firstly, sorry for no capitals. i've broken my arm so am typing one handed.
i took solgar and jarrow 5000mcg b12 for 4 months - fantastic result, felt so much better. my blood test came back as b12 being 1400 so i changed to the 1000mcg as a 'follow on'. however, i've noticed two things. the tablets 'melt' under my tongue in about 30 seconds whereas the 5000mcg ones could take 15 minutes. i wonder if this is usual and if it will affect absorption??
also i have a return of some of my symptoms like the 3pm 'dip' and some tingling in my hands and feet.
any suggestions?
Written by
matty220
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Your blood test result ONLY reflects the B12 circulating in the blood and NOT the amount in the cells where it is needed. Of course it will be high as you have been supplementing. I would continue with the 5000 mcg lozenge as you obviously need it if your symptoms have returned. Are you also taking a GOOD B Complex to keep all the B's in balance ?
I have weekly injections of Hydroxocobalamin and the Methylcobalamin works differently in the body. I take the 5000 when I am not able to have an injection and 1000 when I do. I have nerve damage.
No known problems with high B12 in blood - not toxic - so would go with what makes you feel best and not worry about a high result.
As Marz indicates - the low result at the start probably indicates that you have an absorption problem - sublinguals try to work by avoiding absorption in the gut and being absorbed through membranes in the mouth - the faster rate may mean that there is less absorption through the membranes in the mouth and more through the gut so might be why it seems so much less effective.
1% of B12 is absorbed outside the ileum which is where most absorption problems occur - so the doses you are taking should in theory mean that even if B12 is still being absorbed in the gut then enough is getting through.
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