Review

DHA status of vegetarians.

BACKGROUND: Docosahexaenoic acid (22:6n-3; DHA) is absent from vegan diets and present in limited amounts in vegetarian diets.

OBJECTIVE: To review DHA status in vegetarians and vegans.

DESIGN: To identify published studies and review their findings.

Cross-cultural association between dietary animal protein and hip fracture: a hypothesis.

Age-adjusted female hip fracture incidence has been noted to be higher in industrialized countries than in nonindustrialized countries. A possible explanation that has received little attention is that elevated metabolic acid production associated with a high animal protein diet might lead to chronic bone buffering and bone dissolution. In an attempt to examine this hypothesis, cross-cultural variations in animal protein consumption and hip fractureincidence were examined.

Five-year survival rates of melanoma patients treated by diet therapy after the manner of Gerson: a retrospective review.

OBJECTIVE:
Compare 5-year melanoma survival rates to rates in medical literature.

DESIGN:
Retrospective.

SETTING:
Hospital in Tijuana, Mexico.

PATIENTS:
White adult patients (N = 153) with superficial spreading and nodular melanoma, aged 25-72 years.

Routine vitamin supplementation to prevent cardiovascular disease: a summary of the evidence for the U.S. Preventive Services Task Force.

BACKGROUND:
Antioxidant vitamins are thought to play a role in atherosclerosis. Supplementation of these nutrients has been explored as a means of reducing cardiovascular morbidity and mortality.

PURPOSE:
To assess the evidence of the effectiveness of vitamin supplementation, specifically vitamins A, C, and E; beta-carotene; folic acid; antioxidant combinations; and multivitamin supplements, in preventing cardiovascular disease.

DATA SOURCES:
Cochrane Controlled Trials Registry and MEDLINE (1966 to September 2001), reference lists, and experts.

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