"Superfruit" A Day Keep The Doctor Away?
Dietian Keri Glassman Talks About "Superfruits" That Claim To Have Huge Health Benefits, But At Huge Costs
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Dietician Keri Glassman, left, and Early Show co-anchor Maggie Rodriguez. (CBS/The Early Show)
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According to Glassman, a superfruit is "actually a marketing term for fruits that have high in antioxidants, high in nutritional value. So hence the word 'superfruit.' It comes from the word 'superfood.' It's not a scientific word. Some of them you may have heard of. They come from all different exotic places. Some of them you may have heard of are acai, noni, mangosteen or goji berry."
Acai, noni, goji berry and mangosteen are actual fruits that claim to have health benefits.
"Acai is known to be the 'beauty berry' because it's known to be good for your skin, hair and nails," Glassman told Early Show co-anchor Maggie Rodriguez. "Then we have noni, which is supposed to support a good digestive system. Then we have the mangosteen. Mangosteen is supposed to combat fatigue and help fight infection. And then finally, we have the goji berry. And the goji is supposed to support a healthy libido and make you happy. It's known as the 'happy berry.' Who wouldn't want that?"
Although there is no conclusive scientific evidence to support the superfruits' health claims, Glassman points out that they are high in antioxidants, in which she is a huge advocate.
"Goji is about 10 times higher in antioxidants than blueberries," she said. "I love antioxidants. I talk about that all the time.
"We know that there's a lot of scientific evidence supporting the fact that -- or claiming, supporting that antioxidant fruits such as all -- we know blueberries and raspberries that they may prevent disease and help prevent aging as well. However, the specifics to these fruits are not at this moment proven."
The downside of these superfruits is their cost. The noni goes for about $39 for a bottle of juice and at least two ounces a day is suggested, Glassman explained.
Acai can also be found as a powder. Glassman points out that a lot of people are adding the superfruits into other juices now, but the first ingredient might be another juice and sugar.
"How much of the real goji or real acai are you going to actually absorb?" Glassman asked. "So if you are going to spend that money, spend it on the real thing and get that 100 percent juice."
Glassman stresses getting in two cups a day of real fruits.
"We know blueberries are good for us, raspberries are good for us, and they are high in vitamins and minerals, which is so important," she said. "So if you want to add on the expense, you want to up your nutrition a little bit, and you want to spend the money, do it. If you can afford it, do it. First, make sure you get your fruits in every day."
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Dietitian Keri Glassman indicated there is no conclusive scientific evidence to support the superfruits' health claims. Yet a database search of research at www.pubmed.org (provided by the U.S. National Library of Medicine and the National Institutes of Health) shows there are now 107 published studies on the goji berry (lycium barbarum).
Here's one of them:
Journal of Alternative & Complementary Med. 2008 May;14(4):403-12
This randomized, double-blind, placebo-controlled clinical trial examined the general effects of the orally consumed goji berry, Lycium barbarum, as a standardized juice (GoChi; FreeLife International LLC). RESULTS: Significant differences between day 1 and day 15 were found in the GoChi group (N = 16) in increased ratings for energy level, athletic performance, quality of sleep, ease of awakening, ability to focus on activities, mental acuity, calmness, and feelings of health, contentment, and happiness. GoChi also significantly reduced fatigue and stress, and improved regularity of gastrointestinal function. CONCLUSIONS: These results clearly indicate that daily consumption of GoChi for 14 days increases subjective feelings of general well-being, and improves neurologic/psychologic performance and gastrointestinal functions. The data strongly suggest that further research is indicated to confirm and extend knowledge of the potential effects of Lycium barbarum upon human health.
As consumers, my wife and I have been using goji juice for five years now. During that time neither of us has been sick. We both sleep better and wake up feeling more rested. As a nutritionist I frequently recommend it to clients, witnessing extraordinary health benefits personally and professionally.
Jeff Johnson, MS - Nutritionist