Homocysteine Levels in Vegetarians versus Omnivores

@article{KrajoviovKudlkov2000HomocysteineLI,
  title={Homocysteine Levels in Vegetarians versus Omnivores},
  author={M. Kraj{\vc}ovi{\vc}ov{\'a}-Kudl{\'a}{\vc}kov{\'a} and P. Bla{\vz}{\'i}{\vc}ek and J. Kopcov{\'a} and A. B{\'e}derov{\'a} and K. Babinska},
  journal={Annals of Nutrition and Metabolism},
  year={2000},
  volume={44},
  pages={135 - 138}
}
Vitamin B12, folate, and vitamin B6 are the main determinants of homocysteinemia. The vegan diet provides no vitamin B12, but also less strict forms of alternative nutrition may suffer from a deficit of this vitamin. The plasma homocysteine level was measured in alternative nutrition groups of adults (lacto- and lactoovovegetarians, n = 62; vegans, n = 32) and compared with the levels in a group consuming traditional diet (n = 59), omnivores). In the group of vegetarians the average… Expand
B-Vitamin Status and Concentrations of Homocysteine in Austrian Omnivores, Vegetarians and Vegans
TLDR
Thiamin and folate need not be a problem in a well-planned vegan diet, especially regarding elevated homocysteine levels in plasma, and Pyridoxine status appeared to be independent of the diet. Expand
Vitamin B12 and folate status in Spanish lacto-ovo vegetarians and vegans
TLDR
Spanish vegetarians present high folate status but vitamin B12 subclinical deficiency was demonstrated using functional markers, which emphasise the need of cobalamin supplementation in both lacto-ovo vegetarians and vegans. Expand
Plasma total homocysteine status of vegetarians compared with omnivores: a systematic review and meta-analysis
TLDR
The present study confirmed that an inverse relationship exists between plasma tHcy and serum vitamin B12, from which it can be concluded that those who choose to omit or restrict these products are destined to become vitamin B 12 deficient. Expand
Effect of Vegetarian Diet on Homocysteine Levels
TLDR
Vegetarian subjects presented significantly higher tHcy levels, higher prevalence of hyperhomocysteinemia, and lower serum vitamin B12 levels than controls. Expand
Vegetarian lifestyle and monitoring of vitamin B-12 status.
  • W. Herrmann, J. Geisel
  • Medicine, Biology
  • Clinica chimica acta; international journal of clinical chemistry
  • 2002
TLDR
Stage III of vitamin B-12 deficiency is found in over 60% of vegetarians, thus underlining the importance of cobalamin monitoring in this dietary group. Expand
Homocysteine and cobalamin status in German vegans
TLDR
Cobalamin status needs to be improved in order to minimise the risk of hyperhomocysteinaemia and be improved to a lesser extent than were strict vegans. Expand
Vitamin B12 Deficiency Is Prevalent Among Czech Vegans Who Do Not Use Vitamin B12 Supplements
TLDR
Cobalamin deficiency risk depends on supplementation status and not on the duration of an exclusive vegan diet, which underlines the need to integrate cobalamin status monitoring and counselling on supplement use in routine clinical care in the Czech Republic. Expand
The relationship between micronuclei in human lymphocytes and selected micronutrients in vegetarians and non-vegetarians.
TLDR
A pilot study to determine the relationship between the micronucleus frequency in lymphocytes and diet, and compared the levels of Vitamins C and E, beta-carotene, B(12), folic acid, homocysteine and total antioxidant capacity in healthy vegetarians and non-vegetarians. Expand
Serum concentrations of vitamin B12 and folate in British male omnivores, vegetarians, and vegans: results from a cross-sectional analysis of the EPIC-Oxford cohort study
TLDR
Vegans have lower vitamin B12 concentrations, but higher folate concentrations, than vegetarians and omnivores. Expand
Considering the Case for Vitamin B12 Fortification of Flour
TLDR
Although the evidence is limited, it shows that fortified flour, consumed as bread, can improve vitamin B12 status, and further research should evaluate the bioavailability of the vitamin from fortified flour by elderly people with food cobalamin malabsorption and gastric atrophy. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 24 REFERENCES
Traditional and alternative nutrition - levels of homocysteine and lipid parameters in adults
Values of homocysteine and lipid parameters were measured in groups of adults consuming alternative nutrition (vegetarians/lactoovo/, vegans) and compared with a group consuming traditional dietExpand
Nutrient intake and vitamin status of healthy French vegetarians and nonvegetarians.
TLDR
Vegetarians did not have a higher risk rate for a biochemical vitamin deficiency of thiamin, riboflavin, folates, and vitamins B-6, C, A, and E than the nonvegetarians. Expand
[Alternative nutrition and glutathione levels].
TLDR
Low protein intake exclusively of plant origin, significantly lower protein levels with 16% frequency of hypoproteinaemia, significantlyLower glutathione values in blood in comparison to omnivores and lactoovovegetarians confirm the risk of a vegan diet also in adult age. Expand
Vitamins B12, B6 and folate as determinants of homocysteine concentration in the healthy population
TLDR
It may be necessary to redefine an adequate blood folate level and probably reformulate dietary allowances for this B-vitamin due to the important role of folate status as a determinant of homocysteine concentration. Expand
Staging vitamin B-12 (cobalamin) status in vegetarians.
  • V. Herbert
  • Chemistry, Medicine
  • The American journal of clinical nutrition
  • 1994
TLDR
Because TCII is depleted of vitamin B-12 within days after absorption stops, the best screening test for early negative vitamin B -12 balance is a measurement of vitaminB-12 on TCII (holoTCII). Expand
Vitamin intake: a possible determinant of plasma homocyst(e)ine among middle-aged adults.
TLDR
Dietary intake data from a case-control study of 322 middle-aged individuals with atherosclerosis in the carotid artery and 318 control subjects without evidence of this disease showed similar associations between dietary variables and plasma homocyst(e)ine. Expand
Vitamin status and intake as primary determinants of homocysteinemia in an elderly population.
TLDR
A strong association between homocysteine concentration and folate, vitamin B12, and vitamin B6 status, as well as age is indicated, suggesting that a substantial majority of the cases of high homocy steine in this older population can be attributed to vitamin status. Expand
Vitamin B-12: plant sources, requirements, and assay.
  • V. Herbert
  • Biology, Medicine
  • The American journal of clinical nutrition
  • 1988
Vitamin B-12 is of singular interest in any discussion of vegetarian diets because this vitamin is not found in plant foods as are other vitamins. Many of the papers in the literature give values ofExpand
Vitamin B12 Deficiency Due to a Strictly Vegetarian Diet in Adolescence
A 14-year-old white girl suffered from severe neurologic disturbances caused by vitamin B12 deficiency, due to failure to provide vitamin B12 supplementation to a strictly vegetarian diet. TheExpand
Total homocysteine in plasma or serum: methods and clinical applications.
TLDR
Total homocysteine in serum/plasma is increased markedly in patients with cobalamin or folate deficiency, and decreases only when they are treated with the deficient vitamin, and justify introduction of the total homocy steine assay in the routine clinical chemistry laboratory. Expand
...
1
2
3
...