96,000-Person Constipation Study Yields Obvious Conclusion

Disclaimer: This article is based on actual news from the real world – honestly! However, it has been sprinkled with a healthy dose of satire.

After nearly a decade of painstaking observation, Mass General Brigham has successfully deployed 96,000 American adults to prove that vegetables prevent constipation, marking modern medicine’s most expensive confirmation of information previously available from any grandmother with five minutes and a disapproving look. The findings appear in Gastroenterology, where they will be read by approximately eleven people who are not the researchers’ mothers.

“Chronic constipation affects millions of people and can significantly impact a patient’s quality of life,” said senior author Kyle Staller, MD, MPH, delivering this observation with the gravitas typically reserved for announcing discoveries about cancer or particle physics rather than about pooping. “Our findings suggest that as we age, certain healthy diets may provide benefits to our gut beyond the known cardiovascular benefits.” He did not elaborate on whether additional decades of research might reveal that water hydrates or that sleep reduces fatigue. Staller’s tone suggested the kind of professional commitment that emerges when someone spends long enough studying a subject that they forget everyone else solved it intuitively decades ago. His curriculum vitae lists “bowel movement optimization” as a core competency, which must make for interesting dinner party conversations.

The study tracked participants from the Nurses’ Health Study, Nurses’ Health Study II, and the Health Professionals Follow-Up Study, three longitudinal projects that have collectively spent more grant money monitoring bathroom habits than most nations spend on their space programs. Chronic constipation was defined as symptoms persisting for 12 weeks within a year, which is both a clinical threshold and a cry for help that probably didn’t require statistical modeling to identify.

The studies have been running so long that some early participants have likely been constipated, cured, constipated again, and died of unrelated causes, all while researchers continued collecting data points. Administrative costs for the three studies combined reportedly exceed the GDP of several small island nations whose populations also eat vegetables and experience mysteriously regular bowel movements without institutional oversight.

Participants who routinely consumed Mediterranean or plant-based diets experienced lower rates of constipation, a result researchers described as “statistically significant” rather than “exactly what literally everyone predicted.” Those following Western or inflammatory diets showed increased constipation risk, confirming that a steady intake of processed cheese products does to your intestines what you’d expect processed cheese products to do to your intestines.

The study’s most surprising finding, according to Staller, was that the benefits weren’t driven by fiber alone. “We have always assumed that the benefits of eating a healthy diet would be driven by fiber,” he said, apparently unaware that nutritional science has recognized multiple bioactive compounds for decades. The research team expressed genuine shock that vegetables contain substances other than fiber, including water, micronutrients, and various compounds that don’t require a $3 million grant to understand.

Low-carb diets showed minimal impact on constipation risk, a finding that will comfort exactly nobody, since people on low-carb diets have already made peace with gastrointestinal chaos. The research did not examine whether participants on ketogenic diets were also more likely to discuss their diets unprompted, though anecdotal evidence suggests a strong correlation.

“Our findings suggest a diet rich in vegetables, nuts, and healthy fats may help prevent chronic constipation,” Staller announced, describing advice that appeared in the 1950 edition of Joy of Cooking as if it were a breakthrough comparable to antibiotics.  The research team is now seeking additional funding to determine whether physical activity might also influence health outcomes, a question they expect to definitively answer sometime in 2037.

The study did not track whether any of the 96,000 participants ever asked researchers why they were being contacted quarterly about their bowel movements. Mass General Brigham declined to comment on whether this information would require a separate institutional review. The research also did not examine whether knowing you’re in a constipation study affects your bowel movement patterns, though this meta-question probably requires another decade of investigation and a separate IRB approval. 

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