triathlon-szene.de | Europas aktivstes Triathlon Forum - Einzelnen Beitrag anzeigen - Mit dem Paleo-Lifestyle zu neuen Höchstleistungen (Teil 3)

13.11.2013, 23:41

Zitat:

Zitat von photonenfänger

schnipp....particularly in the context of a vegetarian diet that may be low in B12 and protein and high in carbohydrate.....schnipp

Hat jetzt eigentlich endlich mal wirklich jemand einen Vegetarier getroffen, der VitB12-Mangel hat?

Dem schlecht informierten Mann kann geholfen werden:

Zitat:

How prevalent is vitamin B(12) deficiency among vegetarians?
Pawlak R, Parrott SJ, Raj S, Cullum-Dugan D, Lucus D.
Source

Department of Nutrition Science, East Carolina University, Greenville, NC 27858, USA. pawlakr@ecu.edu
Abstract

Vegetarians are at risk for vitamin B(12) (B12) deficiency due to suboptimal intake. The goal of the present literature review was to assess the rate of B12 depletion and deficiency among vegetarians and vegans. Using a PubMed search to identify relevant publications, 18 articles were found that reported B12 deficiency rates from studies that identified deficiency by measuring methylmalonic acid, holo-transcobalamin II, or both. The deficiency rates reported for specific populations were as follows: 62% among pregnant women, between 25% and almost 86% among children, 21-41% among adolescents, and 11-90% among the elderly. Higher rates of deficiency were reported among vegans compared with vegetarians and among individuals who had adhered to a vegetarian diet since birth compared with those who had adopted such a diet later in life. The main finding of this review is that vegetarians develop B12 depletion or deficiency regardless of demographic characteristics, place of residency, age, or type of vegetarian diet. Vegetarians should thus take preventive measures to ensure adequate intake of this vitamin, including regular consumption of supplements containing B12.

Quelle

Mehr gefällig? Bittesehr

Noch mehr? OK...

Und weils grad so schön ist: Das noch

Ach ja...die angeblich so gesunden Inder...

Auch sehr kompakt:

Zitat:

Vitamin B12 deficiency as a worldwide problem.
Stabler SP, Allen RH.
Source

Division of Hematology, Department of Medicine, University of Colorado Health Sciences Center, Denver, Colorado 80262, USA. Sally.Stabler@UCHSC.edu
Abstract

Pernicious anemia is a common cause of megaloblastic anemia throughout the world and especially in persons of European or African descent. Dietary deficiency of vitamin B12 due to vegetarianism is increasing and causes hyperhomocysteinemia. The breast-fed infant of a vitamin B12-deficient mother is at risk for severe developmental abnormalities, growth failure, and anemia. Elevated methylmalonic acid and/or total homocysteine are sensitive indicators of vitamin B12-deficient diets and correlate with clinical abnormalities. Dietary vitamin B12 deficiency is a severe problem in the Indian subcontinent, Mexico, Central and South America, and selected areas in Africa. Dietary vitamin B12 deficiency is not prevalent in Asia, except in vegetarians. Areas for research include intermittent vitamin B12 supplement dosing and better measurements of the bioavailability of B12 in fermented vegetarian foods and algae.

Quelle

Die Chinesen auch?