The study was carried out with 6,504 randomly selected Iranian individuals, all over the age of 35. The data was collected through a validated food frequency questionnaire and the occurrence of cardiovascular events and all-cause mortality was identified with biannual interviews with the subjects or their next of kin.
During the follow up after 135 months, the researchers identified 751 cases of cardiovascular events. They found that participants who were in the highest quartile of nut consumption had a lower cardiovascular disease risk and all-cause mortality. In conclusion, the consumption of nuts may have an inverse association with the risk of cardiovascular disease among individuals from Iran. The authors suggest more studies should be carried out to analyze individual types of nuts and how they related to cardiovascular disease risk and mortality.
Mohammadifard, N., Ghaderian, N., Sajjadi, F., Hassannejhad, R., Salas-Salvado, J., Sadeghi, M., … & Sarrafzadegan, N. (2020). Longitudinal association of nut consumption and the risk of cardiovascular events: a prospective cohort study in Eastern Mediterranean Region. Frontiers in Nutrition, 7, 315.