Sharp Brains: Brain Fitness and Cognitive Health News

Neuroplasticity, Brain Fitness and Cognitive Health News

Icon

Study: To improve memory and thinking skills, try the Mediterranean diet with added olive oil and nuts

Mediterranean-Diet

.

Mediter­ranean diet may help coun­ter­act age-relat­ed declines in mem­o­ry and think­ing skills (Har­vard Health Blog):

A new study in this week’s JAMA Inter­nal Med­i­cine sug­gests that eat­ing a Mediter­ranean-style diet enhanced with extra-vir­gin olive oil or nuts is good for your mind as well as your heart.

The par­tic­i­pants were most­ly in their 60s and 70s and were at risk for devel­op­ing heart disease…They were divid­ed into three groups: one fol­lowed a Mediter­ranean-type diet and also ate an extra ounce of mixed nuts (wal­nuts, hazel­nuts, and almonds) a day; anoth­er fol­lowed a Mediter­ranean-type diet and also ate an extra five table­spoons of extra-vir­gin olive oil a day; the third group, which served as the con­trol, fol­lowed a low-fat diet.

In the con­trol group, aver­age scores on both types of tests — mem­o­ry and think­ing skills — fell dur­ing those four years. By com­par­i­son, aver­age scores on the mem­o­ry tests improved among those fol­low­ing the Mediter­ranean-type diet with extra serv­ings of nuts, while scores on the tests of think­ing skills improved among those fol­low­ing the Mediter­ranean diet with extra serv­ings of olive oil.”

Study: Mediter­ranean Diet and Age-Relat­ed Cog­ni­tive Decline: A Ran­dom­ized Clin­i­cal Tri­al (JAMA Inter­nal Med­i­cine)

  • IMPORTANCE: Oxida­tive stress and vas­cu­lar impair­ment are believed to part­ly medi­ate age-relat­ed cog­ni­tive decline, a strong risk fac­tor for devel­op­ment of demen­tia. Epi­demi­o­log­ic stud­ies sug­gest that a Mediter­ranean diet, an antiox­i­dant-rich car­dio­pro­tec­tive dietary pat­tern, delays cog­ni­tive decline, but clin­i­cal tri­al evi­dence is lack­ing.
  • OBJECTIVE: To inves­ti­gate whether a Mediter­ranean diet sup­ple­ment­ed with antiox­i­dant-rich foods influ­ences cog­ni­tive func­tion com­pared with a con­trol diet.
  • INTERVENTIONS: Par­tic­i­pants were ran­dom­ly assigned to a Mediter­ranean diet sup­ple­ment­ed with extravir­gin olive oil (1 L/wk), a Mediter­ranean diet sup­ple­ment­ed with mixed nuts (30 g/d), or a con­trol diet (advice to reduce dietary fat).
  • MAIN OUTCOMES AND MEASURES: Rates of cog­ni­tive change over time based on a neu­ropsy­cho­log­i­cal test bat­tery: Mini-Men­tal State Exam­i­na­tion, Rey Audi­to­ry Ver­bal Learn­ing Test (RAVLT), Ani­mals Seman­tic Flu­en­cy, Dig­it Span sub­test from the Wech­sler Adult Intel­li­gence Scale, Ver­bal Paired Asso­ciates from the Wech­sler Mem­o­ry Scale, and the Col­or Trail Test.
  • CONCLUSIONS AND RELEVANCE: In an old­er pop­u­la­tion, a Mediter­ranean diet sup­ple­ment­ed with olive oil or nuts is asso­ci­at­ed with improved cog­ni­tive func­tion.

To learn more:

Leave a Reply...

Loading Facebook Comments ...

Leave a Reply

Categories: Cognitive Neuroscience, Health & Wellness

Tags: , , , , , , , , , , , ,

Watch All Recordings Now (40+ Speakers, 12+ Hours)

About SharpBrains

As seen in The New York Times, The Wall Street Journal, BBC News, CNN, Reuters and more, SharpBrains is an independent market research firm tracking health and performance applications of brain science.

Follow us and Engage via…

twitter_logo_header
RSS Feed

Search for anything brain-related in our article archives