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Would you describe your diet as “healthy”?
If you answered “yes”, you may have overestimated the healthfulness of the food you eat. Research conducted by the U.S. Department of Agriculture showed that 85% of 9,700 study participants overstated the quality of their diets. On the other hand, respondents who rated their diets as “poor” were 97% accurate in assessing their diet’s quality.
If you are an average American adult, approximately 60% of the food you consume is ultra-processed. For children, this figure is closer to 67%. This is unsurprising, as these foods comprise 73% of the U.S. food supply.
What are “ultra-processed” foods? A 2019 article from PubMed defines them as "formulations of ingredients, mostly for exclusive industrial use, that result from a series of industrial processes."
Despite this rather unappetizing description, these products are often tasty, inexpensive, and widely available. Though they are cheap to buy, they incur $8 - $10 trillion in global “hidden costs” in the form of medical bills and environmental degradation.
How do you know which foods are ultra-processed? Here is a quick food guide based on the level of processing.
Categorizing Food According to NOVA
The NOVA Food Classification System assigns foods and culinary additives to categories according to how much they are processed. This link will take you to a very nuanced explanation of the various groupings, complete with many examples. For quick reference, I’ve summarized the sections below.
Group 1: Unprocessed or Minimally Processed Foods
Whole foods are unprocessed and are unchanged from their original form.
Example: Fresh produce (bananas, apples, carrots, tomatoes, zucchini).
Minimally processed foods are only slightly changed from their original form. They may be washed, trimmed, frozen, or pasteurized and are usually packaged. They do not include additives. The ingredient list on the label contains just 1 ingredient.
Examples: Frozen vegetables, dairy products (milk, eggs, plain yogurt), dried legumes, canned no-salt-added beans, unsweetened apple sauce, and whole, unseasoned poultry.
Group 2: Processed Culinary Ingredients
This refers to the oils, fats, sugar, and salt used to season food.
Group 3: Processed Foods
These foods are created by combining Group 1 with Group 2.
Examples: Canned fruits, vegetables, fish, and meats; fermented alcoholic beverages.
Group 4: Ultra-Processed Foods
As noted earlier, these foods are highly processed industrial formulations. They often do not resemble foods in their natural state.
Examples: Soda, frozen pizza, ice cream, instant soups and sauces, infant formula.
Ultra-Processed Foods Dominate the Supermarket Landscape
Ultra-processed foods are ubiquitous, making up the majority of grocery store offerings. Most of the items advertised in supermarket sale circulars are in this category. In short, these products are what we see when we go food shopping.
People like these foods because they are cheap, costing a mere $.55 per kilocalorie compared to the $1.45 for unprocessed or minimally processed foods. Indeed, a food survey administered earlier this year revealed that 60% of respondents cited the cost of healthy food as the biggest barrier to improving their diets.
Consumers enjoy the convenience and taste of these products. Ultra-processed foods are high in fat, salt, and sugar—additives that increase palatability and are highly addictive.
How Corporations Promote Their Interests and Shape Food Policy
Since its founding in 1978 by former Coca-Cola executive Alex Malaspina, the non-profit International Life Sciences Institute (ILSI) has been championing the products of Nestle, Monsanto, Campbell Soup, and General Mills while pledging to protect health and safeguard the environment through science.
The consumer interest group U.S. Right to Know has submitted multiple Freedom of Information requests regarding ILSI and has obtained several thousand pages of information. A scientific review of these documents, published on PubMed Central, suggests that ILSI advocates for industry positions and influences outcomes while publicly claiming to be neutral and guided by scientific principles.
ILSI's efforts to influence food policy include convincing the Chinese government that lack of exercise rather than eating habits were the major contributor to obesity; campaigning against a soda tax implemented in Mexico; and presenting processed foods as “allies” against Covid-19 in Brazil due to their “greater safety”.
Health and Environmental Costs Associated with Ultra-Processed Foods
Numerous research papers highlight the harmful health effects of ultra-processed foods. A recent review of the scientific literature found a correlation between these foods and an increased risk for 32 health conditions. Other studies have also reported a greater risk of cardiovascular disease, cognitive impairment, stroke, diabetes, and overweight / obesity along with a 62% higher risk of dying from all causes.
The healthcare costs associated with poor diet are astounding—a 2019 estimate placed the figure at $50 billion in the U.S. alone. The Food and Drug Administration inadequately regulates the substances added to our food. Experts are urging stricter regulations.
Our ultra-processed diet impacts more than just our health. These foods use more resources than less processed products, accounting for the greatest share of food-related energy use, biodiversity loss, packaging waste, and greenhouse gas emissions.
Consumers Can Help Reverse the Damage
As consumers, we can do our research and change our buying habits to reduce the damaging effects of these products. Reducing food waste is an easy change to incorporate into our lives that will help reduce our carbon footprint. Cutting back on meat consumption might be a second step to tread more lightly on the planet while improving our personal health.
The TrueFood Dashboard is a helpful tool for identifying sustainable food choices for our health and the planet. It rates food items based on their level of processing, enabling consumers to make healthier choices without sacrificing their enjoyment of foods like bacon–all while improving their health and reducing environmental degradation.
Guiding Stars is a phone app and system of labels on supermarket shelves that guides shoppers toward making healthier choices at the store. It is available locally at Stop & Shop and Hannaford.
Making these simple dietary changes today will enhance our health and lessen our carbon footprint—a beneficial outcome by any measure.