Fruits and Vegetables: Seven-A-Day for Happiness and Mental Health

http://www.sciencedaily.com/releases/2012/10/121009102003.htm

ScienceDaily (Oct. 9, 2012) — Happiness and mental health are highest among people who eat seven portions of fruit and vegetables a day, according to a new report.

Economists and public health researchers from the University of Warwick studied the eating habits of 80,000 people in Britain. They found mental wellbeing appeared to rise with the number of daily portions of fruit and vegetables people consumed. Wellbeing peaked at seven portions a day.

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The study does not distinguish among different kinds of fruits and vegetables and it defines a portion as approximately 80 grams.

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80 grams = 2.8 ounces,
so 7 portions would be 560 grams = 19.8 ounces (oz) = 1 pound (lb) 3.7 oz