Would value your knowledge because my husband has had both. The Medichecks methylmalonic was positive, <32, his was 34.7 and the NHS methymalonate (the one in the photo) was negative. The NHS IFa was also negative, so now we’re concerned the specialist will dismiss the positive one
Knowing if there’s a difference between the two would be useful. Having googled it, I can’t find anything satisfactory
Thank you