The Hungry Microbiome: why resistant starch is good for you

The Hungry Microbiome: why resistant starch is good for you

(Narrator) We know that many
plant foods benefit our health. Scientists now believe one reason for this lies
with the gut Microbiome the bacteria in your intestines. Your microbiome is nourished
by meals like this, rich in one type
of dietary fibre, called resistant starch. Resistant starch can’t be
digested by your body, but instead becomes food
for your gut bacteria. Most starch is easily digested. Starch is dissolved
in the small intestine and then absorbed by your body, providing you with
energy and nutrients. The remaining, non-digestible
portion is called Resistant starch. The Resistant starch continues
its journey through your gut and arrives at the
large Intestine. Here, we see that the Resistant
Starch has become exposed to the healthy bacteria
of the gut microbiome. This species of bacteria specialize in
breaking down resistant starch. This breakdown process
provides the bacteria with the fuel they
need to survive. As they use the
starch for energy, they release small
carbohydrate molecules. The neighbouring bacteria
feed on these carbohydrates. As the bacteria feed, they excrete even smaller
molecules as waste. One of the final waste
products is called butyrate, an energy source for your body. As the butyrate builds up, it is absorbed by the
large intestine. The presence of butyrate
encourages blood to flow into the vessels of the large
intestine, keeping the tissue healthy. If your diet includes
enough resistant starch, these cells will use butyrate
as their main source of energy. Here, we can see the
molecular surface of one of the intestinal cells. The surface is covered
in special proteins that actively pump butyrate
molecules into the cell. Once inside, they can be
harvested for energy. In addition butyrate
has other benefits. Intestinal cells are
sensitive to DNA damage, caused by environmental factors. This cell’s DNA
has been damaged, resulting in a mutation. More damage can accumulate
over time as the cell divides, which could lead to
colorectal cancer. But, a steady supply of butyrate allows the damage to be
more easily detected, and, the cell can activate a
suicide program in response. Because the damaged
cell destroys itself, it can’t progress
to form a cancer. A starved microbiome is unable
to protect you from cancer. By eating foods rich
in resistant starch, you can nourish your microbiome
and improve your health! [Music plays]

63 Replies to “The Hungry Microbiome: why resistant starch is good for you

  1. You might want to check my gut.  I've been on a starch-free diet for over 13 years. I'm still kickin'.   Trying to starve Klebsiella Pneumoniae.

  2. Wow, Thank you Csiro.

    Excellent video very informational for health wise & great animation.

    Would love to see more of these health videos, immune system & other beneficial foods for the body.

    Well done, A+ thumbs up.

  3. Incredibly beautiful and informative! I have suffered chronic illness my whole life and am undergoing a transformation at the moment. Resistant starch has definitely played a part in that. Can't wait to add this video to  my blog. Thanks again 🙂

  4. Nicely produced video! I hope people watching, realize that they need to take a reputable probiotic supplement to rebalance their small and large intestine populations, if they have taken a course of antibiotics, or been eating "sterile" foods for any time. I prefer the dual encapsulation technology used in the vegetarian probiotic supplement sold at Life Extension, because it insures that the organisms arrive alive in the small intestine and then "down the ole alimentary canal" – of course someone can also make their own live fermented food, as suggested by Dr Mercola. We're currently using both methods, and have to give both a big thumbs up!

  5. If butyrate is so healthy for the gut, does that mean we should be eating more butter as it is the richest source of butyrate that you can eat? I also have potato starch (RS-4) on the odd occasion.

  6. Awesome video.anybody still remember their parents scratching their heads trying to decide whether or not to buy a set of encyclopedias for you guys,they werent cheap.the internet is so awesome.

  7. Very nice animation. LOVE it. Do you mind if I link it to our Youtube Channel (flozinc)?

    Couple of points: RS is one kind of fiber and the video talk about 1 of the 3 important SCFAs, namely butyrate (BT). The others are acetate and propionate. BT is important in many regards, including; (1) is the main energy source for colonocytes; (2) promotes growth and proliferation of normal colonic epithelial cells; (3) inhibits colon carcinogenesis; (4) inhibits colon inflammation and oxidative stress; and (5) stimulates fluid and electrolyte absorption, mucus secretion.

    But the point to consider is that most RS are digested in the proximal colon. So, most of the BT is produced and absorbed there and less ends of getting to the distal part of the colon. To get BT (and for that other the other 2 SCFA) to the distal colon (the site of most colon cancers), one needs to eat different varieties and mixtures of fibers, not just RS. Different fermentation rates and composition of the fiber dictates to some extent what kinds of SCFAs are produced where and by whch bacteria.

    RS is a critical nutrient that we should not shy away from, but rather embrace as part of a very healthy diet.

  8. One tiny criticism of an excellent video. It doesn't name these foods at all. Is it beans? Is it bananas? Is it both? Are there others? Do they just want to encourage you to visit the website? So I did.

    Potato sliced, boiled and cooled
    0.8 g

    Potato, steamed, cooled
    6 g

    Potato, roasted, cooled
    19 g

    Cashew nuts
    13 g

    Bananas, green
    38 g

    Bananas, ripe
    5 g

    Oats, cooked
    0.2 g

    Oats, rolled, uncooked
    11 g

    White beans, cooked/canned
    4 g

    Lentils, cooked
    3 g

  9. Wow, how cool! An excerpt about how different foods move through the digestive tract is here:

    And we and our microbiome all need to eat, so pictures and recipes of microbiome-friendly recipes are here:!make-the-plate/sirc9

  10. I was recently diagnosed with type 2 diabetes. Thus I've been doing some research on the web and came across this stuff called Potato Starch or what some call Resistance Starch. So I looked it up on Amazon and found 1LBS of Bobs Red Mill Potato Starch for $17, and change. The only trouble is when I read the Nutrition Facts under Sugars it said 25 GRAMS!
    I'm gonna take a wild guess and say you cannot go out and buy any old Potato Starch. Which by the way I was led to believe.
    If you would be kind enough to be more specific about what and maybe where to buy. I would greatly appreciate it.
    Thank you for the informative video.

  11. Big thanks for making this video. Every time I think, that I know much… YouTube say's – ,,Nope.. u don't! here watch this video“. I always knew, that we need to feed not our selfs, but rather the gut bacteria. And this video perfectly shows, and names it why. Exactly what I was looking for my arsenal of debates. And for a bigger picture -> our earth top soil works just like that. In order soil to stay fertile we need to keep care of that good bacteria (which makes nutrients available to the plants). Chemical fertilizers kills them and feeds only the plants. The connection between microbes and plants is ruptured. Compost tea, compost it self and charcoal propagates the growth of good bacteria.(Terra Preta). Now you should understand how our body is related with nature. Our guts are the soil that are hidden from us, but works on a same principle like soil where plants are growing. Try to compost meat, it will rot and attract pathogenic organisms. What about UNDIGESTED meat in our intestines? Should we get rid of eating it? I don't know… Man probably should eat meat according to his digestion strength? If for real.. Some ppl get sick after stopping eating meat. This is because we lost our ability (not eating right food) to be in a symbiotic relationship with good bacteria. And sustaining a good gut environment is a hard task. ( bc human food production is a subject for profit not human vitality). What we need to know? Human Gut Microbiome is the key! Now go (person who reads this) around the internet and find out what food is feeding them.. Be a farmer of your microbiome, because these tiny organisms are waiting to feed you ;]

  12. I saw this awhile ago and it really struck me then. Some time passed and I got an urge to be reminded of the wonder that lies inside us, and how we can take charge of our health. Fabulous, fantastic work guys. This stuff is truly inspiring.

  13. This is amazing. I am so impressed with this video. Thanks for such a detailed explanation of the gut Microbiome.

  14. I thoroughly enjoyed this video, found it very informative.
    Thank you for sharing. 🙂

    A while ago I read about cooking potatoes, then putting them in the fridge to be re-heated and eaten at a later date – it was something to do with the starch becoming resistant and being beneficial to health; for arthritis and ailments caused by leaky gut – can't remember exactly. But does that makes sense to you? Or anyone else on here?
    Thanks in advance if you have any knowledge about this. 🙂

  15. Lovely video! Would potatoes, rice and beans still contain resistant starch if they were to be reheated after being cooled down?

  16. This is what I keep telling everyone. Thank you so much for this visually beautiful and incredibly informative video. You are doing a great service to humanity. It is not ignored.

  17. Hi
    My name is Natália, I’m producer on TV program “Domingo Espetacular”, in the brazilian broadcaster “Record”.
    We are working on a report about microbes. We would like to use this vídeo in our program.

    I would like to know who can authorize us to use the video, so we can give the credits

    I await your return.

    Best reguards,
    Natália Hinoue

  18. Butyrate is also a Histone Deacetylase Inhibitor, which attenuates some of the behavioral problems in autistic children.

    Combined with something that antagonizes the kynurenine pathway, lowering the level of the neuro toxin quinolinic acid, and we can finally suppress many of the negative effects of this condition caused by Cholinesterase inhibitors like DDT, Chromated Nicotine(Cigarettes), Organophosphorous and Organochlorine pesticides.

    Until then, Folate during pregnancy, which works on the same methylation pathways as Choline, is the only answer ;/

  19. Nice animation however it appears to be only a small part of the picture. Another part of the story for seekers of good health Keep digging.


  21. Could you make a follow-up video on increasing resistant starch by cooling it down? Is it true or is it a myth? Thank you

  22. "resistant starch become exposed to the healthy bacteria of gut microbiome" what is the healthy bacteria called ? 🙂

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