Second in Tribune Series: Supplement Makers Seek Scientific Proof of Claims
Supplement makers seek scientific proof of claims
By Kirsten Stewart
The Salt Lake Tribune
Published: February 21, 2011 10:02AM
Companies such as Tahitian Noni International, headliners of Utah’s booming nutritional supplement industry, built fortunes extolling the healing powers of juices made from exotic, tropical “super fruits.” Tahitian Noni champions the noni, XanGo touts the mangosteen, and MonaVie boasts the once-obscure, now wildly popular açai (AH-sigh-EE).
But after nutritionists questioned some of their health claims, manufacturers rejected the “super fruit” label.
They’re now rebranding their products as medicinal and pumping millions into research — not just test tube analyses of key ingredients, but randomized, placebo-controlled human trials on whole formulas.
“We don’t rely on third-party research. We study our own finished product. We want to know that it has benefits as consumed,” said Brett West, research director at Tahitian Noni in Orem.
In one company-funded study, the juice reduced biomarkers that indicate cancer risk in 120 heavy smokers. Another study suggested the juice can reduce high blood pressure in adults. Both were published in professional, peer-reviewed journals.
In 2009, XanGo in Lehi tested its juice on 122 overweight and obese adults. At a dose of 18 ounces per day — far higher than its label recommends — the juice reduced indicators of inflammation, which may contribute to heart disease and diabetes, the study’s authors found.
But experts say they’re a long way from scientific proof. And without more independent research, there’s a void for thirsty shoppers.
“Just claiming a fruit has antioxidants or bioindicators of inflammation doesn’t mean it has lasting effects,” said Wayne Askew, chairman Continue reading…




