The trillions of good bacteria in our gut can be thought of as an additional organ—metabolizing, detoxifying, and activating many crucial components of our diet. The formation of lignans from phytonutrient precursors found predominantly in flax seeds is one such example.
Flax and Fecal Flora
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Flax has the highest content of “lignans” of all plant foods used for human consumption. The reason lignans is in quotes is because flax doesn’t actually contain lignans—just like broccoli doesn’t actually contain sulforaphane. Flax does contain lignan precursors, though, which the good bacteria in our gut turn into lignans, which we can then absorb. So, lignans are more of a team effort.
We used to think our colon was just some transit tube that absorbed excess water. Now we know it houses what could be considered an entirely separate organ inside the body: our gut flora, our trillions of good bacteria; the densest concentration of microbes found anywhere on Earth.
Exceeding the metabolic capacity of our liver by a factor of a hundred, our good bacteria detoxify some compounds, and activate others, boosting their bioavailability.
In fact, that may be why urinary tract infections have been associated with breast cancer risk. The rounds of antibiotics may be wiping out some of the good bacteria that are helping us take advantage of all the wonders of a plant-based diet.
I think most people only tend to think of our gut bacteria when there’s a problem. But having good gut flora is more than just avoiding diarrhea; it’s about maximizing our absorption of phytonutrients in our diet.
To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring, watch the above video. This is just an approximation of the audio contributed by veganmontreal.
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- Possemiers S, Bolca S, Verstraete W, Heyerick A. The intestinal microbiome: a separate organ inside the body with the metabolic potential to influence the bioactivity of botanicals. Fitoterapia. 2011 Jan;82(1):53-66.
- Singh KK, Mridula D, Rehal J, Barnwal P. Flaxseed: a potential source of food, feed and fiber. Crit Rev Food Sci Nutr. 2011 Mar;51(3):210-22.
- Knekt P, Adlercreutz H, Rissanen H, Aromaa A, Teppo L, Heliövaara M. Does antibacterial treatment for urinary tract infection contribute to the risk of breast cancer? Br J Cancer. 2000 Mar;82(5):1107-10.
Image thanks to deanfotos66 / flickr
Flax has the highest content of “lignans” of all plant foods used for human consumption. The reason lignans is in quotes is because flax doesn’t actually contain lignans—just like broccoli doesn’t actually contain sulforaphane. Flax does contain lignan precursors, though, which the good bacteria in our gut turn into lignans, which we can then absorb. So, lignans are more of a team effort.
We used to think our colon was just some transit tube that absorbed excess water. Now we know it houses what could be considered an entirely separate organ inside the body: our gut flora, our trillions of good bacteria; the densest concentration of microbes found anywhere on Earth.
Exceeding the metabolic capacity of our liver by a factor of a hundred, our good bacteria detoxify some compounds, and activate others, boosting their bioavailability.
In fact, that may be why urinary tract infections have been associated with breast cancer risk. The rounds of antibiotics may be wiping out some of the good bacteria that are helping us take advantage of all the wonders of a plant-based diet.
I think most people only tend to think of our gut bacteria when there’s a problem. But having good gut flora is more than just avoiding diarrhea; it’s about maximizing our absorption of phytonutrients in our diet.
To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring, watch the above video. This is just an approximation of the audio contributed by veganmontreal.
Please consider volunteering to help out on the site.
- Possemiers S, Bolca S, Verstraete W, Heyerick A. The intestinal microbiome: a separate organ inside the body with the metabolic potential to influence the bioactivity of botanicals. Fitoterapia. 2011 Jan;82(1):53-66.
- Singh KK, Mridula D, Rehal J, Barnwal P. Flaxseed: a potential source of food, feed and fiber. Crit Rev Food Sci Nutr. 2011 Mar;51(3):210-22.
- Knekt P, Adlercreutz H, Rissanen H, Aromaa A, Teppo L, Heliövaara M. Does antibacterial treatment for urinary tract infection contribute to the risk of breast cancer? Br J Cancer. 2000 Mar;82(5):1107-10.
Image thanks to deanfotos66 / flickr
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Flax and Fecal Flora
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URLNota del Doctor
Be sure to also see Breast Cancer Survival and Lignan Intake if you missed it. The sulforaphane story I refer to in this video can be found in The Best Detox.
Note that the bladder infection study I reference is open access, and can be downloaded by clicking on the link in the Sources Cited section, above.
Please also check out my associated blog posts for some more context: Breast Cancer Survival & Soy, Health Food Store Advice: Often Worthless or Worst; How to Enhance Mineral Absorption; Boosting Gut Flora Without Probiotics; Treating an Enlarged Prostate With Diet; Flax Seeds for Prostate Cancer; Flax & Breast Cancer Prevention; Treating Breast Pain with Flax Seeds; and How Probiotics Affect Mental Health.
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