Vitamin C supplement intake and postmenopausal breast cancer risk: interaction with dietary vitamin C

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Vitamin C supplement intake and postmenopausal breast cancer risk: interaction with dietary vitamin C.

BACKGROUND Experimental and epidemiologic studies have yielded conflicting results on the relation between vitamin C intake and breast cancer risk. OBJECTIVE We investigated the relation between vitamin C supplement intake and breast cancer risk while considering dietary vitamin C intake. DESIGN Between 1995 and 2008, 2482 invasive breast cancer cases occurred in 57,403 postmenopausal women...

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Inverse Association between Dietary Intake of Selected Carotenoids and Vitamin C and Risk of Lung Cancer

While diets rich in fruit and vegetables appear to reduce lung cancer risk, the evidence for individual carotenoid and vitamin intakes has been judged too limited to reach firm conclusions. Data from a case-control study of lung cancer (Montreal, QC, Canada, 1996-2002) were used to investigate the role of dietary intakes of β-carotene, α-carotene, β-cryptoxanthin, lutein/zeaxanthin, lycopene, a...

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Association between dietary vitamin C intake and risk of esophageal cancer: A dose-response meta-analysis.

While several epidemiological studies have investigated the association between vitamin C and risk of esophageal cancer, the results remain inconsistent. In the present study, a meta-analysis was conducted to assess the impact of dietary vitamin C intake on esophageal cancer risk. Online databases were searched up to March 29, 2015, for studies on the association between dietary vitamin C intak...

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Vitamin C Intake, Circulating Vitamin C and Risk of Stroke: A Meta‐Analysis of Prospective Studies

BACKGROUND Though vitamin C supplementation has shown no observed effects on stroke prevention in several clinical trials, uncertainty remains as to whether long-term, low-dose intake influences the development of stroke among general populations. Furthermore, the association between circulating vitamin C and the risk of stroke is also unclear. For further clarification of these issues, we cond...

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ژورنال

عنوان ژورنال: The American Journal of Clinical Nutrition

سال: 2016

ISSN: 0002-9165,1938-3207

DOI: 10.3945/ajcn.115.126326