🔥Esophageal cancer

#1Family history[1]8×

In a population-based case-control study, one first-degree relative with esophageal cancer went with 85% more esophageal squamous-cell cancer, and the excess rose with the number of relatives affected: both parents affected carried an 8-fold excess.

Any strong family history of cancer?

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#2Alcohol[2]+454%

Across 40 case-control and 13 cohort studies, moderate drinking (roughly one to four drinks a day) went with 2.62 times more esophageal squamous-cell cancer, and heavy drinking (four or more) with 5.54 times more; alcohol works mainly through this squamous-cell route.

How much alcohol do you drink?

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#3Body weight[3]+173%

Weight works through the other route: reflux and Barrett’s esophagus feeding the adenocarcinoma type.

How would you describe your weight?

Same number, 2 answers: The meta-analysis pooled everyone with a BMI of 30 or over as one obese group.

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#4Smoking[4]+168%

Across 178 studies published up to 2026, current smokers got esophageal cancer at 2.68 times the rate of never smokers, and former smokers at 1.71 times; the excess was steeper for the squamous-cell type (3.03×) than the adenocarcinoma type (2.25×).

Do you smoke?

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#5Processed meat[5]+59%

In the WCRF/AICR’s pooled cohort analysis, every 50 g a day of processed meat (bacon, deli meat, sausage) went with 59% more esophageal squamous-cell cancer.

How often do you eat processed meat (bacon, deli, sausage)?

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#6Oral hygiene[6]+53%

Across nine studies and over 113,000 people, heavy tooth loss went with 53% more esophageal cancer than the least tooth loss; a separate study in a high-risk region found skipping daily brushing carried a similar excess on its own, seemingly independent of smoking.

How often do you see a dentist?

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#7Fruit & vegetables[7]−45%

Across 32 studies and over 10,000 cases, the highest fruit and vegetable eaters got esophageal squamous-cell cancer about half as often as the lowest: relative risk 0.53 for fruit and 0.56 for vegetables, highest versus lowest intake.

How many servings of vegetables and fruit do you eat a day?

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#8Physical inactivity[8]−42%

In 1.44 million adults across 12 cohorts, the most active tenth developed 42% less esophageal adenocarcinoma than the least active tenth, likely running through weight and reflux.

How many days a week do you get 30+ minutes of exercise?

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#9Diabetes[9]+30%

Across 17 studies, diabetes went with 30% more esophageal cancer, the excess showing up in men (28% more) but not clearly in women.

What’s your blood sugar like?

Same number, 2 answers: The meta-analysis compared diabetes with no diabetes; it did not split by how well it was controlled.

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#10Waist size[10]

Across seven prospective cohorts and 913,182 people, the largest waists went with 2.06 times more esophageal cancer than the smallest.

How’s your waistline?

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