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New study indicates avocado consumption may be associated with better diet quality

Positive health indicators also associated with avocado consumption

IRVINE, Calif. (February 20, 2013) & New analysis of data from the National Health and Nutrition Examination Survey (NHANES) , a program of the Centers for Disease Control and Prevention (CDC), indicates that consuming avocados may be associated with better diet quality and nutrient intake level, lower intake of added sugars, lower body weight, BMI and waist circumferences, higher "good cholesterol" levels and lower metabolic syndrome risk. These results were published in the January 2013 issue of Nutrition Journal.

Specifically, the survey data (NHANES 2001-2008, 17,567 U.S. adults ages 19 years and older) revealed that the 347 adults (50% female) who consumed avocados in any amount during a 24-hour dietary recording period had several significantly better nutrient intake levels and more positive health indicators than those who did not consume avocados. Among the avocado consumers, average daily consumption was about one half (70.1 /- 5.4 g/day) of a medium sized avocado, somewhat higher in male avocado consumers (75.3 /-6.3 g/day) than females (66.7 /- 7.3 g/day).

Overall Diet Quality, Energy and Nutrient Intakes

  • According to the study, Avocado consumers more closely adhered to the Dietary Guidelines for Americans than those who did not eat avocados, as measured by the Healthy Eating Index (HEI).
  • Avocado consumers had significantly higher intakes of certain important nutrients including 36% more dietary fiber, 23% more vitamin E, 13% more magnesium, 16% more potassium and 48% more vitamin K than non-consumers.
  • Avocado consumers also had significantly higher intakes of "good" fats (18% more monounsaturated and 12% more polyunsaturated) and total fats (11% more) than non-consumers, although average caloric intake of both groups was the same.
  • Avocado consumers and non-consumers had similar intakes of sodium.

Physiological Health Measures 

  • Avocado consumers had significantly lower BMI values than non-consumers.
  • Avocado consumers had significantly smaller waist circumference measures than non-consumers (an average of 4 cm smaller).
  • Avocado consumers weighed significantly less than non-consumers (an average of 7.5 pounds less).
  • Avocado consumers had significantly higher HDL ("good") cholesterol levels.

Metabolic Syndrome Risk

The study found that Avocado consumers had a 50% lower odds ratio for metabolic syndrome compared to non-consumers. Metabolic syndrome is a name given to a group of risk factors which, when they occur together, increase the risk for coronary artery disease, stroke and type-2 diabetes.

As with most analyses of NHANES data, research findings were based on cross-sectional data from a single 24-hour dietary recall (which may be inaccurate and biased due to misreporting and memory lapses) and cannot provide cause and effect evidence between avocado consumption and improvements in diet quality. "These findings suggest an interesting association between the consumption of avocados and better nutrient intakes and other positive outcomes," said study primary investigator Victor Fulgoni, PhD. "These observations were derived from population survey data, they provide important clues to better understanding the relationships between diet and health, and give direction to future research endeavors."

"To this end, the Hass Avocado Board is funding additional clinical studies to investigate the relationship between fresh avocado consumption and risk factors for cardiovascular disease, avocados' potential positive role in weight management and diabetes, and avocados' ability to enhance nutrient absorption," said Hass Avocado Board Executive Director Emiliano Escobedo.

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For a free copy of the abstract or the full study visit: http://www.nutritionj.com/content/12/1/1

For additional information or free resources on avocado research, recipes, tips and photos visit the Hass Avocado Board web site at AvocadoCentral.com.

About the Hass Avocado Board

The Hass Avocado Board was established in 2002 to promote the consumption of Hass avocados in the United States. A 12-member board representing domestic producers and importers of Hass avocados directs HAB's promotion, research and information programs under supervision of the United States Department of Agriculture. Hass avocados are grown in California and imported into the US from Mexico, Chile, Peru, Dominican Republic and New Zealand.

Centers for Disease Control and Prevention. About the National Health and Nutrition Examination Survey. Available at: http://www.cdc.gov/nchs/nhanes/about_nhanes.htm. Accessed on January 31, 2013.

Fulgoni VL, Dreher M and Davenport A. Avocado Consumption is Associated with Better Diet Quality and Nutrient Intake, and Lower Metabolic Syndrome Risk in US Adults: Results from the National Health and Nutrition Examination Survey (NHANES) 2001-2008. Nutrition Journal. 2013; 12:1 (2 January 2013)

United States Department of Agriculture. Healthy Eating Index. Available at: http://www.cnpp.usda.gov/healthyeatingindex.htm. Accessed on January 30, 2013.

National Heart Blood and Lung Institute. What is Metabolic Syndrome? Available at: http://www.nhlbi.nih.gov/health/health-topics/topics/ms/. Accessed on January 30, 2013.

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Pests and diseases from offshore can cause serious harm to New Zealand's unique environment and primary industries; and the Port of Tauranga is one of many potential gateways.Biosecurity Week activities highlight the importance of biosecurity and the role that everyone in the Bay of Plenty can play in managing unwanted biosecurity risks says Kiwifruit Vine Health Chief Executive Barry O’Neil.“We’re looking forward to talking to people who work on and around the Port about biosecurity – it’s such an important issue and one that really does affect everyone.”“People who own and work at local businesses remember what Psa has done to the kiwifruit industry. There are bugs and pests that we don’t want here in New Zealand because of the devastating effect they will have not only on kiwifruit, but on the whole of our horticulture industry and environment.”“A good example is a particular type of bug we’re concerned about – it’s one of our most unwanted and called the Brown Marmorated Stink Bug. It’s a major nuisance that attacks fruit when it feeds and ruins it. It infests homes and in the USA we’ve seen it stop people from being able to sit outside their homes and have a simple BBQ”.Port staff, transitional facilities, associated industries (such as transporters and other logistical operators), and biosecurity experts will be meeting at several events over the next six days to raise awareness and understanding of the importance of managing biosecurity risk.Special guest Ruud 'The Bug Man' Kleinpaste will also be attending several industry and community school group presentations during the week to discuss the vital role of everyone who works and lives in and around the Port and local community in keeping unwanted pests and diseases out of New Zealand.Throughout the week there will also be discussions with post-harvest facilities and transitional facilities to learn more about the frontline biosecurity systems they have in place. Biosecurity Week is part of the biosecurity excellence partnership between Port of Tauranga, the Ministry for Primary Industries, Kiwifruit Vine Health, NZ Avocado, Dairy NZ, Forestry Owners Association, NZ Customs and Bay of Plenty Regional Council.The award-winning partnership aims to build a port community committed to biosecurity excellence, with an ambitious goal of no biosecurity incursions coming through the Port of Tauranga. It is a successful regional example of the Ministry for Primary Industries, local industries and regional government, partnering to build a biosecurity team of 4.7 million New Zealanders.It also benefits from strong engagement with the science community, including a formal partnership with the New Zealand’s Biological Heritage national science challenge and the B3 (Better Border Biosecurity) science collaboration. This has been boosted by a $1.95 million co-funded research project with B3 to trial new tools and technologies in the port environment, monitor biosecurity awareness amongst the local community, and measure the impacts of changes on biosecurity risk.Port of Tauranga Chief Executive Mark Cairns said the week provides a good opportunity to strengthen the significance of biosecurity within the Port community. “Effective biosecurity awareness is critical to us running a successful business and being able to continue to service the Bay of Plenty region. The various events we’re holding for our staff, contractors and local businesses who regularly interact with us and our facilities will give us the chance to show people what they should be looking out for and what to do if they find anything.”“It’s an opportunity to demonstrate the good work that happens here at the Port, day in day out, to keep an eye out.”“Our people are at the frontline – they’re the ones most likely to first notice an unwanted pest on cargo, vehicles or equipment moving off the port. By knowing what to look for and reporting unfamiliar insects or suspicious looking pests they help protect everyone’s livelihood and the future of the kiwifruit, avocado and forestry sectors.”

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