SUBSCRIBE

Breaking News on Supplements, Health & Nutrition - Europe US edition | APAC edition

News > Research

Read more breaking news

 

 

Freeze-dried strawberries show heart health benefits: Human data

By Stephen DANIELLS , 27-Mar-2014
Last updated on 27-Mar-2014 at 18:10 GMT2014-03-27T18:10:09Z

Freeze-dried strawberries show heart health benefits: Human data

Daily consumption of a beverage containing freeze-dried strawberries may significantly lower total and LDL-cholesterol levels, says a new study.

Twelve weeks of 50 grams per day of the berries was also associated with significant reductions in small LDL particles, reported to be more likely to cause atherosclerosis, according to findings published in the Journal of Nutrition .

The new data, published by researchers from Oklahoma State University, Queen’s University of Belfast (Northern Ireland), and the University of Oklahoma Health Sciences Center, adds to the potential heart health benefits of strawberries and their extracts. In 2009, researchers from Oklahoma State University reported that eight weeks of supplementation with a freeze-dried strawberry powder was associated with a reduction of LDL-cholesterol levels of 11% in obese people (Nutrition Research, Vol. 30, pp. 462-469).

A study in overweight women a year earlier reported that freeze-dried strawberry powder may reduce total and LDL cholesterol levels by 5 and 6%, respectively (Nutrition Journal, 8:43).

Recently, Italian scientists reported in the Journal of Nutritional Biochemistry that one month of eating 500 grams per day of the Alba cultivar of strawberries resulted in significant reductions to total cholesterol of almost 9%, LDL cholesterol of about 14%, and triglycerides of almost 21.

Improvements were also recorded in antioxidant status of the 23 healthy volunteers, while levels were reduced of 8-hydroxy-2'-deoxyguanosine (8-OHdG), a marker for oxidative stress, wrote the researchers.

New data

For the new study, Oklahoma State University’s Arpita Basu and her co-workers recruited 60 adults with excess fat around their belly (abdominal adiposity) and elevated lipids levels to participate in their randomized dose-response controlled trial. The participants were randomly assigned to receive either a low-dose strawberry beverage (25 grams per day), a high dose strawberry drink (50 grams per day), or control versions of each drink.

After 12 weeks of intervention, the results showed a dose-dependent effect on total and LDL cholesterol, and small LDL particle concentration, with the results only statistically significant in the high-dose group, compared to controls.

Indeed, total and LDL cholesterol decreased by 33 mg/dL and 28 mg/dL, respectively, said the researchers, while the small LDL particle concentration decreased by 301 nmol/L.

In addition, both doses of strawberries were found to decrease levels of malondialdehyde (MDA - a reactive carbonyl compound and a well-established marker of oxidative stress). The decrease was similar for both doses, added Dr Basu and her co-workers.

No effects were found on other biomarkers, including HDL cholesterol, adiposity, triglycerides, blood pressure, and blood glucose levels.

“To the best of our knowledge, this is the first report of a 12-wk randomized controlled trial showing the effects of a higher dose of strawberries in lowering conventional serum total and LDL cholesterol and NMR-derived small LDL particle concentrations when compared with a lower dose in obese adults,” wrote the researchers. "In general, strawberries exerted antioxidant effects by decreasing lipid peroxidation, although no effects were noted on adiposity, blood pressure, glycemic control, or inflammation.

"Thus, strawberries as a popular fruit in the U.S. diet deserve additional investigation concerning their effects on biomarkers of CVD risk in adults, including those with type 2 diabetes and related lipid and vascular abnormalities."

The study was partly funded by the California Strawberry Commission.

Source: Journal of Nutrition
Published online ahead of print, doi: 10.3945/jn.113.188169
“Freeze-Dried Strawberries Lower Serum Cholesterol and Lipid Peroxidation in Adults with Abdominal Adiposity and Elevated Serum Lipids”
Authors: A. Basu, N.M. Betts, A. Nguyen, E.D. Newman, D. Fu, T.J. Lyons

Related products

Live Supplier Webinars

Polyphenols tipped to become the way to innovate in Sports Nutrition
Fytexia
Alpha & Omega in Sports Nutrition – Using Omega 3’s and A-GPC to improve performance and recovery.
KD Pharma
Orally bioavailable standardized botanical derivatives in sport nutrition: special focus on recovery in post-intense physical activities
Indena
Collagen in motion: move freely and keep your injuries in check
Leading manufacturer of gelatine and collagen peptides
Life’s too short for slow proteins. Whey proteins hydrolysates: Fast delivery for enhanced performance
Arla Foods Ingredients
What it Takes to Compete and Win in Today’s Sports Nutrition Market
Capsugel
Sports Nutrition Snapshot: Key regional drivers and delivery format innovations
William Reed Business Media
Gutsy performance: How can microbiome modulation help athletes and weekend warriors
William Reed Business Media
Pushing the boundaries: Where’s the line between ‘cutting edge nutrition’ and doping
William Reed Business Media

On demand Supplier Webinars

High-amylose maize starch may reduce the risk of type 2 diabetes: what does this qualified health claim mean?
Ingredion
Balancing Innovation and Risk in Sports Nutrition Ingredients
NSF-International
Explaining bio-hacking: is there a marketing opportunity for food companies?
William Reed Business Media
Personalized Nutrition – how an industry can take part in shaping the future of Nutrition
BASF Nutrition & Health
Find out Nutritional and ingredient lifecycle solutions and strategies!
Roquette
Is the time rIpe for I-nutrition?
William Reed Business Media
The Advantage of Outsourcing Fermentation-based Manufacturing Processes
Evonik Health Care
All supplier webinars