are vitamin b12 tablets as good as injections What the Benefits of Injections? The Truth About B12 Injections:
Description
Six trials enrolled 925 subjects testing intravenous and oral formulations at various doses

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Absorption Issues from GI Conditions and Surgery Other health issues can throw up similar roadblocks to B12 absorption, making long-term injection therapy the only effective solution

It appears this synthol is going to get worse before it gets better
This can lead to a virtuous cycle of improved fitness and health

doi: 10.1016/j.bmcl.2005.05.109