Vegetarisch - voor iedereen > Lekker gezond

Wetenschappelijk onderzoek naar vegetarisme

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eno2:

--- Citaat van: @rno op 14 mei 2008, 19:16:39 ---
Heeft iemand voor mij een korte samenvatting in het Nederlands.

Zoiets als: vegetariërs zijn supermensen en leven eeuwig, gezond en gelukkig


--- Einde van citaat ---
Ik, nadat ik al die studies gelezen heb. Wacht dus maar even, een maand of twee of zo

Robjee:

--- Citaat ---Het verbaast me. Maar wat is de rating van deze onderzoeken? In de tekst zelf wordt gezegd dat het gaat om kleine populaties.
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Het beperkt aantal studies betreft de totale inname van zuivel en mortaliteit (eerste onderzoek). Voor de relatie met hart- en vaatziekten zijn er meer onderzoeken aanwezig.
In ieder geval blijkt hieruit dat het niet aannemelijk is dat het gebruik van zuivel gepaard gaat met hart- en vaatziekten of een hogere mortaliteit.


--- Citaat ---Maar het lijkt me dat de gevaren niet in de eerste plaats van zuivel komen, maar van vlees en van bewerkte en getransformeerde en hittebereidde dierlijke vetten.
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Inderdaad lijkt zuivel niet de boosdoener.
Om nu met de vinger naar vlees te wijzen vind ik gevaarlijk. Dit is afhankelijk van de hoeveelheid vlees en het soort vlees dat er gegeten wordt.
Wel verhogen transvetten het risico op hart- en vaatziekten. De hoeveelheid transvetten in de Nederlandse voeding is echter drastisch gedaald.

CONCLUSIONS: Consumption of processed meats, but not red meats, is associated with higher incidence of CHD and diabetes mellitus. These results highlight the need for better understanding of potential mechanisms of effects and for particular focus on processed meats for dietary and policy recommendations.
http://www.ncbi.nlm.nih.gov/pubmed/20479151

In conclusion, lean red meat, trimmed of visible fat, which is consumed in a diet low in saturated fat does not increase cardiovascular risk factors (plasma cholesterol levels or thrombotic risk factors).
http://www.ncbi.nlm.nih.gov/pubmed/15927927

Robjee:
Vegetarian diets in children and adolescents

A well-balanced vegetarian diet can provide for the needs of children and adolescents. However, appropriate caloric intake should be ensured and growth monitored. Particular attention should be paid to adequate protein intake and sources of essential fatty acids, iron, zinc, calcium, and vitamins B12 and D. Supplementation may be required in cases of strict vegetarian diets with no intake of any animal products. Pregnant and nursing mothers should also be appropriately advised to ensure that the nutritional needs of the fetus and infant are adequately met. Recommendations are provided. Adolescents on restricted vegetarian or other such diets should be screened for eating disorders.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912628/pdf/pch15303.pdf

Robjee:
Farmer B, Larson BT, Fulgoni VL 3rd, Rainville AJ, Liepa GU. A vegetarian dietary pattern as a nutrient-dense approach to weight management: an analysis of the national health and nutrition examination survey 1999-2004. J Am Diet Assoc. 2011 Jun;111(6):819-27.

Abstract
BACKGROUND: Population-based studies have shown that vegetarians have lower body mass index than nonvegetarians, suggesting that vegetarian diet plans may be an approach for weight management. However, a perception exists that vegetarian diets are deficient in certain nutrients.

OBJECTIVE
To compare dietary quality of vegetarians, nonvegetarians, and dieters, and to test the hypothesis that a vegetarian diet would not compromise nutrient intake when used to manage body weight.

DESIGN
Cross-sectional analysis of National Health and Nutrition Examination Survey (1999-2004) dietary and anthropometric data. Diet quality was determined using United States Department of Agriculture's Healthy Eating Index 2005. Participants included adults aged 19 years and older, excluding pregnant and lactating women (N=13,292). Lacto-ovo vegetarian diets were portrayed by intakes of participants who did not eat meat, poultry, or fish on the day of the survey (n=851). Weight-loss diets were portrayed by intakes of participants who consumed 500 kcal less than their estimated energy requirements (n=4,635). Mean nutrient intakes and body mass indexes were adjusted for energy, sex, and ethnicity. Using analysis of variance, all vegetarians were compared to all nonvegetarians, dieting vegetarians to dieting nonvegetarians, and nondieting vegetarians to nondieting nonvegetarians.

RESULTS
Mean intakes of fiber, vitamins A, C, and E, thiamin, riboflavin, folate, calcium, magnesium, and iron were higher for all vegetarians than for all nonvegetarians. Although vegetarian intakes of vitamin E, vitamin A, and magnesium exceeded that of nonvegetarians (8.3±0.3 vs 7.0±0.1 mg; 718±28 vs 603±10 μg; 322±5 vs 281±2 mg), both groups had intakes that were less than desired. The Healthy Eating Index score did not differ for all vegetarians compared to all nonvegetarians (50.5±0.88 vs 50.1±0.33, P=0.6).

CONCLUSIONS
These findings suggest that vegetarian diets are nutrient dense, consistent with dietary guidelines, and could be recommended for weight management without compromising diet quality.

eno2:

--- Citaat ---CONCLUSIONS
These findings suggest that vegetarian diets are nutrient dense, consistent with dietary guidelines, and could be recommended for weight management without compromising diet quality.
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rare conclusie

veel te breed, het hele spectrum van vegetarisme

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