You want to fix the damage and address the underlying cause(s) of that damage
Context matters Test alongside other markers such as fasting insulin, glucose, thyroid function, and possibly GH stimulation testing if deficiency is suspected
Vitamin B12 absorption: mammalian physiology and acquired and inherited disorders
Push the needle through the center of the rubber stopper at a slight angle with the bevel facing up
Another class of gastric acid inhibitors known as histamine 2 (H 2 )-receptor antagonists (e.g., cimetidine, famotidine, and ranitidine), often used to treat peptic ulcer disease, has also been found to decrease the absorption of vitamin B 12 from food
Some food items that are enriched in vitamin B12 are