There seemed something fishy about this article. I looked up the first stat that caught my eye,

> One study found that 25% of vegans had very low blood iron levels, compared to 3% of vegetarians and 0% of omnivores.

That just sounded like rubbish – although "one study" has found almost everything – so I clicked the link to the paper, Nutrient Intake and Iron Status of Australian Male Vegetarians which turns out to have involved 39 ovolactovegetarians, 25 omnivores, and 10 vegans. 10 - so already the "25% of vegans" must be nonsense. I couldn't find the 25% figure in the paper, but I think it comes from this:

> One ovolacto-vegetarian aged 23 years and two vegans aged 41 and 36 years had serum ferritin concentrations below 12ng/ml (11, 8 and 10 ng/ml, respectively).

At that point I lost interest.