What is the difference between processed and ultra-processed food?

Processed foods (NOVA Group 3) are whole foods preserved or modified with simple culinary additions — salt, sugar, oil, vinegar, fermentation. Examples include canned beans, brined olives, fresh bread, and aged cheese. Ultra-processed foods (NOVA Group 4) are industrial formulations made largely from extracted substances and additives like emulsifiers, modified starches, and natural flavors. Examples include instant noodles, soda, packaged cookies, and frozen dinners.

Are all canned foods processed?

Yes, canning is a form of processing — but most plain canned vegetables, beans, fish, and tomatoes are NOVA Group 3, not Group 4. The ingredient list is short: the food, water, sometimes salt. Canning becomes ultra-processing when manufacturers add modified starches, sugars, soybean oil, or flavor systems. Plain canned chickpeas: Group 3. Canned chili with 20 ingredients: Group 4.

Is bread always ultra-processed?

Not at all. A traditional loaf with flour, water, salt, and yeast — the kind sold at most bakeries — is NOVA Group 3 or sometimes Group 1 depending on how strictly you read the rules. Ultra-processed breads are the packaged sliced loaves with dough conditioners, mono- and diglycerides, calcium propionate, soybean oil, and high fructose corn syrup. The ingredient list typically runs 15 lines or more.

What about frozen vegetables and fruits?

Plain frozen produce is one of the cleanest categories in the store. A bag of frozen broccoli, frozen blueberries, or frozen wild salmon usually has one ingredient. Freezing locks in nutrients shortly after harvest, so frozen produce can sometimes be more nutrient-dense than fresh that has traveled long distances. The frozen aisle becomes ultra-processed only with prepared meals, sauced vegetables, and breaded items.

Are condiments processed or ultra-processed?

It depends on the brand. Plain Dijon mustard with mustard seed, vinegar, water, and salt is Group 3. Most ketchups with high fructose corn syrup, modified starch, and natural flavors are Group 4. Mayonnaise made with eggs, oil, lemon juice, and salt is borderline Group 3. Flavored mayos with EDTA, soybean oil, and added sweeteners cross into Group 4. Always scan.

Can a diet include any processed food and still be healthy?

Yes. NOVA Group 3 foods — plain canned beans, fresh bread, aged cheese, fermented foods, brined olives — have been part of human diets for centuries and are generally compatible with healthy eating. The research linking processed foods to disease focuses specifically on diets dominated by NOVA Group 4 ultra-processed foods. A diet built mostly on Groups 1 through 3 with occasional Group 4 items is what most nutrition researchers consider sustainable.

Processed Food List: NOVA Group 3 vs Group 4 by Aisle

Processed and Ultra-Processed Are Not the Same Thing

The phrase processed food gets thrown around as if it covers everything in a package. It does not. The NOVA classification system, used widely in nutrition research, splits packaged foods into two distinct categories. NOVA Group 3 covers processed foods — recognizable whole foods preserved or enhanced with simple culinary additions like salt, sugar, oil, or vinegar. Think canned tomatoes, brined olives, or freshly baked sourdough. NOVA Group 4 covers ultra-processed foods, which are formulations of industrial ingredients you would never find in a home kitchen. Group 3 is generally fine in moderation. Group 4 is the category linked in research to higher risk of obesity, type 2 diabetes, and cardiovascular disease.

The difference shows up clearly when you read labels. A jar of canned chickpeas with chickpeas, water, and salt is Group 3. A flavored hummus dip with chickpeas, soybean oil, modified food starch, natural flavors, and potassium sorbate is Group 4. Same starting ingredient, very different finished product.

Below is a working grocery list organized by aisle, showing which products typically land in each group. Brands and formulations vary, so the only way to know for sure is to scan the actual label in front of you. But this gives you a strong baseline for what to expect when you walk in.

How to Audit a Grocery Cart in Under Five Minutes

Scan Aisle by Aisle

Start in one section — say, breakfast cereals — and scan three to five products in your cart. BerryPure assigns a purity score and flags ultra-processed markers like high fructose corn syrup, BHT, and artificial colors. You will quickly see which boxes drop into Group 4.

Sort Group 3 from Group 4

BerryPure tags products by NOVA classification. Group 3 items like canned beans, plain tomato sauce, and most cheeses are minimally processed. Group 4 items like instant ramen, flavored yogurts, and frozen pizza contain industrial formulations. Knowing which is which helps you decide what to keep and what to swap.

Build a Cleaner Default List

Save the products that score well as your defaults. Next shopping trip, you grab the same brands without re-scanning. Over a few weeks you build a personal grocery list of vetted Group 1, 2, and 3 items, with Group 4 items reserved for occasional use.

Aisle-by-Aisle Group 4 to Group 1 Swaps

Breakfast aisle: Pop-Tarts, Frosted Flakes, instant flavored oatmeal packets

Plain rolled oats with fresh fruit, or whole grain bread with nut butter

Plain oats are a single-ingredient food. Cooking them in three minutes with fruit and a sprinkle of cinnamon delivers the same warm breakfast without the natural flavors, color additives, and added sugars in the boxed versions.

Deli meat aisle: bologna, salami, packaged sliced turkey with phosphates and nitrites

Roast a whole turkey breast or chicken on Sunday and slice it thin for sandwiches

Home-roasted poultry skips the sodium nitrite, sodium phosphate, sodium erythorbate, and dextrose found in processed deli meat. It also keeps a week in the fridge and costs less per ounce.

Snack aisle: Doritos, Cheez-Its, granola bars with 15+ ingredients

Roasted nuts, popcorn popped in olive oil, or apples with nut butter

Roasted nuts and air-popped popcorn are Group 1 or Group 3 foods. They deliver the crunch and salt that snack cravings demand without the soybean oil, MSG, autolyzed yeast extract, and color additives in flavored chips.

Frozen aisle: TV dinners, frozen pizza, ice cream with stabilizers and flavors

Frozen plain vegetables, frozen wild fish fillets, plain Greek yogurt with frozen berries

Frozen foods are not automatically ultra-processed. Plain frozen broccoli, cod, and berries are all Group 1. The freezer aisle becomes Group 4 territory only when products combine refined oils, additives, and flavor systems.

The Processed Food List: A Grocery-Aisle Guide to NOVA Groups 3 and 4