Why We Get Fat: Central Premises

January 20, 2011

Insulin MoleculeIn the first of several posts on Gary Taubes’ new book Why We Get Fat: And What to Do About It, I focus on the very brief introduction to the book where he sets out his central premises that explain the central issue raised in the title: why *do* we get fat?

They are stated very simply. So simply they may be hard to grasp. Here they go:

  1. When Insulin levels are elevated, we accumulate fat in our fat tissue; when these levels fall, we liberate fat from the fat tissue and burn it for fuel
  2. Our insulin levels are effectively determined by the carbohydrates we eat – not entirely, but for all intents and purposes.

Simple, right?

What’s missing: talk of calories expended or calories consumed. the need for fat-burning exercise, staying just a little bit hungry all the time. All these assumptions will be addressed systematically, but the two paragraphs above essentially explain the ‘Why" to the whole getting fat thing.

There is one more section in the introduction that bears pulling out here:

The science tells us that obesity is ultimately the result of a hormonal imbalance, not a caloric one – specifically, the stimulation of insulin secretion caused by eating easily-digestible, carbohydrate-rich foods

Just like the body ‘grows’ early in life in response to hormonal cues (i.e. the presence of growth hormone), fat tissue ‘grows’ later in life in response to hormonal changes (principally, insulin).

Next Post: Section 1: dismantling the going assumptions

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4 Responses to “Why We Get Fat: Central Premises”


  1. Very interesting article about diet and nutrition.

    Like


  2. I really like how you summed that up, Keith. For me the takeaway is that narrow-minded folks, some of which I know, need to stop with their assumptions that fat people are fat due to their poor eating habits. As you stated and Gary backs it up, its just not that simple. Education is the key to righting this wrong. Keep up the good work.

    Like


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