Are hot dogs really as dangerous as cigarettes?
Published 12 August 2026
Hello! Wednesday is our “Knowledge Day”—once a week, we share an informative article to get you thinking and help you make more informed choices.
This time, Anette Auväärt, a food and biotechnology student, writes about meat. In recent years, red meat has made headlines both for its link to cancer risk and for recommendations to eat less of it. But what do the studies actually say—and what disappears from the dinner table when meat is left off the menu?
One fact you can take away right away
In 2015, the WHO’s International Agency for Research on Cancer classified processed meat as a Group 1 carcinogen. Tobacco and asbestos belong to the same group, which is why headlines like “a slice of bacon is as dangerous as a cigarette” quickly began to appear. Such a comparison misinterprets the classification:
The group does not indicate the magnitude of the risk, but rather the strength of the evidence. It indicates the level of certainty regarding the link—not how great the risk is.
Spinach, lentils, beef—is iron really just iron?
All three contain iron, but the body doesn’t absorb it in the same way. Iron in food comes in two forms, and one of them is absorbed more efficiently and is less affected by what you eat or drink at the same time.
The article explains which form this is and what influences it. It also covers what an analysis of unprocessed red meat published in *Nature Medicine* in 2022 revealed: why an association found in observational studies isn’t yet proof of causation—and why a fresh cut of meat and a hot dog aren’t the same thing from a nutritional standpoint.
Earn a knowledge point for reading
Review questions await you at the end of the article. Our goal isn’t just to share reading recommendations, but to give you truly new knowledge—and to reward you for it. If you answer all the questions correctly, one knowledge point will be added to your account. You can see your point balance on the dashboard, and every new article gives you a chance to increase it.
About the Author
Anette Auväärt is a food and biotechnology student at TalTech. Her interest in nutrition began during the COVID-19 pandemic, when she wanted to better understand how daily food choices affect health, well-being, and productivity. Over time, this evolved into a desire to gain a deeper understanding of how the human body works and to learn how to distinguish science-based information from common myths—which is exactly what led her to study food and biotechnology. On her blog, Anette shares science-based and practical information to help readers distinguish facts from myths and make more informed dietary choices.
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Enjoy the read—and happy shopping!
