How Did we Get so Fat? The Obesity Epidemic in America
In the modern age we have more access to resources than ever before. This easy access has been what has allowed us to advance as far as we have. Some resources, like food, we now have an over abundance of. As a matter of fact we have such an over abundance of foods that the government pays farmers not to grow certain foods so that the supply doesn't exceed the demand and prices can be controlled. Because of this overabundance we have gotten, to be blunt, fat as a nation. The Center for Disease Control reported that 68.8% are overweight and that 38% of Americans are obese. As a result of this our health care cost associated with these statistics have reached a whopping $147 Billion annually.
How Did This Happen?
We don't have to look to far back to see how our calorie consumption has changed. Even if we only go as far back as the 80's we see a 20% increase in the number of calories your average person consumed in a day. If we look at basic physiology we will learn that it is insulin that actually triggers the body to store fat, and that the amount of sugar in the blood stream is the biggest regulator of insulin release. Proteins stimulate a mild insulin release, while fats don't stimulate insulin at all. Knowing that sugar is the biggest influences on insulin release its hard to say a calorie is just a calorie when it comes to mechanisms in the body and weight loss.Sugar Consumption
It's estimated that the average American of today consumes more sugar in a two week period than an American from the early 1800's consumed in an entire year. Sugar used to be somewhat hard to find and that is why the body experiences it as such a delight, but now there is such an abundance our physiology can't adapt/keep up with our consumption. Just as its not as simple as a calorie is just a calorie, when we look closer at sugars them self there is also a difference in the way our physiology responds to them.
Fructose vs. Glucose
As stated earlier our bodies don't process all sugars the same. When it comes to simple processed sugars, for the most part, they are disaccharides meaning there are two sugar molecules making up the compound. These sugars are comprised primarily of fructose and glucose. Unlike glucose, fructose is processed by the liver similarly to alcohol before it hits the blood stream. This results in an immediate increase in lipid synthesis in the liver. Since being approved by the FDA it has come to account for 40% of the sweetener used in the US.Another contributing factor is lack of physical activity. Work takes up a lot of the day and a lot of us have to be there fairly early. We don't want to have to wake up early to get a work out in and by the time we get off work we are ready to go home and relax. Also while we are on the subject of work, most of us work from 9-5. This also happens to be the window that ultraviolet B radiation gets through the atmosphere and we are able to produce vitamin D. Nearly half of Americans are considered deficient in this very important hormone. The last factor that we are going to touch on here is MSG consumption. MSG consumption is associated to increased calorie intake and there is evidence that it interferes with leptin, the hormone responsible for fat metabolism.





