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The Vegetarian Adolescent.

Ecologic and philosophic as well as health concerns have led to an increasing number of adolescent vegetarians. The various types of vegetarianism differ substantially in dietary composition. Benefits of the vegetarian diet must be balanced by careful attention to ensuring adequate intake of protein and amino acids as well as certain vitamins and minerals that tend to be less available in plant foods.

An uncooked vegan diet shifts the profile of human fecal microflora: computerized analysis of direct stool sample gas-liquid chromatography profiles of bacterial cellular fatty acids.

The effect of an uncooked extreme vegan diet on fecal microflora was studied by direct stool sample gas-liquid chromatography (GLC) of bacterial cellular fatty acids and by quantitative bacterial culture by using classical microbiological techniques of isolation, identification, and enumeration of different bacterial species. Eighteen volunteers were divided randomly into two groups. The test group received an uncooked vegan diet for 1 month and a conventional diet of mixed Western type for the other month of the study.

The energy and nutrient intakes of different types of vegetarian: a case for supplements?

Vegetarians of three types were studied in Greater London: thirty-four meat-avoiders, fifty-two lacto-ovo-vegetarians, and thirty-eight vegans. Weighed dietary intake measures were made over 3 d. Cereals were the mainstay of the diet, supplemented by dairy products (demi-vegetarians and lacto-ovo-vegetarians), vegetables and fruit, and soya-bean products (vegans). Many vegans progressed by stages to complete avoidance of animal foods; some had retreated, but most were highly committed. Demi-vegetarians were the least involved in a 'vegetarian lifestyle'.

Reduced plasma fibrinogen, serum peroxides, lipids, and apolipoproteins after a 3-week vegetarian diet.

The influence of a 3-week vegetarian diet and fasting on serum concentration of peroxides, lipids, apolipoproteins, and plasma fibrinogen was studied in ten middle-aged fibromyalgia/fibrositis patients (eight women, two men). Mean serum peroxide concentration (estimated as thiobarbituric acid reacting substances) was reduced from 3.60 +/- 0.14 to 2.82 +/- 0.15 umol/l (p = 0.01) and plasma fibrinogen from 3.33 +/- 0.25 to 2.74 +/- 0.15 g/l (p = 0.02). Serum total cholesterol fell from 6.61 +/- 0.50 to 4.83 +/- 0.35 mmol/l (p

Ambulatory blood pressure and heart rate responses to vegetarian meals.

OBJECTIVES:To determine the effects of a vegetarian diet on daytime ambulatory (Accutracker) blood pressures and heart rates, and to relate these to the estimated peak in plasma glucose to determine whether low-glycaemic-index diets reduce sympathetic activity in response to differences in postprandial glucose and insulin.

DESIGN:The subjects were matched for age and body mass index and randomly assigned to one of two parallel diet groups.

SETTING:Clinical.

The influence of fast and vegetarian diet on parameters of nutritional status in patients with rheumatoid arthritis.

Nutritional status was studied over a period of 13 months in 34 patients with rheumatoid arthritis (RA). Seventeen patients fasted for 7-10 days, were then transferred to a gluten-free vegan diet for 3.5 months and finally to a lactovegetarian diet for 9 months. The remaining 17 patients followed a "normal" diet. After one month, the values for body mass index (BMI) and triceps skinfold thickness (TSF) were significantly reduced in the diet group compared with the values at inclusion (p

Dietary zinc intake of vegetarian and nonvegetarian patients with anorexia nervosa.

Anorexia nervosa (AN) and zinc deficiency, found most frequently in young females, have a number of symptoms in common. These include weight loss, alterations in taste and appetite, depression, and amenorrhea. Approximately half of anorexia nervosa patients (ANs) are vegetarian (VANs), a practice that may increase their risk for zinc deficiency. This study compared the dietary intake of zinc and related nutrients in 9 outpatient VANs with that of 11 outpatient nonvegetarian patients with anorexia nervosa (NVANs). VANs reported significantly lower (p

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