Cancer

Objectives:
Previous studies had been published to explore the association about carbohydrate intake on esophageal cancer risk, with inconsistent results. Therefore, this review article (meta-analysis) has been conducted.

Objectives:
Epidemiologic studies of the relationship between nitrite or nitrate consumption and risk of non-Hodgkin lymphoma (NHL) remain controversial. Therefore, this review article has been conducted.

Objectives:
Previous studies have demonstrated some associations between dietary vitamin A intake and ovarian cancer risk with an inconsistent relationship. Therefore, this review article (meta-analysis) has been conducted.

Does higher dietary intake of vitamin A reduce ovarian cancer risk?

Study design:
This review article included 10 case-control studies and 5 cohort studies, involving 4,882 cases (persons with ovarian cancer) among 443,179 participants.

Objectives:
The impact of light-intensity physical activity (LPA) in preventing cancer mortality has been questioned. Therefore, this review article has been conducted.

Does light-intensity physical activity reduce cancer mortality?

Objectives:
Epidemiologic studies focusing on the association between 1-carbon metabolism-related vitamins (ie, folate, vitamin B6, vitamin B2, vitamin B12) and breast cancer risk have reported inconsistent findings. Therefore, this review article (meta-analysis) has been conducted.

Objectives:
An increased risk of gastric cancer for pickled vegetable and salted fish intake has been suggested, yet the lack of a dose-response association warrants a quantitative analysis. Therefore, this review article (meta-analysis) has been conducted.

Do pickled vegetable and salted fish intakes increase risk of gastric cancer?

Study design:
This review article included 21 cohort studies with a total of 195,624 participants for the analysis of pickled vegetable intake and 16 cohort studies with a total of

Objectives:
A growing number of epidemiological studies have suggested a possible association between long-chain omega-3 polyunsaturated fatty acid (PUFA) intake and the risk of cancers, but the results have been inconsistent. Therefore, this review article (meta-analysis) has been conducted.

Objectives:
Some evidence indicates that carotenoids may reduce the risk of bladder cancer (BC), but the association is unclear. Therefore, this review article (meta-analysis) has been conducted.

Objectives:
It is unclear how dietary intake influences the ovarian cancer. Therefore, this review article (meta-analysis) has been conducted.

Is there a relationship between dietary intake of different nutrients/food groups and ovarian cancer risk?

Study design:
This review article included 97 cohort studies.

Results and conclusions:
The investigators found no significant association between dietary intake and risk of ovarian cancer.

Objectives:
The number of cancer survivors is growing rapidly worldwide, especially long-term survivors. Although a healthy diet with a high vegetable and fruit consumption is a key factor in primary cancer prevention, there is a lack of specific dietary recommendations for cancer survivors, except in the case of breast cancer [World Cancer Research Fund (WCRF)/American Institute for Cancer Research (AICR) report]. Therefore, this review article (meta-analysis) has been conducted.