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Are processed foods bad for you? 4 things to know about how they affect your health

An example of one of the many sausages served during Wurst Fest at NuLu Bock Fest in Louisville.

The term "processed" is vague and ambiguous when it comes to food, often meaning foods that are packaged in some way, such as boxes, bags, or cans — aka not in their natural state. Most likely, they have been changed, with things added or stripped out for a variety of reasons.

The Industrial Revolution displaced many people from rural farm areas where they raised or grew their own "fresh" foods and moved them to cities where food had to be imported. This created all sorts of challenges associated with transporting foods, especially the need to preserve them, but we figured it out.

Unfortunately, a shift occurred, and the emphasis moved from transporting foods to "transforming" foods. When producers realized that transforming foods in a variety of ways made them more appealing to the eye and tastebuds, sales increased, and we were off and running toward the destruction of health in this country that is costing us dearly.

Here's what to know about the dangers of processed food.

Is white flour bad for you?

White flour is the "poster child" for food processing, capturing most of what went wrong when we decided to transform foods from their natural state. Whole grains kernels, in their natural state, have three layers, each with health-promoting nutrients, including fiber, vitamins and minerals, antioxidants and phytochemicals. White flour, in contrast, is stripped down and consists primarily of starch (long strings of glucose molecules). Then, to pacify the public and convince us that all is well, producers add back in a few vitamins and minerals and the product is deemed "enriched."

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The Glycemic Index (GI) indicates the impact of a food to increase blood sugar (glucose). In turn, the greater the rise in blood sugar, the greater the insulin response, and therefore the lower the GI score the better. Because white flour is starchy and there is no fiber, it digests quickly with a GI score of 71 which, amazingly, is higher than granulated (table) sugar with a score of 63.

What does white flour do to your body?

No doubt about it, white flour is among the worst of "bad carbs." With the epidemic of Type 2 diabetes in this country and approximately 35% of American adults waiting in the wings with "pre-diabetes" (also known as Metabolic Syndrome), the last thing we need is overindulging on white flour products. What's more, foods made from white flour with a high GI score increase LDL cholesterol (that's the bad kind!) and blood pressure, key risk factors for heart disease, another of our health epidemics.

And, of course, white flour products contribute to weight gain and ultimately to obesity, yet another epidemic.

Ironically, it's common that folks who need to lose weight to continue to consume white flour foods. One reason is many nutritional experts believe we are addicted to white flour. Think about it. When you come in at the end of the day and are hungry, what do you crave? Most of us will reach for a white flour product, cookies, donuts, bagels, bread, pizza, the list goes on. And what happens after we gulp down a cookie or two? Because the ingredients are refined and so highly concentrated, the volume is reduced while the calories are elevated. In turn, you feel less satisfied after consuming, which brings you back for more.

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