Scientific Irregularity

Editorial
Copyright 1999 Detroit News
January 23, 1999




Break out the Wonder Bread! After years of gnawing on intestine-scrubbing foodstuffs, we're now being told by researchers that fiber does not prevent colon cancer.

The notion that the dining room equivalent of cud could actually thwart colorectal disease was first advanced by a British missionary to explain differences in cancer rates between the world's rich and poor. Thus did roughage become the culinary rage -- even the National Cancer Institute took to preaching the value of a Third World diet. Evidence to the contrary was simply ignored.

But in this week's New England Journal of Medicine, Harvard researchers expose the fiber principle as a fib in reporting on the largest fiber-cancer study ever conducted. The rate of colon disease among 88,000 nurses remained the same regardless of dietary fiber content. (High-fiber diets, the researchers contend, remain useful in preventing heart disease.)

Still, the news is particularly hard to swallow for millions of Americans intent on eliminating risk from their lives. But the study also stands as a useful reminder that all the nostrums foisted upon us by do-gooders of various stripes are best taken with a healthy dose of skepticism.

And that goes double for government. The seemingly endless proscriptions from regulators more often are products of politics than science. The social costs of such mandates ultimately prove far more deleterious than the threat they presume to prevent.

Much as we prefer certainty in all we do, science cannot deliver all the answers all the time. The scientific method is more tedious than swift, better suited to disproving falsehood than determining truth.

In a universe of such infinite complexity, better to live it up a bit rather than wallow in fear.

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