Objectives:
The association between dietary carbohydrate intake and colorectal cancer risk remains controversial. Therefore, this review article (meta-analysis) has been conducted.
Does higher dietary carbohydrate intake increase colorectal cancer risk?
Objectives:
Red meat intake has been associated with risk of colorectal cancer, potentially mediated through heterocyclic amines. The metabolic efficiency of N-acetyltransferase 2 (NAT2) required for the metabolic activation of such amines is influenced by genetic variation. The interaction between red meat intake, NAT2 genotype and colorectal cancer has been inconsistently reported. Therefore, this review article has been conducted.
Is there an interaction between red meat intake, NAT2 genotype and colorectal cancer?
Objectives:
Is there an association of intake of different vitamins and multiple-vitamin supplements and the incidence of colorectal cancer?
Study design:
This review article included 47 articles (cohort studies).
There was unacceptable heterogeneity for studies of multiple-vitamin supplements, so findings were inconclusive.
Objectives:
Epidemiological studies assessing the relationship between dietary vitamin B2 and the risk of breast cancer have produced inconsistent results. Therefore, this review article (meta-analysis) has been conducted.
Does dietary vitamin B2 intake reduce breast cancer risk?
Study design:
This review article included 10 epidemiologic studies (cohort or patient-controle studies) comprising totally 12,268 breast cancer patients.
No publication bias was found.
Objectives:
Is there an association between meat intake and risk of esophageal cancer?
Study design:
This review article included 7 cohort studies and 28 case-control studies.
Results and conclusions:
The investigators found for the highest versus lowest total meat consumption categories a non-significant increased risk of 19% [95% CI = 0.98-1.46] for esophageal cancer.
Objectives:
The association between meat consumption and the risk of hepatocellular carcinoma (HCC) is still inconclusive. Therefore, this review article has been conducted.
Does meat consumption increase risk of hepatocellular carcinoma?
Study design:
This review article included 7 cohort studies and 10 case-control studies.
Objectives:
Quantification of the association between the intake of fruit and vegetables and risk of esophageal squamous cell carcinoma (ESCC) is controversial even though several studies have explored this association. Therefore, this review article (meta-analysis) has been conducted.
Does a high intake of vegetables and fruit decrease risk of esophageal squamous cell carcinoma?
Study design:
This review article included a total of 32 observational studies involving 10037 cases of esophageal squamous cell carcinoma.
Objectives:
There are conflicting reports on the correlation between manganese (Mn) levels and breast cancer. Therefore, this review article (meta-analysis) has been conducted.
Does manganese deficiency increase risk of breast cancer?
Objectives:
Prostate cancer (PCa) is the fifth leading cause of cancer-related deaths worldwide. Many epidemiological studies have investigated the association between prostate cancer and lycopene, however, results have been inconsistent. Therefore, this review article (meta-analysis) has been conducted.
Does lycopene reduce prostate cancer risk?
Study design:
This review article included 42 studies including 43,851 cases of prostate cancer reported from 692,012 participants.
Nutritional Advice El Mondo