Monday, March 08, 2010
I was going thru the Cornell Alumni magazine last night and there was an interesting article about weight loss.
Here is what hit me:
"In people who who are susceptible, a "Feed forward" mechanism develops. that is characterized by a resistance to signaling pathways that come to the fat cells to the brain. Eating junk food sparks a vicious cycle: "Not only does it taste good. Not only does it have high calories. But when you eat it, it interrupts the signal between the fat cells and the brain."
In people of normal weight, leptin tells the brain it's time to stop eating, that the internal fuel tank is full. But an excess of fat cells means an overload of leptin, which disrupts the signaling process and foils our sense of satiety.
To break the feed forward loop, emphasize lean protein, high-fiber whole grains, fresh fruits, and non-starchy vegetables over sugars, fatty meats, and simple carbs.
The lesson I learned: You can't eat one, so have none.