Walnuts Lowered LDL Cholesterol in Seniors

Emilio Ros, MD, PhD led the Walnuts and Healthy Aging Study (WAHA) looking at healthy seniors in Loma Linda, California and Barcelona, Spain. He followed 636 patients who were randomly assigned to a walnut supplemented diet or walnut free diet.

Senior Citizens who ate a diet supplemented with walnuts lowered their LDL cholesterol significantly.  The walnut supplemented group exhibited a reduction of total cholesterol of 8.5 mg/dl with an LDL cholesterol reduction of 4.3 mg/dl.  Triglycerides and HDL cholesterol were not affected. In addition to lowering cholesterol, Dr. Ros said other studies showed a positive result in lowering blood pressure. 

Christie Ballantyne MD, chief of cardiology at Baylor College of Medicine, and director of cardiovascular disease prevention at Methodist DeBakey Heart Center, said nutritional studies are difficult to complete. The number of participants is usually small and the length of the study short. This study encompassed large numbers over two years in two different locales. 

Dr. Ros commented that adults are always wondering what can they eat as a healthy snack?  Walnuts can now be added to that list.