Can anyone recommend any labs for private B12, folate, ferritin, intrinsic factor, etc testing? My daughter has all the symptoms of B12 deficiency. Has been tested for thyroid function which is apparently normal, as are all her other bloods. Testing for B12 has not been carried out on the NHS. Have had a problem with Nuffield Health who won't test my daughter as she is under 18.... anyone else had this experience? Really confused about which way to turn!
Thank you so much.