So What’s the Big Deal?
Studies are still somewhat preliminary
but wheat is showing linkages to a range of health implications, most
notably obesity and type-2 diabetes.
Davis blames wheat for the reason obesity has remained so
pervasive despite our efforts to exercise and cut down on calories and fatty foods. To understand this, we need to consider the glycemic
index (GI) of foods processed from wheat, which is a measure of the ability of
a given food to raise blood sugar (glucose) levels after being eaten. The higher the GI, the easier it is for our
bodies to increase sugar levels that are then stored as visceral fat…leading to
the proverbial wheat belly and, yes guys, “man boobs”. Wheat has an alarmingly high GI. Consider this: whole wheat bread (something that is supposed
to be the healthy option) has a GI of 72 while white bread has a GI of 69. But here’s the kicker – a Snicker’s Bar has a
GI of 51 and table sugar has a GI of 59.
Are you starting to see where I’m going?
Other health implications associated with wheat include heart disease,
cancers, cataracts, wrinkles, aging, and mental illness although scientific
evidence of these is a bit more scant.
How Did Wheat Become Unhealthy? Wheat wasn’t
always bad for us. When our grandparents
were younger (before the 1960s), wheat fields used to have stocks that were 4-5
feet high. But over the last several
decades, in our quest to increase consistent wheat yields and reduce costs to feed
the poor, we hybridized the wheat grain so aggressively that we genetically
transformed its composition. Using
excessive fertilizer to boost production, we dramatically increased the size of
the wheat seeds, making them too heavy for the 4-foot stock, which buckled and killed the plant. In response, the green revolution
changed the genetic composition of the wheat so that it was shorter and bulkier
to withstand the heavier seed head. That’s
why the wheat fields of today have stocks that are 2-3 feet high (see picture). But unfortunately no animal or human testing
was done on this new hybridized strain before entering the food system. So while a majority of the planet can now
access cheap wheat, we’re starting to pay the price. The breads, cookies, and pancakes of today
although similar in taste, smell and appearance to those our grandmother used
to make have very different biochemical properties. The processing of this strain of wheat
results in a super carbohydrate that is very easy to digest and turn into
sugar, hence the really high GI index.
How does this affect the daily consumer? It may or may not come as a surprise, but
wheat is everywhere! Walk into your
average Canadian staple Tim Hortons or American Dunkin Donuts and what you see before you is an explosion
of wheat from the double chocolate donut to the latest and greatest grilled
cheese on a Panini, to the wide assortment of muffins and bagels. At home, the story is no different. Gaze into your pantry and a majority of what
you’ll find in there has huge concentrations of wheat including but not limited
to breakfast cereals, pastas (god no!), potato chips, cookies, cakes, pies,
cupcakes, pancakes, waffles, beer, pita, couscous, rye, unbleached flour, whole-wheat
flour, barley, crepes, gnocchi, panko ,and sadly bread.
This really sucks!
Believe me, I’ve been working my way off wheat for the last several
months and it isn’t easy. The hardest
part is walking into a coffee shop or restaurant and realizing that 90% of what’s
on the menu has wheat and the other 10% is typically a bowl of cheap fruit or a
box of raisins! Bloody hell! And while these places are starting to offer
gluten-free options, most people don’t realize that these foods are actually
worse than eating the wheat.
Gluten-free foods are particularly important for those
people with celiac disease who are strictly intolerant of gluten. For them, eating wheat can kill them. So to meet the needs of these people, food
producers have had to find replacement ingredients for gluten. Enter things like corn starch, potato starch and
tapioca starch. But here's the problem, these starches have a GI index higher than
whole wheat bread – upper 70s and 80s.
So going gluten free may make sense for someone with celiac disease, but
it’s not the right thing to do for us who want to eat healthy. The only non-wheat bread I’ve been able to
find (and I’ve looked very hard) are those that have these starches in the ingredient list.
What are the Implications? Our highly industrialized and economic-centric
response to feeding the planet has unfortunately come at great cost. We only have so much land and with population
levels expected to reach 9 billion before coming back down, it’s going to be
harder and harder for us to eat healthy.
Just staying away from potato chips,
chocolate bars, sodas, and candies is not enough anymore. These were easy because they were meant to be
a source of indulgence so they weren’t at all disguised. But today and in the future, eating healthy
means navigating a minefield of dangerous ingredients that we aren’t aware of
yet, don’t have the time to learn about, or find it hard to ascertain what
contains them. I have no doubt that
there is a direct correlation between unhealthy food ingredients and how
pervasive they are in our food system. This
is the all-time market failure. Wheat,
soy and corn are the three most pervasive ingredients in our food system and
all three have been heavily criticized because they have been so brutally
hybridized and processed that they are no longer recognizable biochemically. The sad thing is
that we can predict the same outcome for those niche grains such as quinoa and
millet which, at the moment are highly sought for as healthy substitutes. But as demand grows and the industrialized
food system gets their hands on them, we’ll see a similar manipulation of said
grains thereby perverting the biochemical properties that took millions of
years to specifically suit our genetic makeup.
Producers will then put these ingredients in everything from pancakes to
muffins and nutritionists will support their consumption only to our chagrin
later when we read “Millet Belly” or “Quinoa Belly” that tells us that their
hybridization is what is explaining a new trend in human illness (see this very story on quinoa that just came out).
So who stole my bread?
The industrialized food system did and we, as consumers, are complicit because
the only way that we can sustain ourselves in this finite planet with such high
population levels is to sacrifice our health to get what we need. That is why for me, the scientific evidence
of the dangers of wheat are less important than the fact that we are starting
to hit a wall in terms of what we can efficiently and safely produce to feed 7-9 billion people. In other words, I’m not
at all surprised that one of the most pervasive foods (wheat) in our food
system is responsible for major disease.
You can’t manipulate nature to such an extent to radically increase
production levels to unprecedented proportions and not pay a price down the
road.
This means that readers who want
to remove themselves from the line of sight of the looming freight train will
have to detach from the industrialized food system by creatively finding alternatives to what you're seeing in the aisles of the grocery store and in healthy recipe books. For instance, how do you make homemade vegetarian burgers if you can't use bread crumbs or even panko crumbs? How do you make homemade pancakes without wheat flour? How do you make a sandwich if there is no bread? In his book Davis tends to think that it's entirely possible and he provides some good advice on how to do so. But there is no doubt that a serious lifestyle change needs to be made about where people are spending their disposable income. If you want inexpensive food so that you can
purchase more televisions, ipads, vehicles and the dream home, then, in my view, you will be
a passive victim to a system that is inherently in conflict with the long-term health
needs of our society.