What is Popcorn Lung? Can You Get it From Vaping?

Last updated on May 27th, 2020

What is Popcorn Lung? Can You Get It From Vaping?

Does Vaping Flavored E-liquids Cause Popcorn Lung?

You may be worried about the safety of e-liquids (also called e-juices) if you vape, or are considering vaping. While many e-juice companies list their ingredients, you may wonder if there are hidden chemicals such as Diacetyl – a flavor additive that has been linked to the lung disease known as “popcorn lung”.  

Can vaping certain e-liquids increase your chances of getting this disease? This article will answer that question.

What is Popcorn Lung Disease?

In 2002, a dangerous but rare lung disease, bronchiolitis obliterans came to be known as “popcorn lung” when 8 workers at a popcorn factory contracted the disease. Air samples tested in the room where workers got sick showed a high amount of diacetyl. Diacetyl was used to give the popcorn a buttery flavor.

Later that year, the Centers for Disease Control (CDC) issued a paper about the incident, but that paper was somewhat inconclusive. 

How Did Popcorn Lung Become Linked with Vaping?

In 2015, a single study was conducted by the Harvard School of Public Health. It looked at whether e-cigarette liquid contained diacetyl. Only 51 of over 4000 available flavors were tested. 39 of the 51 e-liquids tested contained some level of the flavor chemical. 

The Harvard study did not look at whether there was a link between e-cigarette use and popcorn lung, yet the idea that e-cigarettes may cause popcorn lung came from this study.

The Dangers of Diacetyl – Does Vaping Flavored E-Liquids Cause Popcorn Lung?

According to Cancer Research UK

“There’s no good evidence that e-cigarettes could cause the lung condition called popcorn lung. There’s been no cases of popcorn lung reported in people who use e-cigarettes.”

source: https://www.cancerresearchuk.org/about-cancer/causes-of-cancer/cancer-controversies/does-vaping-cause-popcorn-lung

Despite the fact that not a single case of bronchiolitis obliterans has ever been attributed to vaping, the scare continues. 

Scientific tests performed by researchers, led by Dr. Konstantinos Farsalinos concluded that contracting bronchiolitis obliterans (“popcorn lung disease”) is rare, even in cases of exposure to high levels of diacetyl. 

Farsalinos is the world’s foremost clinical researcher on vapor product safety. He agreed with Cancer Research UK, that diacetyl in e-cigarettes is highly unlikely to cause popcorn lung; however, he did say that the ingredient was an “avoidable risk” and should be removed from vapor products.

Do Some E-liquids Still Contain Diacetyl?

When the Harvard study was released, the e-cigarette industry took action, with most companies removing the flavor additives diacetyl and acetyl proprionyl from their e-liquid formulas. Some e-liquid brands still contain very small amounts of diacetyl that can be detected in lab reports.

The UK has banned diacetyl from all e-liquids.

Check out: Where to buy U.S. e-liquids that are diacetyl and acetyl proprionyl free

So, Why Are We Publishing This Article Now?

It has been years since scientific tests concluded that vaping does not cause popcorn lung. What’s more, most manufacturers no longer use diacetyl as a flavor ingredient. The answer is that many people still believe diacetyl is found in all flavored e-liquids – and that vaping diacetyl is dangerous. The 2002 case of 2 workers in a popcorn factory who contracted bronchiolitis obliterans will not be forgotten. Neither will the sensational “diacetyl scare” headlines that appeared when the Harvard University report was published.

What About the Safety of CBD and THC Vape Oil?

More recently, many people are convinced that flavored medical marijuana, or CBD e-liquid used in pre-filled mini-tanks will give them this rare lung disease.

According to all the experts, scientists and researchers who have studied the effects of diacetyl use in e-cigs, it is not going to happen!.. yet, the now debunked fear of dangerous e-liquids continues to scare people away from vaping. 

For the record, there are over 6000 micrograms of diacetyl in every pack of cigarettes and so far not a single smoker has contracted popcorn lung.

If you are looking for more information about diacetyl and whether it can cause bronchiolitis obliterans, you can read this article from Snopes, the internet’s fact-checking resource.

Still Worried About What May Be Lurking in Your E-liquids? 

Here are some of the most reputable e-liquid companies that list all their ingredients, certifications or provide lab reports that indicate the ingredients and percentages.

Hot Juice – Pure e-liquids and CBD e-juice

CBDGenesis – CBD e-liquids made with organic hemp that is non-GMO and pesticide free 

Kind Juice all natural e-liquids

Kai’s Virgin Vapor organic e-liquids

Vaporfi e-liquids- Pure, Kosher and Diacetyl, Acetoin and Acetyl Propionyl Free

MIG Vapor – U.S. made e-liquids with no Diacetyl (lab reports included on website)

Are you concerned that vaping flavored e-liquids will cause lung disease? Do you think it is safer to smoke? We welcome your comments.

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