When people vape, the liquid in e-cigarettes heats up and turns into a mist, but this process can create harmful chemicals like formaldehyde and acrolein—things that can hurt your lungs—even though these same liquids are considered safe to eat.

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Evidence from Studies

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A Review of the Toxicity of Ingredients in e-Cigarettes, Including Those Ingredients Having the FDA’s “Generally Recognized as Safe (GRAS)” Regulatory Status for Use in Food

Narrative Review

2024 Oct 22

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Source Study

A Review of the Toxicity of Ingredients in e-Cigarettes, Including Those Ingredients Having the FDA’s “Generally Recognized as Safe (GRAS)” Regulatory Status for Use in Food

Score: 1

DOI: 10.1093/ntr/ntae123

Similar Assertions

When people vape liquids containing propylene glycol or glycerol, the heat turns them into harmful chemicals like formaldehyde and acrolein, which can irritate the lungs, damage blood vessels, and mess with the body’s internal clock.

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85%

The tasty flavors in e-cigarettes, safe to eat, can turn into harmful substances when mixed with the liquid inside the vape, and these new substances might be more toxic to your cells than the original flavors.

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73%