Studies that relate to population-based data on heart disease prevalance and incidence
OBJECTIVE:To observe any changes in serum concentrations of lipids, when UK meat-eaters switch to a self selected vegetarian diet for 6 months. DESIGN:Observational study using capillary blood samples and 3-day estimated dietary diary. SETTING:Free-living subjects in the North-West of England. SUBJECTS:Twelve male and 31 female adult volunteers aged between 18 and 42 years. OUTCOME MEASURES:Serum lipids; nutrient intake and anthropometric measurements at baseline and 6 months after switching to a self-selected vegetarian diet.
The biochemical status of 72 vegetarians (aged 40-60) was studied; 35 persons kept to a lactoovovegetarian diet and 37 persons followed a vegan diet (vegetable food only). As the results of the investigation showed, almost all of the biochemical parameters of blood tests in the both groups were kept to the physiological norm.
A population-based sample of Seventh-Day Adventists was studied to determine the relationship between vegetarian status, body mass index (BMI), obesity, diabetes mellitus (DM), and hypertension, in order to gain a better understanding of factors influencing chronic diseases in Barbados. A systematic sampling from a random start technique was used to select participants for the study.
OBJECTIVE:With the increasing knowledge about the antioxidant potential of many micronutrients such as zinc and vitamin C, their roles in oxidative stress related health disorders have been postulated. This study therefore investigated low micronutrient status as a predisposing factor for hypertension in a traditionally lacto-vegetarian population like Indians. METHODS:Micronutrient profile was assessed in 109 hypertensives with age-gender-socio-economic status matched 115 healthy normotensives (30-58 years of age).
The purpose of the study was to examine the capacities of correction of impaired lipid metabolism in patients with CHD receiving selective beta-adrenoblockers (beta-AB) by using an antiatherogenic milk-and-vegetable diet. According to the type of antiatherogenic diet, 67 patients were divided into 2 groups: 1) 42 patients were on an antiatherogenic vegetarian diet (a vegetarian group--VG) and 2) 25 patients received routine mixed diet No. 10c (a control group--CG).
OBJECTIVE:We compared plasma biomarkers of antioxidant status, oxidative stress, inflammation, and risk for coronary heart disease in long-term vegetarians and age- and sex-matched omnivores. METHODS:Thirty vegetarians (mean age +/- standard deviation: 44.2 +/- 9.0 y) were recruited. The subjects had been vegetarian for 5 to 55 y (21.8 +/- 12.2 y). The control group comprised 30 adults selected by age-stratified sampling from a community health project (mean age: 44.0 +/- 9.2 y).
Vegetarian diets do not contain meat, poultry or fish; vegan diets further exclude dairy products and eggs. Vegetarian and vegan diets can vary widely, but the empirical evidence largely relates to the nutritional content and health effects of the average diet of well-educated vegetarians living in Western countries, together with some information on vegetarians in non-Western countries. In general, vegetarian diets provide relatively large amounts of cereals, pulses, nuts, fruits and vegetables.
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