is liquid b12 as effective as injection Efficacy of different routes of vitamin supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis B12 Shots vs. IV Infusions:

How long does it take to work

This complex process means that conditions affecting the stomach or intestines can significantly impair B12 absorption, including pernicious anaemia, atrophic gastritis, previous gastric surgery, coeliac disease, Crohn's disease, and long-term use of certain medications (such as metformin, proton pump inhibitors, and H2 antagonists)

(85 g) provides 833% of the DV (22,24)

Secondary objectives Measure whether daily maternal administration of 50 g vitamin B 12 from early pregnancy until 6 months postpartum improves haemoglobin concentration of the mother and infant, and also assess the relationship between maternal and infant haemoglobin concentration on cognitive outcomes at 6 and 12 months of age