Hi, I've had another serum test back and the level is 520, my original level was 511 and I've been using 5000mcg patches and b12 boost spray 1200mcg every day for a month. Would my levels not be better than that if I didn't have an absorption problem? I'm trying to gather info to take back to my gp for when he tells me it isn't b12 causing my symptoms.
Thanks.