Most Americans drink at least one soda a day. It’s associated with this type of cancer

Daily Soda Habit Linked to More Than Double the Risk of Stomach Cancer, Large-Scale Study Finds

Cybersecarmor.com – For millions of Americans, reaching for a cold can of cola or a bottle of sweetened juice has become as routine as brushing teeth. New research published on August 17 in the journal Gastro Hep Advances suggests that this everyday ritual may carry a hidden cost: consuming at least one sugar-sweetened beverage per day is associated with more than twice the likelihood of developing gastric cancer compared with rarely drinking such products. The analysis drew on decades of follow-up data tracking over 100,000 participants, making it one of the most extensive dietary-cancer investigations conducted in the United States to date.

What Counts as a “Sugar-Sweetened Beverage”

The researchers defined the category broadly. Regular carbonated sodas, energy drinks, and fruit juices with added sugars all fell within the scope of the analysis. This matters because the average American consumer encounters these products far more frequently than most realize. Data from the Centers for Disease Control and Prevention indicates that 63% of U.S. adults aged 18 and older consume at least one sugar-sweetened beverage every single day. In practical terms, the habit under scrutiny is not a fringe behavior confined to a small subset of the population; it is woven into the daily routines of nearly two-thirds of grown-ups across the country.

The Study’s Lead Author on Why This Finding Matters

“This is the first study to demonstrate an association between sugar-sweetened beverage intake and gastric cancer in a U.S. population,” said Dr. Andrew T. Chan, a gastroenterologist and epidemiologist at the Mass General Brigham Cancer Institute, who served as senior author. “Gastric cancer is the fifth leading cause of cancer death worldwide, but we’ve known very little about how diet might contribute to this cancer.”

Chan’s remark underscores a gap that has persisted for years. While colorectal, breast, and liver cancers have accumulated substantial dietary-epidemiology literature, stomach cancer has received comparatively little attention from nutrition researchers. The authors noted that earlier work had already flagged links between sugar-sweetened drinks and those other malignancies, but the gastric-cancer connection remained untested in a large American cohort until now.

Understanding Gastric Cancer: Why Early Detection Is Critical

Stomach cancer can arise in any region of the stomach — the cardia, the body, or the pyloric antrum — and its prognosis shifts dramatically depending on how far the disease has spread before diagnosis. According to the Mayo Clinic, the condition becomes substantially harder to cure once it reaches advanced stages. Unlike colorectal cancer, for which routine colonoscopy screening has reduced late-stage diagnoses in developed nations, there is no widely adopted population-level screening tool for gastric cancer in the United States. This makes identifying modifiable risk factors, such as dietary patterns, especially important for public-health planning.

Artificially Sweetened Drinks: A Different Picture

Not every carbonated beverage carried the same signal. In this study, low-calorie carbonated drinks — what most consumers would call diet or zero-sugar sodas — were not associated with an elevated gastric-cancer risk. That distinction is important for readers who have switched to sugar-free options, but it does not render those products risk-free in every respect.

Aspartame, one of the most widely used artificial sweeteners in the United States, was previously classified as a “possible carcinogen” (Group 2B) by the International Agency for Research on Cancer. The U.S. Food and Drug Administration has concluded that aspartame is safe for consumption within established acceptable daily intake limits. The two designations are not contradictory: IARC’s classification reflects a level-of-evidence framework, while FDA’s determination reflects a risk-benefit assessment at realistic exposure levels. Still, the aspartame episode illustrates that “no sugar” does not automatically mean “no controversy.”

Limitations the Authors Themselves Flag

The research team was candid about the boundaries of what their data could support. Participant records contained limited detail on certain health conditions and family-history variables. Moreover, the cohort was predominantly White and ranged in age from roughly 30 to 75 years. The authors acknowledged that these constraints meant they were “unable to examine associations within racial-ethnic subgroups or younger adults.” Future work with more diverse and younger populations will be necessary to determine whether the observed association generalizes across demographic lines.

Biological Plausibility and the Road Ahead

Several mechanistic pathways could plausibly connect chronic sugar-sweetened-beverage consumption to gastric carcinogenesis. Weight gain driven by excess caloric intake, insulin resistance, chronic low-grade inflammation, and alterations to the gut microbiome have all been proposed as intermediate steps between sugary-drink consumption and tumor development. The authors emphasized, however, that confirming which — if any — of these biological routes actually mediates the observed statistical association remains an open question requiring dedicated experimental and longitudinal research.

For the average reader, the practical takeaway is not alarm but awareness. If your daily routine includes a regular soda, an energy drink, or a sweetened juice, the new evidence adds one more reason to consider moderating that habit. It does not prove that any single can causes cancer, nor does it suggest that eliminating all sugar-sweetened drinks guarantees protection. What it does do is sharpen the statistical picture enough to warrant attention from both clinicians advising patients on dietary risk factors and public-health agencies weighing whether to broaden existing nutrition guidance.