Objectives:
The relationship between vitamin intake and pancreatic cancer (PC) risk is disputed. Therefore, this review article has been conducted.
Is there a relationship between dietary vitamin intake and pancreatic cancer risk?
Study design:
This review article included 25 observational studies with a total of 1,214,995 individuals, of which 8,000 pancreatic cancer cases.
In the identified studies, 10 were population-based case-control studies, 4 were hospital-based case-control studies, 2 were RCTs, 9 were cohort studies, 11 were prospective studies and 14 were retrospective studies.
The number of participants ranged from 305 to 537,218 and pancreatic cancer cases ranged from 79 to 2,383.
Quality scores of included case-control and cohort studies ranged from 7 to 9 with an average score of about 8.
Results and conclusions:
The investigators found in prospective cohort studies a significantly reduced risk of 10% [multivariable-adjusted RR = 0.90, 95% CI = 0.83-0.98, I2 = 11%] for pancreatic cancer when comparing the highest dietary vitamin intake with the lowest, particularly for 10 μg/d dietary intake of vitamin D [multivariable-adjusted RR = 0.75, 95% BI = 0.60-0.93, I2 = 59%].
The investigators concluded that a high dietary vitamin intake decreases the risk of pancreatic cancer, particularly for 10 μg/d dietary intake of vitamin D.
Original title:
Vitamin intake and pancreatic cancer risk reduction: A meta-analysis of observational studies by Liu Y, Wang X, [...], Liu S.
Link:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5895396/
Additional information of El Mondo:
Find more information/studies on vitamin D and cancer right here.
A review article (a collection of scientific studies on a specific topic) of cohort studies or case-control studies will answer the following question:
"Should I change my diet?".