Guest guest Posted March 6, 2010 Report Share Posted March 6, 2010 Nick has recommended holding off on T3 increases until b12 levels are up http://health.groups.yahoo.com/group/RT3_T3/message/20647 Shouldn't be too long a wait, though, if you take 5000 mcg sublingual b12 a day, your levels will go up very rapidly - mine did in just a few days. B12 levels don't take weeks/months to raise, like oral iron does. > > > > That's my understanding as well. > > > > >>but it is my understanding that it is not possible to " overdose " on b12...it is water-soluble and any the body can't use is eliminated in the urine.<< > > > > pam > > > Quote Link to comment Share on other sites More sharing options...
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