People who ate a daily half-serving of nuts (about a handful) instead of the same amount of refined grains, red meat, or dessert gained less weight over a 24-year study period than those who ate nuts less frequently, according to a new study led by researchers from Harvard T.H. Chan School of Public Health. Overall, study participants gained an average of 0.32kg (0.7lbs) each year. Those who ate more nuts gained around 0.4kg (0.88lbs) less over each four-year interval of the study.

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