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

News > Research

Read more breaking news



Barley extracts show weight management potential: Human data

By Stephen Daniells , 12-Apr-2013

Barley extracts show weight management potential: Human data

Adding boiled barley kernels to the diet may increase levels of hormones linked to satiety and reduce subsequent energy intakes, says a new study from Sweden.

The apparent benefits of the barley were linked to a potential prebiotic effect of its indigestible carbohydrate content (dietary fiber and resistant starch), which could change gut microbe populations and influence the metabolism of the host, according to findings published in the Nutrition Journal .

“The results indicate that indigestible carbohydrates, as present in barley kernels, have the potential to facilitate glucose regulation in healthy subjects in a time period of 10.5-16 h, decrease inflammatory markers, decrease free fatty acids, decrease hunger sensations and reduce energy intake at a subsequent lunch,” wrote researchers from Lund University.

“Interestingly, the barley kernels evening meal resulted in an increased release of [satiety hormone] GLP-1 during the whole experimental period.”

Gut microbiota and weight management

The science adds to the developing field of weight management by modifying the gut microflora.

With the World Health Organization estimating that by 2015, there will be more than 1.5 billion overweight consumers, incurring health costs beyond $117 billion per year in the US alone, the opportunities for a scientifically-substantiated weight management food product are impressive.

A breakthrough paper published in Nature in December 2006 (Vol. 444, pp. 1022-1023, 1027-1031) reported that microbial populations in the gut are different between obese and lean people, and that when the obese people lost weight their microflora reverted back to that observed in a lean person, suggesting that obesity may have a microbial component.

Prebiotics are “non-digestible (by the host) food ingredients that have a beneficial effect through their selective metabolism in the intestinal tract” (Gibson et al. 2004).

According to a 2010 review in the International Dairy Journal (Vol. 20, pp. 277-280), Dr Nathalie Delzenne and Dr Patrice Cani from the Catholic University of Louvain state that data already exists showing that inulin-type prebiotics may reduce appetite, increase satiety, and thereby decrease the amount of energy consumed. However, such effects were only noted after several weeks and no such effects being observed over a 48-hour period.

Barley’s potential

The Lund University data indicates that such effects may be achievable quicker with barley, with changes to appetite-regulating hormones observed after only two meals.

Nineteen young adults were recruited to participate in the randomized, cross-over study. Participants were randomly assigned to consumer late evening meals with additional boiled barley kernels or white wheat bread. Blood was collected during the following breakfast and lunch meals.

The barley kernels were associated with increased GLP-1 levels, compared with white bread, while free fatty acid levels decreased, and there was a  trend to reduced inflammatory markets, such as IL-6.

The researchers also noted a significant reduction in energy intake during lunch the next day, compared with the white bread group.

“In the present study, the barley kernels evening meal decreased the feeling of hunger during the whole experimental day, as compared to the evening white bread, and reduced voluntary energy intake (−12%) at lunch,” wrote the researchers.

The results in present study are thus in accordance with previous studies showing that GLP-1 reduce food intake and increase satiety in both lean and obese subjects

“It can be suggested that the effects on gastro-intestinal hormones seen in the present study after the barley kernels evening meal, stem from colonic fermentation of indigestible dietary fiber in the barley kernels.”

Source: Nutrition Journal
2013, 12:46 doi:10.1186/1475-2891-12-46
“Effects of indigestible carbohydrates in barley on glucose metabolism, appetite and voluntary food intake over 16 h in healthy adults”
Authors: E.V. Johansson, A.C. Nilsson, E.M. Ostman, I.M. Bjorck

Related products

Live Supplier Webinars

Polyphenols tipped to become the way to innovate in Sports Nutrition
Orally bioavailable standardized botanical derivatives in sport nutrition: special focus on recovery in post-intense physical activities
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
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
Alpha & Omega in Sports Nutrition – Using Omega 3’s and A-GPC to improve performance and recovery.
KD Pharma

On demand Supplier Webinars

High-amylose maize starch may reduce the risk of type 2 diabetes: what does this qualified health claim mean?
Balancing Innovation and Risk in Sports Nutrition Ingredients
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!
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