Walnuts Improve Artery Flexibility

The Physicians Committee

Walnuts Improve Artery Flexibility

October 17, 2006

A new study from the American Journal of Cardiology shows that adding walnuts (a healthy plant source of omega-3 fatty acid) to a high-fat meal reduces negative changes in arteries. Researchers from Barcelona's Hospital Clinical compared how arteries are affected by five teaspoons of olive oil versus eight walnuts when added to a fatty meal. While both walnuts and olive oil decreased inflammation, walnuts increased the elasticity and flexibility of the arteries (called flow-mediated dilation, or FMD) by 24 percent for those with high cholesterol, and FMD was unchanged in the healthy control group. In comparison, those who consumed olive oil showed a 36 percent and 17 percent decrease in FMD for high-cholesterol and control participants, respectively.

Cortes B, Nunez I, Cofan M, et al. Acute Effects of High-Fat Meals Enriched With Walnuts or Olive Oil on Postprandial Endothelial Function. J Am Coll Cardiol. 2006;48:1666-1671.

Subscribe to the Physicians Committee's Breaking Medical News.

Breaking Medical News is a service of the Physicians Committee for Responsible Medicine, 5100 Wisconsin Ave., Ste. 400, Washington, DC 20016, 202-686-2210. Join the Physicians Committee and receive the quarterly magazine, Good Medicine.

Breaking Medical News Topics:
cancer (153)
diabetes (116)
vegetable (81)
vegan (78)
obesity (71)
fruit (69)
Breaking Medical News Archive:
2018 (50)
2017 (69)
2016 (82)
2015 (80)
2014 (71)
2013 (67)
2012 (33)
2011 (16)
2010 (36)
2009 (27)
2008 (21)
2007 (18)
2006 (21)
2005 (13)
2004 (8)
2003 (11)
2002 (9)


Meet PCRM's Nutrition Experts