If this lack of access to a grocery store wasn't bad enough, the USDA argues, corner stores and fast food restaurants like McDonald's, Taco Bell, and Pizza Hut encourage poorer individuals to eat less healthy foods just to save a buck. These food deserts, and the fast food joints that infest them, are exacerbating our current epidemic of obesity by preventing poor people from eating healthy foods, or so we are told.
The fact is that if you don't have a lot of money, you will tend to buy the cheapest food items. Generally, overly-processed foods are cheaper than healthy foods no matter where you get your food. (2)
As for the fast food restaurants, while these establishments are generally selling excessively processed, nutrient-devoid, taste enhanced, near-meat foods, the health problems associated with food deserts (e.g., obesity, diabetes, heart disease) go well beyond cheap chicken nuggets, Big Macs, bean burritos, pepperoni pizza, and giant cups of soda. If the USDA is going to poo-poo all over fast food restaurants, then they have to also be critical of the supposed oasis of healthy eating: The grocery store. While the outside of a grocery store is filled with the stuff generally recognized as healthy (produce, meat, dairy), the center aisles are completely full of junk (see the illustration below by Chris Masterjohn). These highly-processed convenience foods represent a food dessert too.
All convenience foods are a symptom of the modern Western diet and lifestyle, where preference is given to cost, speed, and taste instead of more slowly prepared, healthful, nutrient-dense foods.
There is a much simpler answer to our current health problems: Obesity (like heart disease, stroke, and diabetes) started to become prevalent as we transitioned from eating nutritious, traditionally-prepared foods to more industrially-processed and shelf-able foods. (3) Specifically, the problem is our excessive intake of:
- Grains and legumes, which contain anti-nutrients and toxins that humans haven't evolved to deal with. Lately, wheat has been linked to all kinds of diseases (e.g., heart disease, diabetes, obesity, rickets), (3,4) and soy seems to have evolved an arsenal of toxins and anti-nutrients designed to bring misery to any creature that dares to eat it. (5)
- Refined sugar. All refined sweeteners supply energy-dense, easily-digestible calories. In excess, it can cause non-alcoholic fatty liver disease (NAFLD), (6) overweight and obesity, and a condition known as hyperinsulinemia (excess insulin in the blood), which has been linked to atherosclerosis, diabetes, enhanced tissue growth, insulin resistance, heart disease, and osteoporosis. (3)
- Omega-6-rich polyunsaturated fatty acids (PUFA). Omega-6 is an essential polyunsaturated fatty acid that is pro-inflammatory, causing chronic body-wide inflammation when habitually eaten in excess. Polyunsaturated fatty acids are highly unstable, going rancid with even the slightest amount of heat, pressure, or chemical processing. Rancid fats can cause chronic inflammation in the body; chronic inflammation has been linked to several diseases (e.g., atherosclerosis, allergies, degraded immune response, cancer). (7)
- Engineered foods that come in a bag, box, or can. Foods with a long shelf-life are usually heavily processed, chemically preserved, taste enhanced, and/or missing nutrients that were present in its raw ingredients. This creates a situation where a person is malnourished with a full stomach.
References
1. Food Desert Locator. USDA.gov. [Online] [Cited: November 22, 2011.] http://www.ers.usda.gov/data/fooddesert/about.html#Defined.
2. 1. “Food deserts”—evidence and assumption in health policy making. Cummins, Steven and Macintyre, Sally. 10, s.l. : BMJ, 2002, Vol. 325.
3. Lindeberg, Staffan. Food and Western Disease. UK : John Wiley and Sons, 2010.
4. Masterjohn, Chris. Wheat Belly: The Toll of Hubris on Human Health. Cholesterol-and-Health.com. [Online] October 12, 2011. [Cited: November 26, 2011.] http://blog.cholesterol-and-health.com/2011/10/wheat-belly-toll-of-hubris-on-human.html.
5. Daniel, Kaayla T. The Whole Soy Story. Washington, D.C. : NewTrends Publishing, Inc., 2005.
6. Masterjohn, Chris. Nonalcoholic Fatty Liver Disease. WestonAPrice.org. [Online] April 1, 2011. [Cited: September 18, 2011.] http://www.westonaprice.org/health-issues/nonalcoholic-fatty-liver-disease.2. 1. “Food deserts”—evidence and assumption in health policy making. Cummins, Steven and Macintyre, Sally. 10, s.l. : BMJ, 2002, Vol. 325.
3. Lindeberg, Staffan. Food and Western Disease. UK : John Wiley and Sons, 2010.
4. Masterjohn, Chris. Wheat Belly: The Toll of Hubris on Human Health. Cholesterol-and-Health.com. [Online] October 12, 2011. [Cited: November 26, 2011.] http://blog.cholesterol-and-health.com/2011/10/wheat-belly-toll-of-hubris-on-human.html.
5. Daniel, Kaayla T. The Whole Soy Story. Washington, D.C. : NewTrends Publishing, Inc., 2005.
7. Jaminet, Paul. Perfect Health Diet. s.l. : YinYang Press, 2010.
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