entire company into an Amazon warehouse.
  • Mechnikov (Score:3, Informative)

    by bill_mcgonigle ( 4333 ) * on Sunday August 15, 2021 @12:29PM (#61694881) Homepage Journal

    It's funny that more than a hundred years ago Mechnikov identified a group of Bulgarians that lived a very long time and what they all had in common was eating a local yogurt. This yogurt's culture was isolated and the /l. bulgaricus/ strain was identified. It's used by almost all commercial yogurt producers today.

    The Bulgarians aged slowly due to low levels of vascular inflammation.

    • Dannon used people from Georgia (not the one in the USA) in their ads at one time. Everyone in the ad was supposed to 100 years old or something like that. Turned out they were old, just not that old.

  • ... the cause, and solution, to all of life's problems.
  • ...let me say: No shit Sherlock!

  • Is this the study that wraps up the summaries of all the other studies just to make sure?
  • Not quite off topic. This article focuses on microbiome diversity as a way to lower inflammation. Lowering inflammation is the goal, microbiome diversity is a way to attain it. I have another method that works surprisingly well. About 2 years ago I looked up "natural anti-inflammatory" and realized that my spice rack had most of the best ones. Turmeric is top of the line, but also oregano, rosemary, sage, cloves, cayenne pepper, fennel, and garlic. So I mixed a bunch of old, dried stuff together and star
    • by edis ( 266347 )

      Without emphasizing anti-inflammatory feature alone, microbiome is your great companion. You have provided another example how enriching your intake makes great difference to your well being. Similar goes to fermented, live foods, which are extremely stimulating rich microbiome.

    • Couldn't you cook your food with all those spices (fresher the better) and enjoy them more?

      • They don't all go together well. Tracking them to be sure you get enough of each would be arduous. But yes, a heavy hand with spices in general is a good idea, as long as you have the taste and cooking skill to do so.
    • by cusco ( 717999 )

      In case you didn't know, oregano, sage, and rosemary will grow in pretty much any yard in North America, and if you're not careful will become a serious annoyance as they spread and take over (mint too, and if you let lemon balm go to seed once you'll never get rid of it.) My first experimentation with fresh herbs in cooking were because someone planted them in a park down the street and they went nuts.

  • Proving it now as I drink a cool beer after working in the yard.
  • by devslash0 ( 4203435 ) on Sunday August 15, 2021 @06:27PM (#61695745)
    Much of Eastern European food is based on fermented ingredients - milk, vegetables, fruit. I sincerely felt healthier and stronger living there and enjoying the local cuisine than I am feeling now in Western Europe.
  • Excluding things that contain alcohol, I find most fermented things to be pretty unappetizing. Worcestershire sauce, mostly as a marinade, is about my limit.

    So, can I get the good bits in a pill or what?

    • by amp001 ( 948513 ) on Monday August 16, 2021 @08:54AM (#61697039)
      Pills probably won't work. But, greek yogurt with some granola and berries is a nice breakfast. My son brews kombucha for a local company, and that is pretty tasty. It starts out as very sweet black tea fermented with a SCOBY (symbiotic combination of bacteria and yeast). So, it ends up being acidic rather than alcoholic. It's flavored with various spices and fruits, depending on the product. Done properly, the flavors should balance out the acidity nicely. You want to buy from a local company to ensure you're getting something that hasn't been filtered or pasteurized. It should be refrigerated. Also, keep an eye on the total calories - some places add more sugar after fermentation, and they often have to filter or pasteurize to avoid a fermentation restart. Look for bottles that have 30-35 total calories rather than something in the soda range. You can make it at home as well if you enjoy drinking it - you can buy a SCOBY disk, or try to nurture one on your own from an off-the-shelf bottle of Kombucha.
      • Eeeww.

        You just listed incredibly gross things. The smell of kombucha makes me nauseous as does the taste of yoghurt. I'm going to stop because I'm getting there just thinking about it this much.

"An idealist is one who, on noticing that a rose smells better than a cabbage, concludes that it will also make better soup." - H.L. Mencken

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