Vegetarisch - voor iedereen > Lekker gezond

Wetenschappelijk onderzoek naar vegetarisme

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Hizikigrrrl:
Ik kwam er toevallig 2 tegen:

http://www.ivu.org/news/evu/news962/studies.html
Oxford Vegetarian Studies Update, 1996

http://www.ivu.org/oxveg/Talks/longtermhealthveg.html
The Long Term Health of Western Vegetarians, 2002

Hizikigrrrl:
http://www.ncbi.nlm.nih.gov/pubmed/18364335?ordinalpos=3&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
The relative impact of a vegetable-rich diet on key markers of health in a cohort of Australian adolescents. 2008
Adolescents consuming predominantly vegetarian foods showed significantly better scores on markers of cardiovascular health, including, body mass index (BMI), waist circumference, Cholesterol/High density lipoprotein ratio and low density lipoprotein. Adolescents consuming nuts more than once per week, also showed lower scores for BMI and serum glucose irrespective of their vegetarian status. Markers of general health including haemoglobin and average height were not different between groups; however a lower serum level of vitamin B12 was apparent in the vegetarian cohort.


http://www.ncbi.nlm.nih.gov/pubmed/18364334?ordinalpos=4&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
Bone mineral density of vegetarian and non-vegetarian adults in Taiwan. 2008
However, no statistical differences in BMD were observed between vegetarians and non-vegetarians of either sex. The proportion of subjects with osteopenia or osteoporosis also appeared comparable between vegetarians and non-vegetarians of either sex. BMD shows an age-related decline in Taiwanese men and women, and eating a vegetarian diet does not appear to affect this decline.



http://www.ncbi.nlm.nih.gov/pubmed/18349528?ordinalpos=5&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
Meats, Processed Meats, Obesity, Weight Gain and Occurrence of Diabetes among Adults: Findings from Adventist Health Studies. 2008
Conclusions: Our findings raise the possibility that meat intake, particularly processed meats, is a dietary risk factor for diabetes.

http://www.ncbi.nlm.nih.gov/pubmed/18305382?ordinalpos=10&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
Very low n-3 long-chain polyunsaturated fatty acid status in Austrian vegetarians and vegans 2008
CONCLUSION: The vegetarian diet, with an average n-6/n-3 ratio of 10/1, promotes biochemical n-3 tissue decline. To ensure physical, mental and neurological health vegetarians have to reduce the n-6/n-3 ratio with an additional intake of direct sources of EPA and DHA, regardless of age and gender.


http://www.ncbi.nlm.nih.gov/pubmed/18217433?ordinalpos=18&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
Serum concentration of biochemical bone turnover markers in vegetarian children. 2008
RESULTS: The average daily energetic value and the percentage of energy from protein, fat and carbohydrates in the diets were similar in both groups of children and were within the recommended range. The vegetarian children showed about a two-fold lower daily intake of calcium and vitamin D than their omnivorous counterparts. The level of 25-hydroxyvitamin D in the serum of vegetarian children was also nearly 2-fold lower compared with omnivores. In vegetarians, as compared to non-vegetarians, mean serum concentrations of OC, BALP and CTX were lower by about 20%, 10% and 15%, respectively. CONCLUSION: Our preliminary results suggest that an inadequate dietary intake of calcium and vitamin D may impair bone turnover rate in vegetarian children. The parameters of bone metabolism should be monitored in these children in order to prevent bone abnormalities.


http://www.ncbi.nlm.nih.gov/pubmed/18184390?ordinalpos=19&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
A comparison of some of the cardiovascular risk factors in vegetarian and omnivorous Turkish females 2008
RESULTS: Compared with omnivores, vegetarians had higher plasma tHcy, 10.8 +/- 3.72 versus 12.6 +/- 5.97, (P < 0.05) and folate (P < 0.05) levels. The prevalence of hyperhomocysteinaemia was higher in vegetarians than in omnivores (34.6% versus 12.0%). In addition, serum vitamin B(12) levels were lower in vegetarians than in omnivores (P < 0.05). In vegetarians, significant inverse correlation was found between tHcy and serum vitamin B(12) levels (r = -0.969, P = 0.001). CONCLUSION: The higher prevalence of mild hyperhomocysteinaemia in vegetarians indicated a diminished protective effect of vegetarian nutrition in cardiovascular disease prevention.

@rno:

Heeft iemand voor mij een korte samenvatting in het Nederlands.

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

Draek:
More Evidence Links Cow’s Milk to Type 1 Diabetes

A new study adds more evidence that cow’s milk proteins trigger type 1 diabetes. Marcia Goldfarb of Anatek-EP, a protein research laboratory in Portland, Maine, reports having found antibodies to bovine beta-lactoglobulin in the serum of children with diabetes. Individuals without diabetes did not have the antibody.

Type 1 diabetes is believed to be caused when antibodies destroy the insulin-producing pancreatic cells. Several studies have suggested that cow’s milk proteins may trigger the production of these dangerous antibodies. Larger studies are currently testing this theory.

Goldfarb M. Relation of time of introduction of cow milk protein to an infant and risk of type 1 diabetes mellitus. J Proteome Research 2008;7:2165-7

M.:
Health effects of vegetarian and vegan diets   
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. In terms of nutrients, vegetarian diets are usually rich in carbohydrates, n&#8722;6 fatty acids, dietary fibre, carotenoids, folic acid, vitamin C, vitamin E and Mg, and relatively low in protein, saturated fat, long-chain n&#8722;3 fatty acids, retinol, vitamin B12 and Zn; vegans may have particularly low intakes of vitamin B12 and low intakes of Ca. Cross-sectional studies of vegetarians and vegans have shown that on average they have a relatively low BMI and a low plasma cholesterol concentration; recent studies have also shown higher plasma homocysteine concentrations than in non-vegetarians. Cohort studies of vegetarians have shown a moderate reduction in mortality from IHD but little difference in other major causes of death or all-cause mortality in comparison with health-conscious non-vegetarians from the same population. Studies of cancer have not shown clear differences in cancer rates between vegetarians and non-vegetarians. More data are needed, particularly on the health of vegans and on the possible impacts on health of low intakes of long-chain n&#8722;3 fatty acids and vitamin B12. Overall, the data suggest that the health of Western vegetarians is good and similar to that of comparable non-vegetarians.

http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=814540&fulltextType=MR&fileId=S002966510600005X

Ik heb het hele artikel, mocht iemand interesse hebben.

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