Ctrl+F "B12". Here's a quoted reference from the article:
> [V]egans exhibited a higher estimated prevalence of inadequacies for some nutrients, in particular vitamin B12 (69.9% in men and 83.4% in women <55 years of age), compared to meat-eaters. […] Our study highlighted that, overall, self-reported vegetarians and vegans may meet nutritional recommendations.
Those numbers are crazy high. I am not an expert in any of this, so take this with a healthy dose of skepticism, but I wonder if a vegan diet can be considered healthy without supplements given the current range of available non-animal B12 sources. I think there are some algae sources but I'm not sure you can get enough B12 without getting too much of something else. There's also the question of how efficiently you absorb the nutrients in the food; I heard it's harder to absorb B12 from algae than from cheese for example. Happy to be shown evidence for or against...
> [V]egans exhibited a higher estimated prevalence of inadequacies for some nutrients, in particular vitamin B12 (69.9% in men and 83.4% in women <55 years of age), compared to meat-eaters. […] Our study highlighted that, overall, self-reported vegetarians and vegans may meet nutritional recommendations.
Those numbers are crazy high. I am not an expert in any of this, so take this with a healthy dose of skepticism, but I wonder if a vegan diet can be considered healthy without supplements given the current range of available non-animal B12 sources. I think there are some algae sources but I'm not sure you can get enough B12 without getting too much of something else. There's also the question of how efficiently you absorb the nutrients in the food; I heard it's harder to absorb B12 from algae than from cheese for example. Happy to be shown evidence for or against...