Could lectins explain why those who eat more beans and whole grains have less cancer?
Lectins are too fault for the big “White Kidney Bean Incident” in Japan in 2006. A TV program on a Saturday night introduced a new way to lose weight. The method was simple: roast some dry, raw, white kidney beans in a pan for three minutes, grind the beans to a powder, and then dust them on rice. Within a few days, a thousand people became sick, some with diarrhea and vomiting so severe that they ended up in the hospital. Why? Lectin poisoning. Three minutes of dry heat is not enough to destroy the toxic lectins in kidney beans. If you don’t soak them, you have to Cook large kidney beans for a full hour to completely destroy all lectins. However, the first time you soak them overnight, 98 percent of the lectins are gone after just 15 minutes of cooking and all of them are gone by half an hour as you can see at 0:44 in my video Are Lectins In Food Good Or Bad For You?. And with researchers checked With the white beans, they found that roasting them for three minutes didn’t help. No wonder people got sick. However, 95 percent of the lectins were inactivated after three minutes of boiling and completely inactivated after ten minutes of boiling. Obviously, “don’t eat raw beans” is a traditional admonition in Japan to prevent bowel problems “- and now we know why.
While canned can be complete remove Lectins from most canned beans, may have some residual lectin activity remain in canned beans, although apparently not enough to cause toxicity. And ironically, “How many lectins can Be beneficial by stimulating bowel function, limiting tumor growth, and alleviating obesity. ” What? I found lectins poisonous.
As long as people have speculated that dietary lectins are harmful, others have been harmful supposed that they can be protective. “If this theory is correct, appropriate lectins by mouth should be of use in prophylaxis [prevention] (and possibly treatment) for colon cancer. “Or we could just eat our beans, of course.
Interest in the alleged anti-tumor effects of plant lectins began in 1963 with the discovery that lectins could distinguish between cancer cells and normal cells. Massachusetts General Hospital researchers found A substance in wheat germ – the lectin in whole grain wheat – that appeared to be “tumor cell specific” and clumped the tumor cells together while leaving the normal cells almost entirely alone. In fact, it’s so specific that you can to take a stool sample from someone and, based on the lectin binding to the colon mucous cells, which are effectively shedding into the feces predict the presence of polyps and cancer.
Then it was discovered These lectins were not only able to differentiate between the two cell types, but also to wipe out the cancer cells, while the normal cells were largely left alone. For example, the same kidney bean white lectin as you can see in mine at 2:53 Videowas found almost completely suppress the growth of human head and neck cancer cells, liver cancer cells, breast cancer cells, and cervical cancer cells (at least for the most part) in about three days – but that was in a petri dish. These petri dish studies are largely the basis for demonstrating the antitumor activity of plant lectins. How do we even know that dietary lectins are absorbed by our body?
Colon cancer is one thing. The fact that lectins can kill Off-colon cancer cells in a petri dish may be applicable as lectins that we eat can come into direct contact with cancer or precancerous cells in our colon. “Even more exciting is the potential for effective cancer cell rehabilitation. The “Loss of Differentiation and Invasion are the histological characteristics of malignant cells, ‘which means that when a normal cell turns into a cancerous cell, it is prone to it to lose its specialized function. Breast cancer cells become less breast-like and colon cancer cells become less colon-like. These researchers showed for the first time that the lectin in fava beans can take up colon cancer cells and turn them back into normal cells. As you can see in mine at 4:13 Videobefore exposure to the fava bean lectins, the cancer cells were growing in amorphous lumps. However, after two weeks of exposure to the fava bean lectins, the same cancer cells returned to growing glandular structures, as did normal colon problems. Therefore, diet lectins or taking in a pill may “slow the progression of colon cancer,” which may help explain why beans, peas, chickpeas, and lentils appear to be through the diet to reduce The risk of colon cancer is based on 14 studies with nearly two million participants. Okay, but what about cancer outside the digestive tract?
“Although lectin-containing foods like beans and whole grains are often consumed cooked or otherwise processed, these treatments may not always be possible inactivate the lectins… For example, lectins have been found in roasted peanuts… “Peanuts are legumes and we don’t eat them cooked, only roasted or even raw. Can we include the lectins in our system? Yes. As you can see in mine at 5:12 am VideoWithin an hour of eating raw or roasted peanuts, you can detect the peanut lectin in most people’s bloodstream. The same goes for tomatoes. Some of the non-toxic lectins in tomatoes, too makes it down into our gut and into our blood. Wheat germ agglutinin, the wheat lectin known as WGA, does not appear to do this do however, it does get into our bloodstream, even apparently eat the equivalent amount of wheat germ in more than 80 slices of bread. And if you’ve eaten something like pasta, boiling during the cooking process can wipe out the lectin anyway.
In terms of phytochemicals in the fight against cancer, lectins can “resist Digestion results in high bioavailability, potentially allowing the host’s cellular mechanisms to realize the full potential of the… dramatic anti-cancer benefits of lectins that lectins offer. However, these dramatic benefits have yet to be demonstrated in humans. However, we do know that population studies show “That eating a plant-based diet is strongly linked to a reduced risk of developing certain types of cancer.” Plant-based people may eat fewer carcinogens, but plants have all of these active components that appear to protect against “initiating, promoting, or progressing” cancer. Perhaps lectins are one of those protective compounds. We know people who eat More beans and whole grains tend to get less cancer overall, but we’re not sure why. Now you could say: “Who cares why?” Well, big pharma takes care. You can’t make as much money with healthy food as with “lectin-based drugs”.
Would you like to learn more about lectins? Check out my videos The plant paradox of Dr. Gundry is wrong and How to avoid lectin poisoning.
Lectins remind me of the story about phytates. Other ingredients in beans and whole grains, phytates, were initially viewed as harmful, but more recently there has been evidence that the opposite may be the case. Check Phytates for the rehabilitation of cancer cells and Phytates used to prevent osteoporosis.
What else can explain the protective effect of beans? See for example Gut dysbiosis: starvation of our microbial selves. Soybeans can especially protect against certain types of cancer, as you can see in FIG BRCA breast cancer genes and soy.
Michael Greger, MD
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