Ultra Processed Food

What it is, why it’s harmful and how to avoid it

Ultra processed food is everywhere — in your supermarket, your pantry, and probably your last meal. But most people have no idea what it actually means, or why scientists and nutritionists are increasingly alarmed by it. In this guide, you’ll learn exactly what ultra processed food is, see a comprehensive ultra processed food list, understand the real health risks, and discover how a simple ingredients checker app can help you make smarter choices instantly.

Whether you’re trying to eat healthier, manage your weight, or simply understand what goes into the products you buy — this article is your complete reference.

What is ultra processed food? (the NOVA classification explained)

The term ultra processed food comes from the NOVA classification system, developed by researchers at the University of São Paulo. NOVA divides all foods into four groups based on the extent and purpose of food processing:

  1. Unprocessed or minimally processed foods — fruits, vegetables, meat, eggs
  2. Processed culinary ingredients — oils, butter, salt, sugar
  3. Processed foods — cheese, canned fish, cured meats
  4. Ultra processed foods (Group 4) — industrial formulations with 5+ ingredients, including additives not found in home cooking

Ultra processed foods are industrial formulations made mostly from substances extracted from foods — fats, starches, added sugars, hydrogenated oils — combined with additives like artificial colors, flavors, emulsifiers, and preservatives. The key red flag: these are ingredients you would never find in a regular home kitchen.

The ultra processed food list

Here is a comprehensive ultra processed food list you should be aware of when grocery shopping:

Snacks and sweets

  • Packaged chips, crisps, and crackers
  • Chocolate bars and candy
  • Packaged cookies and biscuits
  • Ice cream and frozen desserts (with additives)

Drinks

  • Carbonated soft drinks (Coca-Cola, Pepsi, etc.)
  • Fruit-flavored drinks (not real juice)
  • Energy drinks
  • Flavored milks with additives

Ready-to-eat meals and processed meats

  • Instant noodles and soups
  • Frozen pizzas and ready meals
  • Hot dogs, sausages, chicken nuggets
  • Deli meats with preservatives (nitrates, phosphates)

Breakfast and dairy

  • Sweetened breakfast cereals
  • Flavored yogurts with added sugars and thickeners
  • Margarine and spreads

Health risks of ultra processed food: what the science says

The research on ultra processed food is increasingly clear and alarming. Here are the key findings from major peer-reviewed studies:

1. Increased risk of chronic disease
A large study published in The BMJ (2019) found that a 10% increase in ultra processed food consumption was associated with a 12% higher risk of cardiovascular disease. Other studies have linked high consumption to type 2 diabetes, obesity, and certain cancers.

2. Overeating and weight gain
A landmark NIH clinical trial (2019) found that participants on an ultra processed diet ate significantly more calories per day and gained weight, while those on an unprocessed diet spontaneously ate less and lost weight — even though both groups had equal access to calories, sugar, fat, and fiber.

3. Harmful food additives
Ultra processed foods are loaded with additives — emulsifiers, artificial sweeteners, colorants, and flavor enhancers — increasingly linked to gut microbiome disruption, inflammation, and metabolic disorders. Many of these are E numbers you can check using a food additives checker.

How to identify ultra processed food when shopping

Reading food labels can be overwhelming, but here are practical rules of thumb to identify ultra processed food in the supermarket:

  • More than 5 ingredients on the label — a strong signal of ultra processing
  • Ingredients you don’t recognize or can’t pronounce — like carrageenan, xanthan gum, TBHQ, or sodium stearoyl lactylate
  • E numbers — especially E100–E199 (colors), E200–E299 (preservatives), E400–E499 (emulsifiers/stabilizers)
  • Claims like “fortified with vitamins” or “low fat” — often a sign that natural nutrients were stripped during processing and added back artificially

How to avoid ultra processed food: 5 practical tips

Knowing how to avoid ultra processed food is the key to a healthier lifestyle. These five strategies are realistic and sustainable:

  1. Cook from scratch when possible — even simple meals made with whole ingredients are significantly better than packaged alternatives.
  2. Shop the perimeter of the supermarket — fresh produce, meats, and dairy are typically around the edges; the center aisles are ultra processed territory.
  3. Check ingredients, not just nutrition facts — a product can be “low calorie” and still be ultra processed.
  4. Replace packaged snacks with whole food alternatives — nuts, fruit, boiled eggs, or plain yogurt instead of chips or candy bars.
  5. Use an ingredients checker app to scan products before you buy them — this is by far the fastest and most reliable method.

The easiest way to check: NutriSmart ingredients checker app

Manually reading every label in the supermarket is time-consuming and confusing. That’s exactly why we built NutriSmart — a free ingredients checker app that instantly tells you what’s really in your food.

Here’s what NutriSmart does for you:

  • Scan any food barcode instantly with your phone camera
  • Get a full breakdown of all ingredients and additives (E numbers)
  • See a clear NOVA classification — know if it’s ultra processed in seconds
  • Discover healthier alternatives for products that score poorly
  • Works offline — perfect for grocery shopping without signal

Stop guessing and start knowing. Download NutriSmart free — available on iOS and Android.

 

Frequently asked questions about ultra processed food

Is bread ultra processed food?

It depends on the bread. Traditional bread made with flour, water, yeast, and salt is processed (Group 3), not ultra processed. However, most industrial sliced breads contain emulsifiers, dough conditioners, and added sugars — making them ultra processed (Group 4). Always check the ingredients list.

Is yogurt ultra processed food?

Plain natural yogurt is not ultra processed. Flavored yogurts — especially those with fruit syrups, thickeners like modified starch, and added sugars — typically are. Use an ingredients checker app to verify each brand.

Can ultra processed food cause cancer?

Several large observational studies have found associations between high ultra processed food consumption and an increased risk of cancer, particularly colorectal and breast cancer. While these studies show correlation rather than direct causation, the findings are consistent across multiple countries and populations.

How much ultra processed food is too much?

There is no universally agreed safe threshold. However, many nutrition researchers suggest that ultra processed food should represent less than 20% of total caloric intake. In most Western countries, the average is currently between 50–60% — far higher than what is considered healthy.

Conclusion

Ultra processed food is one of the most significant public health challenges of our time. It’s engineered to be convenient, cheap, and hyper-palatable — but at a serious cost to your long-term health. The good news is that awareness is the first step, and with the right tools, avoiding ultra processed food is more achievable than ever.

Start by learning to read labels, use the ultra processed food list in this article as your guide, and let NutriSmart‘s ingredients checker app do the heavy lifting when you’re at the supermarket.

Your health starts with what’s on the label. Download NutriSmart today and never wonder about your food again.