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User 3 split his 500mcg dose as 250mcg every 12 hours specifically to account for what he cited as a 4 to 6-hour half-life
Food and nutrition science: the new paradigm
Gene (2020) 724:144144
If you have symptoms like weakness or fatigue, heart palpitations, confusion, balance problems, infertility, pale skin, or loss of appetite, reach out to your healthcare provider to see if you should undergo a B12 screening, which involves a simple blood test
If you increase your dose to get results, you are also increasing your exposure to potentially impure substances
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