Generate text that refutes this claim: There are problems with being vegetarian  A vegetarian or vegan diet may result in a person not getting enough iron. This is because, although you can get iron from foods such as pulses, green leafy vegetables and nuts, the iron in these foods isn't absorbed so easily. The symptoms of this feeling breathless after little exercise, feeling tired and a short attention span and poor concentration. [1] These symptoms could negatively affect proficiency in school and the ability to perform well at work ultimately leading to a loss of productivity which has both personal effects and broader effects for the economy. Other conditions include frequently becoming ill, frequently becoming depressed, and malnourishment.  [1] Bupa's Health Information Team, ‘Iron-deficiency anaemia’, bupa.co.uk, March 2010,
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The problems with fatigue, apathetic behaviour and concentration are mostly a result from a lack of iron in the diet. However as with any diet this is only a problem when not eating the right things, this regularly means that such iron deficiency can be a problem in the developing world where vegetarians have little choice – usually eating little else except what they grow, normally just cereals. “Although the iron stores of vegetarians are sometimes reduced, the incidence of iron-deficiency anaemia in vegetarians is not significantly different from that in the general population”, there are plenty of sources of iron that can be eaten by vegetarians such as legumes and whole grains that are a substantial part of most western vegetarian’s diets meaning it is not a problem. [1] Research done in Australia concludes that "There was no significant difference between mean daily iron intakes of vegetarians and omnivores". [2]  [1] David Ogilvie, Nutrition: Iron and Vegetarian Diets, Vegetarian Network Victoria, September 2010.  [2] Madeleine J Ball and Melinda A Bartlett, ‘Dietary intake and iron status of Australian vegetarian women’, American Society for Clinical Nutrition, 1999