"Extra strength" vitamin B12 supplements don't do anything extra for you aside from producing"expensive" urine. — dpa
Vitamin B12 supplements are being sold in “extra strength” on websites like Amazon, as well as in many shops in parts of the world where veganism is popular. Adolescents and adults have an estimated daily requirement of between 1.5 and four microgrammes of vitamin B12. Vitamin B12 is not believed to be toxic in high amounts, and yet, there is no known benefit to exceeding recommended daily allowances of up to 25 mcg., most of the 29 supplements they recently examined available on Europe’s market exceed recommended values by far, some even being an “extreme” overdose.
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