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Why Processed Foods Increase Inflammation

June 4, 2023

Why Processed Foods Increase Inflammation


In recent years, the rise in chronic diseases, such as cardiovascular conditions, diabetes, and certain cancers, has been linked to systemic inflammation in the body. While inflammation is a natural response to injury or infection, chronic inflammation can have detrimental effects on our health. One significant contributor to chronic inflammation is the excessive consumption of processed foods. In this article, we explore the reasons why a diet rich in processed foods can lead to increased inflammation in the body.


Understanding Processed Foods


Processed foods are products that undergo various manufacturing processes, often involving the addition of artificial ingredients, preservatives, and flavor enhancers. These foods typically contain refined carbohydrates, unhealthy fats, high levels of sodium, and are often low in essential nutrients. Common examples include fast food, packaged snacks, sugary beverages, and pre-packaged meals.


Imbalance of Nutrients


One of the primary reasons processed foods contribute to inflammation is their nutrient composition. They are typically low in essential nutrients such as vitamins, minerals, antioxidants, and dietary fiber, while being high in unhealthy fats, added sugars, and sodium. This imbalance can lead to nutritional deficiencies and disrupt the body's natural inflammatory response.


Processed foods often lack anti-inflammatory compounds found in whole, unprocessed foods, such as fruits, vegetables, whole grains, and legumes. These natural foods are rich in antioxidants and phytochemicals, which help combat inflammation. The absence of these beneficial components in processed foods leaves the body more vulnerable to inflammatory processes.


Increased Glycemic Load


Processed foods, especially those with refined carbohydrates, tend to have a high glycemic load. These foods cause a rapid and significant increase in blood glucose levels, leading to an excessive release of insulin. Over time, this repetitive surge in blood sugar and insulin can result in insulin resistance, a condition associated with chronic inflammation.


Insulin resistance disrupts the balance of hormones involved in regulating inflammation, such as adiponectin and leptin. Additionally, high insulin levels promote the production of pro-inflammatory molecules, contributing to systemic inflammation.


Imbalance of Omega-6 and Omega-3 Fatty Acids


Processed foods often contain unhealthy fats, particularly high levels of omega-6 fatty acids found in vegetable oils, such as soybean and corn oil. While omega-6 fatty acids are essential for the body, an imbalance between omega-6 and omega-3 fatty acids can promote inflammation.


The Western diet, which heavily relies on processed foods, typically has an excessive omega-6 to omega-3 ratio. This imbalance can trigger the production of pro-inflammatory substances, leading to chronic inflammation. A healthy diet should include sources of omega-3 fatty acids, such as fatty fish, walnuts, and flaxseeds, to help counterbalance the inflammatory effects of omega-6 fatty acids.


Additives and Chemicals


Processed foods often contain additives, preservatives, artificial sweeteners, and other chemicals to enhance taste, texture, and shelf life. Some of these additives, such as artificial trans fats and high fructose corn syrup, have been associated with increased inflammation and related health problems.


Artificial trans fats, commonly found in fried and baked goods, not only promote inflammation but also contribute to cardiovascular disease. High fructose corn syrup, a prevalent sweetener in processed foods, has been linked to insulin resistance, obesity, and systemic inflammation.




While processed foods offer convenience and palatable flavors, their consumption should be limited due to their potential impact on inflammation and overall health. A diet predominantly based on whole, unprocessed foods provides the necessary nutrients, antioxidants, and anti-inflammatory compounds that help the body fight inflammation and disease.


We've got plenty of resources about the causes and cures for whatever body pains you might have. And they're free! Courses & Books | Superior Physical Therapy (thesuperiortherapy.com)

Check out this article in the Washington Post about fast food and inflammation: This is your body on fast food - The Washington Post.


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