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Message: <blockquote data-quote="ecliptic" data-source="post: 2612647" data-attributes="member: 19737">To all the vegans and vegetarians. I always feel the need to warn you of he health risks of that life style. Like any other strict life style, there are side effects. B12 deficiency is not pretty and only shows up later in life and can never be reversed. Your body needs a constant resupply of vitamin B12. If it does not, your B12 reserves dwindle over time and cannot be replaced. B12 deficiency causes permanent damage to your nervous system aswell as many other neurological side effects.  B12 can only be found in meat, eggs, and dairy products. Recent studies have shown that B12 analogues in plants such as seaweed while structually similar to B12, actually increase the speed of your natural B12 depletion and enhance the effects B12 deficiency.B12 vitamin supplements are not effective because its inability to absorb through your small intestine. IYou will want to foods fortified in B12 and calcium (calcium is needed for B12 absorption) such as cereals.Also beware if the foods you eat are fortified with plant B12 analogues. While most aren't it is best to try and confirm that they use B12 from animal protein.</blockquote>