B12 levels can decrease with age, as well as being lower in people who have undergone weight loss surgery, or suffer from multiple sclerosis, pernicious anaemia, Crohns or celiac disease
"Guidelines for the diagnosis and treatment of cobalamin and folate disorders"
Breastfeeding mothers require 2.0 g daily, whilst children's needs range from 0.3 g in infancy to 1.5 g in adolescence
Pain intensity was compared between the two groups using a visual analog scale (VAS) score before (T before ) and at 0 h (T 0 ), 4 h (T 4 ), 8 h (T 8 ), 24 h (T 24 ), 48 h (T 48 ), and 72 h (T 72 ) after the procedure
Your GP may arrange further blood tests, imaging studies, or referral to specialist services depending on clinical suspicion and initial investigation results