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If normal, start 1000 mcg oral b12 daily as prevention given multiple risk factors (age, metformin, PPI, now semaglutide)
However, losing weight isn't as easy as it is to put on
Theres some confusion about reliable sources also
Peptide hormones, growth factors, related substances and mimetics
doi: 10.3390/plants10020194 32 do NascimentoC
Methods Ethical approval All animal experiments reported herein were performed following the guidelines and were approved by Peking University Institutional Animal Care and Use Committee (LA2021316)
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