A new study by the University of Warwick and the University of Queensland found that people who ate more fruit and vegetables experienced substantial increases in happiness over a two-year period, even when other factors were accounted for. Researchers examined the food diaries of 12,385 randomly sampled Australian adults during the years 2007, 2009, and 2013 to measure their happiness level and concluded that people who transitioned from eating few fruit and vegetables to eight servings per day felt increases in life satisfaction comparable to getting a job after being unemployed. The research team suggests that their findings could potentially support other scientific studies linking optimism with carotenoid in the blood.
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