Why
We Get Fat and What to Do About It
is a follow-up to Gary Taubes’ previous book, Good Calories, Bad Calories. While the first book was aimed at
presenting arguments and evidence that might persuade experts to consider
new—and revive old—models of nutrition and health, his more recent book is aimed at
laypeople who want a more basic understanding of how our bodies manage weight and fat
and how we can manage it.
The primary driving
force in the way our body uses or stores fat is insulin. Chemicals in our body,
primarily insulin, tell our cells when to burn glucose instead of ketones (a
product of fat that can fuel our cells) and when to store fat. Though there are
various factors that contribute to insulin production, the big driver—one we
can control—is carbohydrates. Insulin increases when we eat carbs, instructing
our cells to consume sugar (to get our blood sugar levels down) and store fat
in the meantime. If we eat too many carbs, we stay in the sugar-burning,
fat-storing mode and spend very little time burning fat.
The antidote to getting
fat, then, is to eat less carbs. There is a genetic component to this, so how
much a person needs to cut carbs to manage weight is individual to them. The
upside is that almost anyone can get leaner but cutting carbs; the down side is
that your genes govern how lean you can get, which may not be as lean as you
want to be.
A more positive upside
is that people can lay aside the guilt that come with the association of overweight with overeating and laziness.
Appetite and energy levels are driven by the same processes that govern fat
storage. In addition to losing weight, a low-carb diet can help one have more
energy and less hunger.
Though Why We Get Fat is less
reference-intensive that its predecessor, it is still full of references to
research. It also covers the history of how the counterproductive calories
in-calories-out model came to be dominant in American nutrition and health circles. The
emphasis on the book is why.
Though Taubes focuses on
why, he does not neglect what, thought the what (cut carbs) is fairly
straightforward. He recommends a low-carb diet and includes a model in an appendix, though he also
recommends an even simpler list of does and don’ts that goes back to the 1940s, before the calorie counting model
took over the medical view of weight management.
I’ve been cutting back on
carbs for a few days. I’ve seen my weight drop, but it is too early to say if
it will continue. However, Taubes’ book has given me reason to believe it will
work if I stick with it.
If you’re interested in
this book, you may also be interested in
Change Your
Brain Change Your Body by Daniel G. Amen
8 Minutes in the Morning for Extra-Easy Weight Loss by Jorge Cruise
8 Minutes in the Morning for Extra-Easy Weight Loss by Jorge Cruise
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