Abstract
This study compared the viscosity (thickness) of five different liquids thickened to nectar- or honey-like consistencies with a variety of thickening products. Samples were prepared using manufacturer guidelines and viscosity was measured at the recommended time to thicken (standard) and also after 10 and 30 min. Centipoise (cP) measurements of the samples were compared across products and within product lines for each level of thickness at all three time periods. Statistical analysis showed that the viscosity of a nectar- or honey-like liquid was highly dependent on the type of thickening product and the time it was allowed to thicken. Variability in viscosity measurements also was noted within a product line for thickening various liquids. Results are discussed in relation to the National Dysphagia Diet guidelines for nectar- and honey-like consistencies.
References
O’Gara JA: Dietary adjustments and nutritional therapy during treatment for oral-pharyngeal dysphagia. Dysphagia 4:209–212, 1990
Logemann JA: Evaluation and Treatment of Swallowing Disorders, 2nd ed. Austin, TX: Pro-Ed, 1998
Huckabee ML, Pelletier CA: Management of Adult Neurogenic Dysphagia. San Diego, CA: Singular, 1999
Hamlet S, Choi J, Zormeier M, Shamsa F, Stachler R, Muz J, et al.: Normal adult swallowing of liquid and viscous material: Scintigraphic data on bolus transit and oropharyngeal residues. Dysphagia 11:41–47, 1996
Crary MA, Groher ME: Introduction to Adult Swallowing Disorders. St. Louis, MO: Butterworth Heinemann, 2003
Kuhlemeier KV, Palmer JB, Rosenberg D: Effect of liquid bolus consistency and delivery method on aspiration and pharyngeal retention in dysphagia patients. Dysphagia 16:119–122, 2001
Glassburn DL, Deem JF: Thickener viscosity in dysphagia management: Variability among speech–language pathologists. Dysphagia 13:218–222, 1998
Mills RH: Rheology overview: Control of liquid viscosities in dysphagia management. Nutr Clin Pract 14:S52–S56, 1999
Penman JP, Thomson M: A review of the textured diets developed for the management of dysphagia. J Hum Nutr Diet 11:51–60, 1998
Steele CM, Van Lieshout PH, Goff DH: The rheology of liquids: A comparison of clinicians’ subjective impressions and objective measurement. Dysphagia 18:182–195, 2003
Pelletier CA: A comparison of consistency and taste of five commercial thickeners. Dysphagia 12:74–78, 1997
Lotong V, Chun SS, Chambers E IV, Garcia JM: Texture and flavor characteristics of beverages containing commercial thickening agents for dysphagia diets. J Food Sci 68:1537–1521, 2003
Brown A, Mills RH, Daubert CR, Casper ML: Establishing labels and standards for thickened liquids in the dysphagia diet. Consult Diet 23:2–5, 1998
Macqueen CE, Taubert S, Cotter D, Stevens S, Frost GS: Which commercial thickening agent do patients prefer? Dysphagia 18:46–52, 2003
Pelletier CA, Lawless HT: Measuring taste acceptance in neurologically impaired adults. Food Qual Pref 14:595–602, 2003
Whelan K: Inadequate fluid intakes in dysphagic acute stroke. Clin Nutr 20:423–428, 2001
National Dysphagia Task Force: National dysphagia diet: Standardization for optimal care. Chicago, IL: American Dietetic Association, 2002
Garcia JM, Chambers E, Matta Z, Clark M: Viscosity of Nectar & Honey-thick Liquids Measured at 3 Time Intervals. Poster session presented at the annual convention of the American Speech-Language-Hearing Association, Chicago, 2003
Akoh CC: Fat replacers. Food Technol 52:47–53, 1998
Mills RH: Evaluation of dysphagia in adults: Expanding the diagnostic options. Austin, TX: Pro-Ed, 2000
Robbins JA, Nicosia M, Jind JA, Gill GD, Blanco R, Logemann JA: Defining physical properties of fluids for dysphagia evaluation and treatment. Perspectives on swallowing and swallowing disorders. Newslett Am Speech Lang Hear Assoc 11:16–20, 2002
American Society for Testing and Materials: Annual Book of ASTM Standards, Vol. 14.03. West Conshohocken, PA, ASTM, 1991
Whistler RL, BeMiller JN: Carbohydrate Chemistry for Food Scientists. St. Paul, MN: Eagan Press, 1997
Rao A: Rheology of Fluid and Semisolid Foods: Principles and Applications. Gaithersburg, MD: Aspen, 1999
Hoefler AC: Hydrocolloids: Practical Guides for the Food Industry. St. Paul, MN: Eagan Press, 2004
Thomas DJ, Atwel WA: Starches: Practical Guides for the Food Industry. St. Paul, MN: Eagan Press, 1999
Cichero JAY, Jackson O, Halley PJ, Murdoch BE: How thick is thick? Multicenter study of the rheological and material property characteristics of mealtime fluids and videofluoroscopy fluids. Dysphagia 15:188–200, 2000
Cichero JAY, Jackson O, Halley PJ, Murdoch BE: Which one of these is not like the others? An inter-hospital study of the viscosity of thickened liquids? J Speech Lang Hear Res 43:537–547, 2000
Steffe JF: Rheological methods in food process engineering, 2nd ed. East Lansing, MI: Freeman Press, 1996
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This research was supported by a grant from the Kansas Health and Nutrition Fund.
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Garcia, J.M., Chambers, E., Matta, Z. et al. Viscosity Measurements of Nectar- and Honey-thick Liquids: Product, Liquid, and Time Comparisons. Dysphagia 20, 325–335 (2005). https://doi.org/10.1007/s00455-005-0034-9
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DOI: https://doi.org/10.1007/s00455-005-0034-9