The authors used a meta-analysis approach to gather and examine the current literature. Furthermore, they found that no previous meta-analyses used the dose-response association for risk of specific cancers as well as the associations between specific types of nuts and cancer mortality.
Using an online database, they found a total of 43 articles on cancer and 9 articles on cancer mortality. After examining the identified articles, they found that summary effect size (ES) for risk of cancer and the ES for the tree nut intake was significantly inverse. Moreover, looking closer at the dose-response analysis, they concluded that a 5 gram a day increase in consumption of total nut intake was associated with a 3%, 6%, and 25% lower risks of overall, pancreatic, and colon cancers. Concerning cancer mortality, they found 13%, 18%, and 8% risk reductions with higher levels of total nut, tree nut, and peanut consumption. In addition, increasing 5 grams a day of total nut consumption was also associated with a 4% decrease in risk of cancer mortality.
Naghshi, S., Sadeghian, M., Nasiri, M., Mobarak, S., Asadi, M., & Sadeghi, O. (2020). Association of Total Nut, Tree Nut, Peanut, and Peanut Butter Consumption with Cancer Incidence and Mortality: A Comprehensive Systematic Review and Dose-Response Meta-Analysis of Observational Studies. Advances in Nutrition.
Using an online database, they found a total of 43 articles on cancer and 9 articles on cancer mortality. After examining the identified articles, they found that summary effect size (ES) for risk of cancer and the ES for the tree nut intake was significantly inverse. Moreover, looking closer at the dose-response analysis, they concluded that a 5 gram a day increase in consumption of total nut intake was associated with a 3%, 6%, and 25% lower risks of overall, pancreatic, and colon cancers. Concerning cancer mortality, they found 13%, 18%, and 8% risk reductions with higher levels of total nut, tree nut, and peanut consumption. In addition, increasing 5 grams a day of total nut consumption was also associated with a 4% decrease in risk of cancer mortality.
Naghshi, S., Sadeghian, M., Nasiri, M., Mobarak, S., Asadi, M., & Sadeghi, O. (2020). Association of Total Nut, Tree Nut, Peanut, and Peanut Butter Consumption with Cancer Incidence and Mortality: A Comprehensive Systematic Review and Dose-Response Meta-Analysis of Observational Studies. Advances in Nutrition.