Virtually No US Adults Have an Omega 3 Status Recommended for Cardiovascular Health

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22 Dec 2015 --- DSM Nutritional Products has co-authored a new paper comparing plasma long-chain omega-3 polyunsaturated fatty acid (LCn-3 PUFA) biomarkers in US adults, with recommended concentration levels for cardiovascular health. Published in Nutrients, it reveals overwhelming evidence of suboptimal LCn-3 concentrations across all age groups and highlights the need to increase dietary intake.

Using data from the National Health and Nutrition Examination Survey (NHANES) 2003-2004, this cross sectional study is one of the first to analyze plasma LCn-3 PUFA status from dietary biomarkers in a nationally representative population of American adults. Of the 1,386 subjects, 80.6% had LCn-3 concentrations below dietary guidelines for heart health and nearly all (95.7%) did not achieve levels associated with cardio-protection; this was particularly evident among Hispanic participants of all ages. 

Clinical and observational studies demonstrate that LCn-3 has a positive role to play in heart health. Fatty fish, such as salmon, mackerel and sardines, is a particularly rich source and both the Dietary Guidelines Advisory Committee and the American Heart Association recommend two servings of seafood per week. However, less than 10% of the US population is believed to achieve this target.

“Large population studies designed to evaluate consumption against these guidelines have traditionally relied on self-completed diaries, recall or questionnaires – all of which are open to error. So by analyzing circulation concentrations recorded as part of NHANES, our research provides a much more accurate characterization of LCn-3 PUFA status among American men and women,” explains Dr. Michael McBurney, Vice President, Science, Communications and Advocacy at DSM.

Blood was drawn from adults aged 20 and above after a fast of eight hours or more. Plasma samples were stored at -70°C and gas chromatography-mass spectrometry used to measure 24 plasma fatty acids. The concentration of LCn-3 PUFAs was determined by the standardized methodology outlined in previously published papers for consistency and comparison. Results were reported for the total sample population and stratified by three age groups corresponding to approximate life stages (young adult, middle age and older age) as well as ethnicity (self-identified).

“The results of this study offer a valuable point of reference for previous and future studies investigating the benefits of dietary omega-3 fatty acids on cardiovascular health,” confirms Dr. Manfred Eggersdorfer, Senior Vice President Nutrition Science & Advocacy at DSM and Professor for Healthy Ageing at University Medical Center Groningen. Little has changed since this round of NHANES was carried out; dietary intake of fish has remained consistently low in the US over the last two decades. Only 7.8% of adults reported taking fish oil supplements in 2012, which is likely to be too low to have a population impact on LCn-3 PUFA status. 

“The overall finding that suboptimal LCn-3 concentrations are prevalent across all demographic groups in the sample population suggests the need to elucidate clinical implications, including for cardiovascular disease,” adds Dr Saurabh Mehta, Assistant Professor, Division of Nutritional Sciences, Cornell University, New York and contributing author.

To contact our editorial team please email us at editorial@cnsmedia.com

DSM Nutritional Products

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DSM is a leading global supplier of nutritional and speciality ingredients to food, beverage and dietary supplement manufacturers. The company creates, manufactures and markets innovative products and services, which are used in a wide range of nutritional and nutraceutical applications. Through its  Quali® -Blends premix service, DSM offers market insights and expertise, providing high-quality, tailored premix solutions for a wide range of applications and target sectors. The Quality for Life™ seal aims to ensure the quality of DSM’s ingredients, and responds to growing demand for reliable and traceable products which meet today’s stringent safety and sustainability requirements.
 

DSM has a broad porfolio of ingredients and concept solutions on a global level, focusing on the production and commercialization of vitamins, minerals and micronutrients that enhance the health profile of products. These include a range of health benefit solutions: eye health, bone health, essentials for women, essentials for men, essentials for kids & teens, essential for vegetarians, energize your mind, relax your mind, empower your mind, heart health, beauty from within, weight management, sports nutrition, joint health, immunity, essential nutrition and healthy aging. DSM’s range of products delivers proven efficacy and is backed by solid research and technical understanding.

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