Table of ContentsView AllTable of ContentsCancerPopcorn LungOther Health RisksHealthy Popcorn

Table of ContentsView All

View All

Table of Contents

Cancer

Popcorn Lung

Other Health Risks

Healthy Popcorn

Microwave popcorn earned a reputation as being “bad” for your health because of chemicals in the flavoring and packaging that are linked to cancer and a condition known asbronchiolitis obliterans(a.k.a. “popcorn lung”). Fortunately, these chemicals—known as perfluorinated compounds (PFCs) and diacetyl—are no longer used in food products and packaging in the United States.

Even so, there remain concerns that certain ingredients in microwave popcorn can turn an otherwise healthy snack into an unhealthy one. This includes high amounts ofsaturated fatand salt (sodium) which can increase a person’s risk of high blood pressure, heart disease, and stroke.

This article discusses the potential health risks of microwave popcorn as well as safe, healthy ways to eat this fiber-rich snack.

Verywell / Jessica Olah

Bronchiolitis Obliterans (Popcorn Lung) Symptoms

Does Microwave Popcorn Cause Cancer?

Microwave popcorn was once strongly linked to a risk of cancer due to chemical additives called perfluorinated compounds (PFCs) used in popcorn bags. PFCs were widely used because they resist grease and prevent oil seepage in microwaveable containers.

PFCs were introduced as food packaging during the 1960s and used since the 1940s in a wide range of products (including water-proof textiles, nonstick cookware, firefighting foam, and ski wax).

The problem with PFCs is they break down intoperfluorooctanoic acid(PFOA), a chemical linked to cancer and other health concerns. The risk is thought to increase over time as PFCs accumulate in body tissues.

PFOAs may also cause liver damage, impaired fertility, developmental problems, and an increased risk of asthma and thyroid disease.

For these and other reasons, the U.S. Food and Drug Administration (FDA) banned PFCs in food packaging in January 2016.

What Is Popcorn Lung?

Bronchiolitis obliterans, also known as popcorn lung, is a rare condition that causes the scarring of the air sacs of the lungs and the narrowing of air passages.

It causes symptoms similar tochronic obstructive pulmonary disease (COPD)—such as chronic coughing,wheezing, and shortness of breath. It can also lead torespiratory failure(in which your lungs are less able to deliver oxygen or remove carbon dioxide from your blood).

Bronchiolitis obliterans earned the nickname “popcorn lung” after an outbreak of the disease was diagnosed in a group of workers in a popcorn production plant in 2000. The cause was traced to inhalation of diacetyl, a chemical that gave microwave popcorn its buttery flavor.

In response to the findings, four major popcorn manufacturers (Orville Redenbacher, Act II, Pop Secret, and Jolly Time) began removing diacetyl from their products in 2007.Today, it is no longer used in most microwave popcorn brands.

Even so, double-check the product label to ensure that diacetyl is not an ingredient.

Does Microwave Popcorn Have Other Health Risks?

Although PFCs and diacetyl are no longer used in microwave popcorn, there are other health risks associated with the product.

Saturated Fat

Popcorn is a low-calorie, high-fiber snack that you can eat in moderation every day. Without toppings, 3 cups of air-popped popcorn contains only 95 calories and 0.2 grams of sugar. It also delivers 3 grams of protein, 3 grams of fiber, and 19 grams of carbohydrates.

Three cups of air-popped popcorn also contain only 1 gram of fat, the majority of which are “healthy"monounsaturated and polyunsaturatedfats. Only 0.015 grams are “unhealthy” saturated fat.

The problem with most regular microwave popcorn products is that the saturated fat content skyrockets to deliver that buttery flavor many people crave.

By way of example, one serving of Orville Reddenbacher’s Butter Microwave Popcorn contains 6 grams of saturated fat—or 30% of your recommended daily intake.Palm oilis the culprit with this and other popcorn brands.

Saturated fat is unhealthy because it raises your “bad"LDL cholesterollevel. High LDL independently increases your risk of heart disease and stroke.

Sodium

Another ingredient in microwave popcorn to watch for is sodium. The American Heart Association (AHA) recommends no more than 2,300 milligrams (mg)—or roughly one teaspoon—of sodium per day from all sources. Most adults should limit themselves to less than 1,500 mg per day, especially those withhypertension (high blood pressure).

The problem with microwave popcorn is that the buttery flavorants are almost invariably high in sodium.

Take, for example, Jolly Time Blast O' Butter popcorn which contains 340 mg of sodium per serving. If you indulge in a large tub of movie popcorn, you could be consuming as many as 1,090 calories and 2,650 mg of sodium in one sitting.

How to Eat Popcorn Safely

Eating microwave popcorn is generally safe if eaten in moderation and can even be a part of a healthy weight-loss plan if a “light” popcorn brand is chosen.

While PFC-free bags and the discontinuation of diacetyl flavorants have reduced many of the risks associated with microwave popcorn, it is still in your interest to read product labels and watch how much fat and sodium you are consuming.

There areother ways to make popcorn healthierto eat.

A Word From VerywellAnother strategy that can reduce any adverse health effects of microwavable popcorn is incorporating a silicone popcorn popper instead of using the standard paper bags. These devices are specifically designed for microwave use and allow people to pop their own kernels without the need for pre-packaged bags. It eliminates exposure to perfluorinated compounds (PFCs), allows control over ingredients, and is reusable, making it an environmentally friendly option.—KASHIF J. PIRACHA, MD, MEDICAL EXPERT BOARD

A Word From Verywell

Another strategy that can reduce any adverse health effects of microwavable popcorn is incorporating a silicone popcorn popper instead of using the standard paper bags. These devices are specifically designed for microwave use and allow people to pop their own kernels without the need for pre-packaged bags. It eliminates exposure to perfluorinated compounds (PFCs), allows control over ingredients, and is reusable, making it an environmentally friendly option.—KASHIF J. PIRACHA, MD, MEDICAL EXPERT BOARD

Another strategy that can reduce any adverse health effects of microwavable popcorn is incorporating a silicone popcorn popper instead of using the standard paper bags. These devices are specifically designed for microwave use and allow people to pop their own kernels without the need for pre-packaged bags. It eliminates exposure to perfluorinated compounds (PFCs), allows control over ingredients, and is reusable, making it an environmentally friendly option.

—KASHIF J. PIRACHA, MD, MEDICAL EXPERT BOARD

Kashif J. Piracha, MD

Summary

Even so, microwave popcorn can be extremely high in saturated fat and sodium, both of which increase the risk of heart attack and stroke. To reduce your risk, either choose “light” microwave popcorn or use an air popper. You should also go light on the salt and butter, or skip them altogether.

15 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

American Cancer Society.Perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS), and related chemicals.

National Toxicology Program, U.S. Department of Health and Human Services.Immunotoxicity associated with exposure to perfluorooctanoic acid (PFOA) or perfluorooctane sulfonate (PFOS).

Fenton SE, Ducatman A, Boobis A, et al.Per- and polyfluoroalkyl substance toxicity and human health review: current state of knowledge and strategies for informing future research.Environ Toxicol Chem.2021 Mar;40(3):606–630. doi:10.1002/etc.4890

The American Lung Association.Learn about bronchiolitis obliterans.

Centers for Disease Control and Prevention.About flavoring-related lung disease.

New York Times.Microwave popcorn to omit a risky chemical.

U.S. Food and Drug Administration.Listing of specific substances affirmed as GRAS: Sec. 184.1278 diacetyl.

U.S. Department of Agriculture FoodData Central.Air-popped popcorn.

University of Rochester Medical Center.Nutrition facts; snacks, popcorn, air-popped, 1 cup.

Sun Y, Neelakantan N, Wu Y, Lote-Oke R, Pan A, van Dam RM.Palm oil consumption increases LDL cholesterol compared with vegetable oils low in saturated fat in a meta-analysis of clinical trials.J Nutr.2015 Jul;145(7):1549-58. doi:10.3945/jn.115.210575

MedlinePlus.Facts about saturated fats.

American Heart Association.Why should I limit sodium?

American Heart Association.Popcorn as a snack: Healthy hit or dietary horror show?

American Heart Association.Health threats from high blood pressure.

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