Vol 16, No 2 (2020):79-84

Accuracy of the amount of trans-fatty acids in traffic light labelling of traditional sweets distributed in Isfahan, Iran

Neda Ghazavi, Ebrahim Rahimi, Zahra Esfandiari, Amir Shakerian

DOI: http://dx.doi.org/10.22122/arya.v16i2.2005


BACKGROUND: High consumption of trans-fatty acids (TFAs) is introduced as dietary risk factor of cardiovascular diseases (CVDs). The accuracy of the information shown on the traffic light (TL) labelling has a significant influence on consumers to reduce TFA content in foods. This study is conducted aiming to determine the TFA content in traditional sweets distributed in Isfahan, Iran. Furthermore, the accuracy of the amount of TFAs on TL was considered by comparing it with the experimentally analyzed values.

METHODS: In this cross-sectional study, a total of 99 Iranian traditional sweets with a TL label were randomly collected from confectionary shops located in Isfahan. TFAs were analyzed by gas chromatography (GC).

RESULTS: TFAs were detected in all samples with the total average of 1.6 ± 0.3% in total fat (range of 0.040 ± 0.001 to 7.900 ± 1.100%). More than half of the samples had less than 2% of TFAs in the total fat. Overall, 81.8% of the studied products with TL labelling showed a discrepancy in the TFAs in the values analyzed in laboratory.

CONCLUSION: In the present study, the discrepancy of TFAs in the experimentally measured values with TL food labelling was observed in more than 80% of Iranian traditional sweets. Most of the samples contained less than 2% of TFAs that is defined as a limit in Iran Food and
Drug Administration (IFDA). These findings could be alarming for the consumers of this kind of products.



Trans Fatty Acids; Food; Data Accuracy; Iran

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Peykari N, Hashemi H, Dinarvand R, Haji-Aghajani M, Malekzadeh R, Sadrolsadat A, et al. National action plan for non-communicable diseases prevention and control in Iran; a response to emerging epidemic. J Diabetes Metab Disord 2017; 16: 3.

Kiani K, Roohafza H, Gharipour M, Dianatkhah M, Talaei M, Oveisgharan S, et al. The association between the serum 25-hydroxyvitamin D level and cardiovascular events in individuals with and without metabolic syndrome. ARYA Atheroscler 2018; 14(6): 254-9.

Esfandiari Z, Mirlohi M, Jila M Tanha JM, Hadian M, Mossavi SI, Ansariyan A, et al. Effect of Face-to-Face Education on Knowledge, Attitudes, and Practices Toward "Traffic Light" Food Labeling in Isfahan Society, Iran. Int Q Community Health Educ 2020; 272684X20916612.

World Health Organization. Guidelines: Saturated fatty acid and trans-fatty acid intake for adults and children [Online]. [cited 2018]. Available from: URL: https://extranet.who.int/dataform/upload/surveys/666752/files/Draft%20WHO%20SFA-TFA%20guidelines_04052018%20Public%20Consultation(1).pdf

Pantazopoulos P, Kwong K, Lillycrop W, Wong L, Gao Y, Chalouh S, et al. Trans and saturated fat on food labels in Canada: Fact or fiction? Can J Public Health 2011; 102(4): 313-6.

Ghazavi N, Rahimi E, Esfandiari Z, Shakarian A. Analytical study of saturated fatty acids as an important indicator of cardiovascular disease in Iranian traditional sweets. J Shaheed Sadoughi Univ Med Sci 2018; 26(9): 770-83. [In Persian].

Asgary S, Nazari B. Facts about trans fatty acids. ARYA Atheroscler 2008; 4(1): 42-7.

Kong K, Liu F, Tao Y. The presence and accuracy of nutritional labelling of pre-packaged foods in Shanghai. Asia Pac J Clin Nutr 2017; 26(3): 478-83.

Esfandiari Z, Marasi MR, Estaki F, Sanati V, Panahi E, Akbari N, et al. Influence of education on knowledge, attitude and practices of students of Isfahan University of Medical Sciences to traffic light inserted on food labeling. Tehran Univ Med J 2019; 77(1): 54-62. [In Persian].

Fitzpatrick L, Arcand J, L'Abbe M, Deng M, Duhaney T, Campbell N. Accuracy of Canadian food labels for sodium content of food. Nutrients 2014; 6(8): 3326-35.

Jumpertz R, Venti CA, Le DS, Michaels J, Parrington S, Krakoff J, et al. Food label accuracy of common snack foods. Obesity (Silver Spring) 2013; 21(1): 164-9.

Nazari B, Asgary S, Azadbakht L. Fatty acid analysis of Iranian junk food, dairy, and bakery products: Special attention to trans-fats. J Res Med Sci 2012; 17(10): 952-7.

Institute of Standards and Industrial Research of Iran. Microbiological of pastry and confectionary product-Specifications and test method. No: 2395. [Online]. [cited 2018]; Available from: URL: http://standard.isiri.gov.ir/StandardView.aspx?Id=46634

Horwitz W. Official methods of analysis of the AOAC International. Rockville, MA: Association of Official Analytical Chemists; 2012.

Wang Q, Afshin A, Yakoob MY, Singh GM, Rehm CD, Khatibzadeh S, et al. Impact of nonoptimal intakes of saturated, polyunsaturated, and trans fat on global burdens of coronary heart disease. J Am Heart Assoc 2016; 5(1).

Costa N, Cruz R, Graca P, Breda J, Casal S. Trans fatty acids in the Portuguese food market. Food Control 2016; 64: 128-34.

Perez-Farinos N, Dal Re Saavedra MA, Villar VC, Robledo de DT. Trans-fatty acid content of food products in Spain in 2015. Gac Sanit 2016; 30(5): 379-82.

Trattner S, Becker W, Wretling S, Ohrvik V, Mattisson I. Fatty acid composition of Swedish bakery products, with emphasis on trans-fatty acids. Food Chem 2015; 175: 423-30.

Scheeder MR, Shawish KA, Colombani RC. Trans fatty acid content of selected Swiss foods: The TransSwissPilot study. Journal of Food Composition and Analysis 2009; 22: 479-84.

Becker W, Eriksson A, Haglund M, Wretling S. Contents of total fat, fatty acids, starch, sugars and dietary fibre in Swedish market basket diets. Br J Nutr 2015; 113(9): 1453-65.

Karabulut I. Fatty acid composition of frequently consumed foods in Turkey with special emphasis on trans fatty acids. Int J Food Sci Nutr 2007; 58(8): 619-28.

Iranian Food and Drug Administration. Instructions and guidelines for traffic light indicator [Online]. [cited 2017]; Available from: URL: http://fdo.tums.ac.ir/html

Food Safety authority of Ireland. Accuracy of nutrition labelling of pre-packaged food in Ireland [Online]. [cited 2010]; Available from: URL:



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