A vitamin B12 deficiency can cause extreme fatigue, among other symptoms, and leave individuals feeling weak and foggy
This structural difference affects stability, bioavailability, and conversion requirements in the body
A couple of 'things'': it is possible to have anaemia and haemochromotis at the same time (though you don't have a low Hb), there are conditions called iron out of balance and functional iron deficiency (associated with low or dropping ferritin), which can be caused by autoimmune disease, PA, absorption problems, coeliac disease, absorption problems and issues to do with gene mutations (HFE gene, mutations C282Y, H63D, and S65C) - and many other things as well
However, self-prescribing is never a good idea
Patients seeking weight management support should consult their GP for referral to NHS weight management services, dietitians, or specialist obesity clinics where appropriate
Savvi, S