※ 引述《minpanda 看板: FITNESS》之銘言：
:《植物的逆襲》
https://nutritionstudies.org/the-plant-paradox-by-steven-grundy-md-commentary/
T. Colin Campbell有評論:
It’s hard to turn on the TV these days without hearing about “fake news.”
The proliferation of fabricated “facts” and ignored truths are a great
menace to our society. As others have pointed out before, we’ve been living
with fake news in consumer-level nutrition messaging for years. It doesn’t
matter how many PhDs a person may have – standing in front of the nutrition
bookshelf at the bookstore is a sure path to an overwhelming sense of
confusion and uncertainty.
Recently a new book has captured public attention, The Plant Paradox, by
Steven Gundry, MD, focused on the surprising claim that lectins are the
source of most, perhaps all human disease. It’s too time consuming to swat
away every bit of nonsense that hits the popular media in nutrition, but we’
ve been getting a lot of questions about this book and its premise, that
lectins are the true culprit of our ills.
Dr. Gundry writes on his website, “I believe I’ve discovered some
unconventional truths about human nutrition.” Unconventional? Yes. Truths?
Not so fast. The Plant Paradox is written by an author who reminds us of his
distinguished career in medicine, including his experience in research. Dr.
Gundry says, “with all modesty” that he has “found there is a common cause
for most health problems” and further that “it is based on ample research,
including [his] own papers, published in peer-reviewed medical journals, but
that no one has put it all together before.” He goes on to say that
so-called “health ‘experts’ have pointed to our laziness, our addiction to
fast food” etc., but according to him, “sadly, they are wrong … [and that]
… the real cause is so well hidden that you would never have noticed it.”
This sounds like we’ve come across quite the amazing secret, just now
uncovered by Dr. Gundry. So, he wants to educate us—but about what? The
first hint comes from the book’s title, “The Plant Paradox.” A reader
might think, “Aha, perhaps something is wrong with all that whole grain,
vegetable nonsense after all! I like this. I knew that there was a reason why
I never liked veggies and why I should, instead, be eating grass-fed meat!
This book is for me!”
So, what, specifically, is wrong with plants? According to this book, it’s
not only about that awful gluten that we have heard so much about but about a
whole class of “highly toxic, plant-based proteins called lectins” of which
gluten is a member. He says that “lectins are found not only in grains like
wheat but also in the ‘gluten-free’ foods like … many fruits, vegetables,
nuts, beans and conventional dairy products,” which “many of us regard as
healthy.” After consumption, they “incite a kind of chemical warfare in our
bodies, causing inflammatory reactions that can lead to weight gain and
serious health conditions.”
On pages 68-70, Dr. Gundry offers an enormous list of ailments that have
resolved in patients following his lectin-avoidance protocol, including a
huge variety of autoimmune diseases, cancer, heart disease and some of its
risk factors, weight problems, slow infant growth, mental health problems,
and some neurological conditions like Parkinson’s, dementia, and “cramps,
tingling, and numbness.” These would be earth-shattering findings, if true.
It’s particularly alarming because these findings lie in opposition to well
established observations about diet and health. For one, populations who have
transitioned to rich, Western diets generally adopt a diet lower in lectins.
A transition to a Western diet is characterized by more meat, more added fats
and sugars, and fewer beans and whole grains[1]. One of the commonalities of
the blue zones, areas of long-lived populations, is that they consume
legumes[2] (and Americans, by and large, don’t). Consumption of beans has
been shown to be beneficial for a wide range of diseases, including
diabetes[3], heart disease[4], cancer[5], and in weight management[6][7] (Dr.
Gundry allows vegetarians and vegans to eat beans, but only those that have
gone through a pressure cooker, and yet research demonstrating the huge array
of benefits of consuming beans does not require pressure cookers). Increased
whole grain consumption, compared to low whole grain consumption, has been
shown to be beneficial for a wide range of chronic disease as well, including
early death and death from cardiovascular disease[8].
Earth shattering findings demand extraordinary scientific evidence. It would
be nice to see some peer-reviewed science that supports his astounding
claims, so we took a peek through the early part of the book to see what kind
of references he offers.
His first big claim (pg xv) is that his findings are published in
peer-reviewed medical journals. His “peer-reviewed” medical publication
cited is an abstract published in the journal supplement for a poster
presentation. Making a poster to display at a conference is nice, but this is
a world apart from publishing actual clinical trial results in a peer
reviewed journal. In other words, there is no detailed publication of his
methods, his subjects, his results, or his intervention as would be commonly
expected in a normal publication. His glowing description of this abstract is
misleading, to put it mildly.