Tasty Solution: Better beverages for people who have trouble swallowing

August 26, 2013 by Nicole Miller
Rich Hartel and JoAnne Robbins taste a prototype of drinks that they believe will improve upon commercial products available for people with swallowing disorders. Credit: Sevie Kenyon

After having a stroke in 2008, Jan Blume lost the ability to swallow for two full years. As she slowly regained that vital function, she faced a new challenge: drinking the thickened beverages that are recommended for people with swallowing problems, or dysphagia. She found the drinks almost intolerable.

"They taste bad and the texture is so weird," recalls Blume, a retired nurse living in Appleton who can now eat and drink whatever she wants. "At some point, I would have just stopped using them—and either done okay or developed problems."

Fortunately there may soon be a better beverage option for people with swallowing problems, thanks to collaboration between a dysphagia specialist at the UW-Madison School of Medicine and Public Health—and a candy expert in the College of Agricultural and Life Sciences.

It started by chance when JoAnne Robbins, head of the medical school's Swallowing, Speech and Dining Enhancement Program, asked CALS Rich Hartel if she could borrow his viscometer, a device that measures , or the thickness of fluids.

"After learning that one of Rich's areas of expertise was chocolate, I mentioned that there are all these awful-tasting drinks made for people with , and nothing in chocolate," recalls Robbins, a professor of medicine with an affiliate position in the CALS nutritional sciences department. "So we decided to develop a thickened, together."

The biomechanical events of swallowing are complex, involving 40 sets of muscles. Many things—including injury, illness and natural due to aging—can cause dysphagia, which afflicts some 18 million adults in the United States.

The condition can be embarrassing. Some people with dysphagia simply stop going to restaurants or even eating with their families at home due to the struggle to swallow or the length of time it takes them to finish a meal. "This can have a devastating impact on ," says Robbins.

But it's more than just a quality-of-life issue, notes Robbins. Dysphagia can cause dehydration, hunger and malnutrition. Worse, if people with dysphagia aspirate liquids or food into their lungs, it can lead to pneumonia—and possibly death.

Many patients with are advised to drink thickened beverages, which tend not to leak into the airway. But these products often leave much to be desired, and not just because of a bad flavor.

"The commercial products that are out there don't match the diagnostic standards. So people think they're buying a 'nectar thick' beverage, which is supposed to be a certain viscosity, but it'll turn out that it's not even close," says Hartel.

That's where Hartel and Robbins figured they could help: by developing what they call "biophysically based fluids" that match the diagnostic standards—making them safer for patients to drink—and that also taste good.

With the support of a U.S. Department of Agriculture grant, Hartel analyzed 15 thickeners and developed beverages using a handful of them. Robbins tested the drinks for safety in her patients, and a third team member, University of Minnesota researcher Zata Vickers, gathered key sensory data.

Ultimately the team gave up on chocolate after reading a number of studies showing that citrus flavors elicit a faster, better swallow. They are in the process of patenting their beverage technology through the Wisconsin Alumni Research Foundation, and are excited for the day when people who must drink thickened beverages—as Jan Blume did—will have a safer, tastier option.

"I'm in this to make my patients feel better," says Robbins. Of her CALS collaborator, Robbins says, "Rich is a very good partner. He was open to expanding the focus of his research program. He liked the idea of helping people directly."

Explore further: New dysphagia and medicines resource now live

Related Stories

New dysphagia and medicines resource now live

May 1, 2013
Healthcare professionals caring for patients with dysphagia (swallowing difficulties) now have access to a new and comprehensive online resource called 'Medicines Optimisation in Patients with Dysphagia' (www.dysphagia-‐medicine.com/).

Dysphagia not tied to post-anterior cervical op swelling

October 7, 2012
(HealthDay)—Although significant soft-tissue swelling can occur after anterior cervical discectomy and fusion (ACDF) procedures, the width of the prevertebral soft-tissue swelling on radiographic analysis does not correlate ...

Recommended for you

When traveling on public transport, you may want to cover your ears

November 22, 2017
The noise levels commuters are exposed to while using public transport or while biking, could induce hearing loss if experienced repeatedly and over long periods of time, according to a study published in the open access ...

Different types of alcohol elicit different emotional responses

November 22, 2017
Different types of alcohol elicit different emotional responses, but spirits are most frequently associated with feelings of aggression, suggests research published in the online journal BMJ Open.

Air pollution linked to poorer quality sperm

November 22, 2017
Air pollution, particularly levels of fine particulate matter (PM2.5), is associated with poorer quality sperm, suggests research published online in Occupational & Environmental Medicine.

Sunrise and sunset guide daily activities of city-dwellers

November 21, 2017
Despite artificial lightning and social conventions, the dynamics of daylight still influence the daily activities of people living in modern, urban environments, according to new research published in PLOS Computational ...

Older men need more protein to maintain muscles

November 21, 2017
The amount of protein recommended by international guidelines is not sufficient to maintain muscle size and strength in older men, according to a new study.

Exercising and eating well are greater contributors to health than standing at work

November 21, 2017
By now you've probably heard the edict from the health community: Sitting is the new smoking. Perhaps you've converted to a standing desk, or maybe you have a reminder on your phone to get up once an hour and walk around ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.