Objectives:
Several epidemiological studies have suggested that flavonoid intake is associated with a decreased risk of cardiometabolic disease. However, the results remained inconsistent and there is no dose-response meta-analysis for specific outcomes. Therefore, this review article has been conducted.
Is there a dose-response relationship between dietary flavonoid intake and reduced risk of cardiometabolic disease?
Study design:
This review article included 47 prospective cohort studies with a total of 1,346,676 participants and 127,507 persons with cardiometabolic disease.
Results and conclusions:
The investigators found for every 500 mg/d increase in dietary flavonoid intake a reduced risk of 7% [summary RR = 0.93, 95% CI = 0.88 to 0.98] for cardiovascular disease.
Significant means that there is an association with a 95% confidence.
The investigators found for every 500 mg/d increase in dietary flavonoid intake a reduced risk of 11% [summary RR = 0.89, 95% CI = 0.84 to 0.94] for diabetes.
Significant because summary RR of 1 was not found in the 95% CI of 0.84 to 0.94. Summary RR of 1 means no risk/association.
The investigators found for every 500 mg/d increase in dietary flavonoid intake a reduced risk of 3% [summary RR = 0.97, 95% CI = 0.94 to 0.99] for hypertension.
Significantly means it can be said with a 95% confidence that every 500 mg/d increase in dietary flavonoid intake really reduced risk of hypertension with 3%.
The investigators found a linearity dose-response association between total dietary flavonoid intake and cardiovascular disease [p nonlinearity = 0.541] and diabetes [p nonlinearity = 0.077].
The investigators concluded that a higher level of dietary flavonoid intake, at least 500 mg/d is beneficial for the prevention of cardiometabolic diseases, particularly cardiovascular disease, diabetes and hypertension.
Original title:
Total dietary flavonoid intake and risk of cardiometabolic diseases: A dose-response meta-analysis of prospective cohort studies by Li T, Zhao Y, […], Liu J.
Link:
https://pubmed.ncbi.nlm.nih.gov/36148848/
Additional information of El Mondo:
Find more information/studies on flavonoid, diabetes, cardiovascular disease and lowering blood pressure right here.
Cardiometabolic diseases are a group of common but often preventable conditions including heart attack, stroke, diabetes, insulin resistance and non-alcoholic fatty liver disease.