-3 index, the erythrocyte proportion of the EPA + DHA fatty acids is a clinical marker of age-related disease risk. It is unclear whether regular intake of -linolenic acid (ALA), a plant-derived -3 polyunsaturated fatty acid, raises -3 index in older adults. Of the 356 participants at the Loma Linda, CA centre from the original study, a randomly selected subset ( 192) was included for this secondary analysis (mostly Caucasian women, mean age 69 years).
View Article and Find Full Text PDFAccumulating evidence links nut consumption with an improved risk of metabolic syndrome (MetS); however, long-term trials are lacking. We examined the effects of a daily dose of walnuts for two years on MetS in a large elderly cohort. A total of 698 healthy elderly participants were randomly assigned to either a walnut supplemented or a control diet.
View Article and Find Full Text PDFBackground: Walnut consumption counteracts oxidative stress and inflammation, 2 drivers of cognitive decline. Clinical data concerning effects on cognition are lacking.
Objectives: The Walnuts And Healthy Aging study is a 2-center (Barcelona, Spain; Loma Linda, CA) randomized controlled trial examining the cognitive effects of a 2-y walnut intervention in cognitively healthy elders.
: To assess the effects of chronic walnut consumption on body weight and adiposity in elderly individuals. : The Walnuts and Healthy Aging study is a dual-center (Barcelona, Spain and Loma Linda University (LLU)), 2-year randomized parallel trial. This report concerns only the LLU cohort.
View Article and Find Full Text PDFThere is compelling evidence showing that nut intake confers protection against cardiovascular disease (CVD). We conducted a review of the literature with respect to observational studies and randomized trials completed in the past ≈25 years that examined nut intake and CVD endpoints. We included findings from major cohort studies, a large intervention trial, and numerous smaller nut trials.
View Article and Find Full Text PDFOlder adults tend to require fewer energy content and higher levels of nutrients to promote and maintain optimal health. Regrettably, dietary variety and quality are known to decline with advancing age. We conducted a 2-year prospective, randomised, dietary intervention trial where we asked free-living elderly subjects (63-79 years) on self-selected habitual diets to incorporate walnuts daily into their diet (15 % energy).
View Article and Find Full Text PDFAn unwanted consequence of population aging is the growing number of elderly at risk of neurodegenerative disorders, including dementia and macular degeneration. As nutritional and behavioral changes can delay disease progression, we designed the Walnuts and Healthy Aging (WAHA) study, a two-center, randomized, 2-year clinical trial conducted in free-living, cognitively healthy elderly men and women. Our interest in exploring the role of walnuts in maintaining cognitive and retinal health is based on extensive evidence supporting their cardio-protective and vascular health effects, which are linked to bioactive components, such as n-3 fatty acids and polyphenols.
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