Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Heightened sense of taste can promote weight loss

18.06.2008
People can lose weight by flavoring their food with calorie-free seasonings and sweeteners, which may make them feel full faster and decrease their consumption, according to a new study. The results will be presented at The Endocrine Society's 90th Annual Meeting in San Francisco.

Alan Hirsch, MD, founder and neurologic director of the Smell & Taste Treatment and Research Foundation in Chicago, studied "tastants," substances that can stimulate the sense of taste. He asked 2,436 overweight or obese individuals to sprinkle a variety of savory or sweet crystals on their food before eating their meals during the 6-month study period.

Subjects put liberal applications of the salt-free savory flavors on salty foods and applied the sugar-free sweet crystals on sweet or neutral-tasting foods. They did not know what the flavors were other than salty or sweet. The hidden flavors of the savory tastants were cheddar cheese, onion, horseradish, ranch dressing, taco, or parmesan. Sweet flavors were cocoa, spearmint, banana, strawberry, raspberry, and malt.

A control group of 100 volunteers did not use tastants. Both groups were allowed to diet and exercise if they were already doing so. For both subjects and controls, Hirsch measured weight and body mass index (BMI)—a measure of height and weight—before and after the study.

At the start of the study, the treatment group had an average weight of 208 pounds and average BMI of 34, which is considered obese. After 6 months of using the crystals, the 1,436 subjects who completed the study lost an average of 30.5 pounds, compared with just 2 pounds for the untreated controls. Their BMI dropped by an average of 5, moving them from obesity to the overweight range. Controls had an average BMI decrease of 0.3.

Hirsch theorized that subjects lost more weight than controls did because the tastants made them feel full faster and therefore eat less. However, he did not track the amount of food the subjects ate. Another possibility, he said, is that the crystals improved the taste of bland but healthy foods, such as tofu and some vegetables, causing a change toward healthier eating habits. He said he believes this approach works because, unlike most diets, it is not based on food restriction.

Subjects lost an average of nearly 15 percent of their body weight, results showed. It is not clear whether the apparent weight loss benefits of the tastants would extend past 6 months or to people who weigh less than the obese subjects in this study.

"It could be that the percent of weight reduction would be lower in people who are less obese," Hirsch said. "In theory, tastants won't work for people who eat even when they're full and for people who have lost their sense of smell."

Hirsch said the tastants worked so well that they contributed to the dropout rate. Some of the subjects stopped the study before 6 months because they already had reached their ideal body weight—an unexpected result, he said.

Despite the tastant crystals not yet being commercially available, Hirsch said that people can use these techniques of enhancing their senses of smell and taste, to lose weight now. "Sniff your food before you eat it. Chew it a lot. Choose low-calorie foods and season them," he suggested.

Aaron Lohr | EurekAlert!
Further information:
http://www.endo-society.org

More articles from Studies and Analyses:

nachricht Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

Im Focus: Optoelectronic Inline Measurement – Accurate to the Nanometer

Germany counts high-precision manufacturing processes among its advantages as a location. It’s not just the aerospace and automotive industries that require almost waste-free, high-precision manufacturing to provide an efficient way of testing the shape and orientation tolerances of products. Since current inline measurement technology not yet provides the required accuracy, the Fraunhofer Institute for Laser Technology ILT is collaborating with four renowned industry partners in the INSPIRE project to develop inline sensors with a new accuracy class. Funded by the German Federal Ministry of Education and Research (BMBF), the project is scheduled to run until the end of 2019.

New Manufacturing Technologies for New Products

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

A new technique isolates neuronal activity during memory consolidation

22.06.2017 | Life Sciences

Plant inspiration could lead to flexible electronics

22.06.2017 | Materials Sciences

A rhodium-based catalyst for making organosilicon using less precious metal

22.06.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>