Digestive issues, such as indigestion, loss of appetite, or weight loss The digestive system relies on B vitamins for proper functioning
Diagnosis involves serum B12 testing, full blood count, and investigation of underlying causes such as pernicious anaemia or malabsorption disorders
If your iron, vitamin D, zinc or vitamin B12 levels are already normal, taking more usually won't suddenly give you thicker hair
This can be a problem for your organs, which are now not getting enough oxygen, leading to a whole host of concerning symptoms, which include: Anemia Fatigue and weakness Depression Irritability Yellowing skin Soreness of mouth and tongue Weight loss or decreased appetite Numbness of extremities Vision problems Other neurological and psychological symptoms may include fogginess, confusion, and a shift in personality and behavior
NNMT depletes the NAD+ precursor pool by methylating nicotinamide the same nicotinamide that the salvage pathway would otherwise convert back into NAD+ via the enzyme NAMPT