Preservatives in Ultraprocessed Food Linked to Rising Cancer and Diabetes Rates

Story at-a-glance

• Before refrigeration, humans preserved food through drying, fermenting, curing, and pickling. These methods helped extend food availability without synthetic chemicals
• Industrialization drove the use of chemical preservatives like nitrites, sulfites, and sodium benzoate, enabling mass distribution while dramatically increasing synthetic additives in the modern food supply
• U.S. food regulations allow hundreds of additives that are banned in Europe, with loopholes that permit manufacturers to omit some ingredients from labels, limiting consumer awareness and informed choice
• Studies link higher preservative intake to increased cancer and Type 2 diabetes rates, showing dose-dependent risk independent of calories, weight, or overall diet quality
• Biological mechanisms include DNA damage, inflammation, microbiome disruption, hormonal interference, and insulin resistance, reframing preservatives as cumulative risk factors rather than ingredients that simply extend shelf life

Long ago, before refrigeration was invented, early humans preserved their food in different ways. One of the most common methods is drying meat, fruit, and vegetables under the sun. Pickling, curing, and fermenting were also used, depending on a particular culture's practices. All the same, the goal was to prevent their food supply from spoiling so that they didn't have to consume them immediately. 

                                               Analysis by Dr. Joseph Mercola