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Foods 2017, 6(8), 61; https://doi.org/10.3390/foods6080061

Seasonal Variation in Fat Quality and Conjugated Linoleic Acid Content of Dairy Products from the Tropics: Evidence of Potential Impact on Human Health

1
Laboratory of Food Science and Nutritional Biochemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
2
Department of Food Science, School of Nutrition, Federal University of Rio de Janeiro State, Rio de Janeiro 22270-000, Brazil
*
Author to whom correspondence should be addressed.
Received: 16 June 2017 / Revised: 23 July 2017 / Accepted: 25 July 2017 / Published: 1 August 2017
(This article belongs to the Special Issue Foods of Animal Origin)
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Abstract

Seasonal variation in conjugated linoleic acid (CLA) content and atherogenicity index (AI) of retail dairy products (whole milk, butter, and prato, a soft yellow cheese) from Brazil was investigated. CLA content of dairy products ranged from 0.55 to 1.53 g CLA/100 g fatty acids and was on average 25% higher during the rainy season compared to the dry season. Dairy products from the rainy season also had lower AI levels, indicating a lower risk of causing cardiovascular disease in consumers. This seasonality led to estimated seasonal variations of milk fat quality consumed by the population of southeastern Brazil, meaning 15% and 19% variation in daily intake of CLA and AI values, respectively. Dietary consumption of CLA (g/day) was greater in the rainy season, despite higher intake of dairy products during the dry season. We show that dairy products produced during the rainy season in Brazil are expected to be more beneficial to human health than are those produced during the dry season. View Full-Text
Keywords: conjugated linoleic acid; atherogenicity index; cow’s milk fat; fatty acid composition; seasonality conjugated linoleic acid; atherogenicity index; cow’s milk fat; fatty acid composition; seasonality
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Nunes, J.C.; Silva, M.N.L.R.; Perrone, D.; Torres, A.G. Seasonal Variation in Fat Quality and Conjugated Linoleic Acid Content of Dairy Products from the Tropics: Evidence of Potential Impact on Human Health. Foods 2017, 6, 61.

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