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antioxidant vitamins supplementation and mortality

Antioxidant vitamins supplementation and mortality: a ... There has been concern that long-term supplementation with high-dose antioxidant vitamins, especially vitamin E (alpha-tocopherol), may increase all-cause mortality. We conducted a r

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Antioxidant vitamins supplementation and mortality: a ...

There has been concern that long-term supplementation with high-dose antioxidant vitamins, especially vitamin E (alpha-tocopherol), may increase all-cause mortality. We conducted a randomized controlled trial with alpha-tocopherol (400 IU/day) and beta-carotene (30 mg/day) supplements among 540 head …

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Antioxidant vitamins supplementation and mortality: A ...

Recently published metaanalyses of randomized trials testing antioxidant vitamins and minerals supplementation have provided evidence for their lack of efficacy, and raised concern about increased mortality thus questioning the perceived benefits of these supplements. 1, 2, 3 We conducted a multicenter, double-blind, placebo-controlled, randomized chemoprevention trial with α-tocopherol and ...

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Antioxidant vitamins supplementation and mortality: A ...

There has been concern that long‐term supplementation with high‐dose antioxidant vitamins, especially vitamin E (α‐tocopherol), may increase all‐cause mortality. We conducted a randomized controlled trial with α‐tocopherol (400 IU/day) and β‐carotene (30 mg/day) supplements among 540 head and neck cancer patients treated by ...

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Antioxidant vitamins supplementation and mortality: A ...

There has been concern that long‐term supplementation with high‐dose antioxidant vitamins, especially vitamin E (α‐tocopherol), may increase all‐cause mortality. We conducted a randomized controlled trial with α‐tocopherol (400 IU/day) and β‐carotene (30 mg/day) supplements among 540 head and neck cancer patients treated by radiation therapy.

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Antioxidant vitamins supplementation and mortality: A ...

Antioxidant vitamins supplementation and mortality: A randomized trial in head and neck cancer patients | Gapany, M. | download | BookSC. Download books for free. Find books

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Antioxidant vitamins supplementation and mortality: A ...

However, evidence suggests that high intakes of antioxidant vitamins may be dangerous and thus, vitamin supplementation for cancer survivors is currently under debate [37]. The reduced mortality ...

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(PDF) Antioxidant vitamins supplementation and mortality ...

Antioxidant vitamins supplementation and mortality: A randomized trial in head and neck cancer patients. International Journal of Cancer, 2006. Bernard Tetu. François Meyer. A. Fortin. Bernard Tetu. François Meyer. A. Fortin. Download PDF.

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Antioxidant vitamins supplementation and mortality: a ...

There has been concern that long-term supplementation with high-dose antioxidant vitamins, especially vitamin E (alpha-tocopherol), may increase all-cause mortality. We conducted a randomized controlled trial with alpha-tocopherol (400 IU/day) and beta-carotene (30 mg/day) supplements among 540 head and neck cancer patients treated by radiation ...

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Antioxidant Vitamins and Mortality in Older Persons ...

Antioxidant Vitamins and Mortality in Older Persons: Findings From the Nutrition Add-On Study to the Medical Research Council Trial of Assessment and Management of Older People in the Community Astrid E Fletcher et al. Am J Clin Nutr . 2003 Nov .

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Antioxidant vitamins and mineral supplementation, life ...

The main conclusions of this commentary regarding the effects of antioxidant vitamins on mortality coincide with the meticulous analysis of the Cochrane collaboration study on antioxidant supplementation . This extensive meta-analysis included evidence published up to 2005 and was based upon forty-seven trials with a low risk of systematic bias ...

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Antioxidant vitamins supplementation and mortality: A ...

Antioxidant vitamins supplementation and mortality: A randomized trial in head and neck cancer patients | Gapany, M. | download | BookSC. Download books for free. Find books

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Supplementation and Mortality - Antioxidant ...

All-cause mortality in a sample of the U.S. population National Health and Nutrition Examination Survey (NHANES) I participants, n 10,550 749 deaths was

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Antioxidant vitamins supplementation and mortality: a ...

There has been concern that long-term supplementation with high-dose antioxidant vitamins, especially vitamin E (alpha-tocopherol), may increase all-cause mortality. We conducted a randomized controlled trial with alpha-tocopherol (400 IU/day) and beta-carotene (30 mg/day) supplements among 540 head and neck cancer patients treated by radiation ...

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Multivitamin supplementation may reduce mortality

According to a new German study, supplementation of antioxidant vitamins may reduce cancer mortality and all-cause mortality.

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Antioxidant Supplements and Mortality

LETTERS Antioxidant Supplements and Mortality To the Editor: Based on their meta-analysis of antioxidant supplementation trials, Dr Bjelakovic and colleagues1 con- clude that some of the intervention nutrients appeared to

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Antioxidant vitamins and mineral supplementation, life ...

The majority of supplementation studies indicate no variation of general mortality and of cancer incidence or a detrimental effect on both. Antioxidant supplements so far tested seem to offer no improvement over a well-balanced diet, possibly because of the choice of the substances tested or of an excessive dosage.

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Multivitamin-multimineral supplementation and mortality: a ...

A recently updated Cochrane review examined the association between vitamin supplementation and all-cause mortality (11, 12). However, this review focused solely on antioxidant vitamins as opposed to multivitamins.

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Efficacy of Antioxidant Supplementation in Reducing ...

Ineligible trials used antioxidant supplements with undisclosed components or sought antioxidant supplementation through dietary increases in vegetables, fruits, or fiber. Also, trials reporting only site-specific cancer incidence or only cancer mortality, but not overall cancer incidence, were excluded. L iterature S earch

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Antioxidant Vitamins May Cut Mortality Risk - EPIC Data

by Stephen Daniells. 16 August 2011. from NutraIngredients-USA Website Users of antioxidant vitamin supplements may be at reduced risk of cancer mortality, as well as premature death in general, suggests data from the European Prospective Investigation into Cancer and Nutrition (EPIC.). Antioxidant vitamin supplement use at the start of the study was associated with a 48 percent reduction in ...

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Meta-Regression Analyses, Meta-Analyses, and Trial ...

Background and AimsEvidence shows that antioxidant supplements may increase mortality. Our aims were to assess whether different doses of beta-carotene, vitamin A, and vitamin E affect mortality in primary and secondary prevention randomized clinical trials with low risk of bias. MethodsThe present study is based on our 2012 Cochrane systematic review analyzing beneficial and harmful effects ...

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Antioxidant vitamins supplementation and mortality: A ...

Antioxidant vitamins supplementation and mortality: A randomized trial in head and neck cancer patients | Gapany, M. | download | BookSC. Download books for free. Find books

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Supplementation and Mortality - Antioxidant ...

All-cause mortality in a sample of the U.S. population National Health and Nutrition Examination Survey (NHANES) I participants, n 10,550 749 deaths was

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Antioxidant vitamins supplementation and mortality: a ...

There has been concern that long-term supplementation with high-dose antioxidant vitamins, especially vitamin E (alpha-tocopherol), may increase all-cause mortality. We conducted a randomized controlled trial with alpha-tocopherol (400 IU/day) and beta-carotene (30 mg/day) supplements among 540 head and neck cancer patients treated by radiation ...

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Multivitamin supplementation may reduce mortality

According to a new German study, supplementation of antioxidant vitamins may reduce cancer mortality and all-cause mortality.

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Antioxidant Supplements and Mortality

LETTERS Antioxidant Supplements and Mortality To the Editor: Based on their meta-analysis of antioxidant supplementation trials, Dr Bjelakovic and colleagues1 con- clude that some of the intervention nutrients appeared to

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Antioxidant supplements for prevention of mortality in ...

We found no evidence to support antioxidant supplements for primary or secondary prevention. Beta-carotene and vitamin E seem to increase mortality, and so may higher doses of vitamin A. Antioxidant supplements need to be considered as medicinal products and should undergo sufficient evaluation before marketing.

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Antioxidant Supplements Do Not Improve Mortality and May ...

Vitamin C and selenium supplementation had no significant effect on mortality. In randomized controlled trials of primary and secondary prevention, vitamins A and E, and beta-carotene ...

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Antioxidant vitamins and mineral supplementation, life ...

Antioxidant vitamins and mineral supplementation, life span expansion and cancer incidence: a critical commentary. ... Effects of selected antioxidants on mortality and cancer incidence. β-carotene and α-tocopherol, alone or in combination, increase cardiovascular and all-cause mortality or have no effect. ... Total and cancer mortality after ...

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Multivitamin-multimineral supplementation and mortality: a ...

A recently updated Cochrane review examined the association between vitamin supplementation and all-cause mortality (11, 12). However, this review focused solely on antioxidant vitamins as opposed to multivitamins.

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Meta-Regression Analyses, Meta-Analyses, and Trial ...

Background and AimsEvidence shows that antioxidant supplements may increase mortality. Our aims were to assess whether different doses of beta-carotene, vitamin A, and vitamin E affect mortality in primary and secondary prevention randomized clinical trials with low risk of bias. MethodsThe present study is based on our 2012 Cochrane systematic review analyzing beneficial and harmful effects ...

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