Plant Food Toxins in an Evolutionary Context — George Diggs, Ph.D. (AHS14)

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Published 2014-08-22
Over the past several decades, tremendous strides have been made in the study of plant chemical defenses. These defenses include digestibility reducers, semiochemicals, hormone mimics, photosensitizers, cyanogenic compounds, and a variety of other toxins that interfere with herbivore structure or metabolism. A great deal is now known about their effects in a wide variety of animals ranging from insects to mammals. The toxic or otherwise damaging compounds in plants eaten by humans (e.g., gluten, hormone mimics, some lectins, photosensitizers, saponins, etc.) will be examined in the broader context of a widespread and evolutionarily old arms race between plants and animals.

Abstracts and information about the Ancestral Health Symposium can be found at www.ancestralhealth.org/ahs14-program.

All Comments (21)
  • @KenDBerryMD
    Great lecture! Much food for thought here...
  • I absolutely love a presenter who can clearly state that they don’t know an answer or have not researched enough on that topic to provide a clear enough answer. Rather than trying to come up with some crap answer, this guy admitted when he didn’t know. Thank you for being a very normal standard that all scientists should be.
  • @CheapSushi
    This is definitely an area that many vegetarians/vegans don't talk about.
  • I went carnivore this year, at age 64, after decades of being vegetarian or vegan. I feel fantastic and only regret not doing it sooner. Adult-onset eczema was the catalyst. It's completely gone now, despite the dermatologist's proclamation that eczema can't be cured, only "managed." Sure, more money that way.
  • @8platypus
    My dog almost died from eating a piece of raw red onion from the ground. I didn't know that onions & garlic were deadly to cats and dogs either.
  • @Jefferdaughter
    Since plants and herbivores co-evolved, many plants benefit from the pruning, soil stimulation, urine, manure - even the saliva of herbivores feeding on them. The acacia example, for instance: when giraffes were fenced out of certain areas where acacia grew, the acacia did not thrive and grow even better, as expected. Instead, those acacia trees declined! The soil life, the plants, the insects, herbivores, predators... they are all parts of one system.
  • @galladiel
    I wish he would've talked about other plant toxins sensitivity to which is more widespread among people. They include: oxalates, salicylates, phenols, nighshade alkaloids etc..
  • @user-nd1lx8co2g
    A normal and reasonable scientist explaining a controversial and misunderstood topic. A+, needs more research pumped into this area as it may be linked with many chronic illnesses and autoimmune conditions
  • @toni4729
    Plants bite me back, almost all of 'em, you're the first person I've ever heard say the same thing. Thank you.
  • @saraboop4497
    this is exactly why I had to go carnivore. My body went crazy and I ended up with an insane list of diagnoses for autoimmunities. I react to everything that is not meat, even dairy. But so far, so good! This is a great lecture! Thank you very much!
  • @MsAnchovey
    Not EVEN worth all this risk and worry when you dont NEED plants/veggies. I was taught you needed them but thank god for the truth finally. I'm a 90 to 99% carnivore. Lifes soooo much easier now and feel so much healthier!!
  • @whisperingsage
    Round Up also changes dna when applied to wheat so you're not just dealing with gluten and lectins in wheat, but also the farming practice of using Round Up for a quick harvest.
  • @jonassalk1387
    One answer to question at 43m30s : Some cultures that eat certain beans with highly toxic lectin levels, cook the beans in milk. This de-toxifies the lectins by binding them to a component of the milk. This effectively de-activates the lectin.
  • @LBJTV
    It's a business. Hospitals have to make money somehow. They work hand in hand with big food and media corporations.
  • @hgc1581
    Increase consumption of quality grass fed animals and wild caught fish. Nose to tail, plenty of highly quality, nutrient dense organ meat. 80% animals, 20% plants
  • @Jefferdaughter
    On mushrooms, toward the end,, all mushrooms should be cooked before eaten. Button mushrooms are fine raw in small amounts, but even they should be cooked.
  • @mws121269
    Great information & another reason I’m glad I’m a Zero Carb Carnivore🥩🥓💯💯💯
  • @rubo1964
    In short vegetables are mostly man made and overrated as food driven by big agriculture industry
  • @the7thwreck
    Vegans: *fingers in ears, singing 'LA LA LA LA!!!*
  • @Marco-jx9rr
    The worst health condition in my life was the year I sticked to a so called whole food plant based diet. What a mess. Fact is whole plants are more problematic than refined carbs. The last have no nutrition, sugar apart, but much better a cup of white rice or at most some boiled veggies, for taste, in a meat centered nutrition, than that crazy amount of beans I had to eat to sustain the sport activities (and losing strength and muscles nevertheless).