Yogurt: Medical Marvel

A brief history of a America's growing conviction that yogurt is the answer to everything

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Eun Byeol/Flickr

One of our oldest foods, the bacterial ferment of cow's milk has been reinvented in the U.S. as a health product bordering on panacea. And while there's disagreement over whether any foods should be allowed to make medical claims, the public seems slow to object. 

Why yogurt? Why now?

And can (should?) anything be done to stop it?

1900s: Russian scientist Elie Metchnikoff identifies a population in Bulgaria that subsists heavily on homemade yogurt. A Nobel Laureate, he pioneers the study of what will later be named probiotics (Latin: "for life"), live bacteria believed to do great things for the bowel when introduced via food.This is the first time that anyone's thought of bacteria as a good thing. Metchnikoff believes it's the high quantity of probiotics found in fermented milk products, like yogurt, that are responsible for the Bulgarians' good health and long lifespan. He prefers sour milk. 

October 1950: Yogurt gets its first mainstream endorsement when Reader's Digest publishes a reference to Metchnikoff's work by Gaylord Hauser, author of the original Look Younger; Live Longer

Among the Bulgarians where yogurt is a part of each meal but where diet is not outstanding in other respects, the life span is longer than that of any other peoples in the world; Bulgarians are credited with retaining the characteristics of youth to an extremely advanced age.

1980s: Frozen yogurt happens. Americans weren't ready for its tart taste when the dessert first surfaced in 1972, but by the 1980s, food scientists had figured out how to make it sweet. The sell: it's like ice cream, except you can eat as much of it as you want. It's just pure healthy carbohydrates.

Seinfeld voices the insecurities of a generation (George: "How can it not have any fat? It's too good!") in a 1993 episode

1991: An "aura of health" has officially descended upon the frozen variety of yogurt.  Americans are thrilled: a "homemaker and sculptor" from Short Hills, New Jersey tells The New York Times that she eats frozen yogurt daily. She adds, echoing Metchnikoff, "You know, if you eat yogurt you'll live to be 100." 

David Bandler, a professor of food science at Cornell University, argues that this is mere illusion. "Frozen yogurt is not yogurt; it's a frozen dessert," he insists, explaining that most varieties don't contain the bacteria cultures that give yogurt its healthful properties. The same, James Hamblin points out more recently, goes for yogurt-covered raisins

Nobody listens.

2003: A study concludes that "dietary supplementation with yogurt is a simple, effective, and safe treatment that decreases the incidence and duration of antibiotic-associated diarrhea." Doctors are advised to prescribe one cup of commercial yogurt per day for patients on antibiotics.

2006-7: The question of which came first -- Red Mango or Pinkberry -- may never be solved, but by now "all-natural" frozen yogurt has become the "it" dessert/snack/meal replacement.

As the names chosen by them and their countless imitators oh-so-subtly suggest (shoutout to Yogurtland, Berrywild, YogurtBerry, Berry Line, Yo Berry, Roseberry, Snowberry, Berri Good, Sweet Frog, FroZenYo, Orange Leaf, and Cantaloop), they're healthy because they have fruit in them. This more blatant play on yogurt as health food also emphasizes the treat's "live and active" bacteria. And it goes so far as to celebrate the tart-ness, which more closely recalls the original health food: non-frozen yogurt. It's precisely because consumers perceive it as healthy, according to Red Mango CEO, that frozen yogurt shops thrive during the economic recession. 

Presented by

Lindsay Abrams is an assistant editor at Salon and a former writer and producer for The Atlantic's Health Channel.

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