best to inject b12 subcutaneously or intramuscular Optimal Injection Sites for Maximum Absorption and Benefits Best Vitamin B12 Injection Site:

WITHDRAWAL PERIOD: Meat- 0 days

For example, a person lacking both Vitamin B12 and folate might have more severe thrombocytopenia

NICE Evidence Reviews Collection

Side effects are rare but may include: Mild allergic reactions Acne-like skin rash Nausea or upset stomach Always consult your doctor before starting B12 supplements, especially if you are on other medications

What to Expect in Month 1 Appetite changes: Noticeable suppression begins week 3-4 for most Mild nausea: 40% experience some nausea, usually mild Injection site reactions: Redness, itching, or mild pain at injection site (14% of patients) Fatigue: Some patients report low energy as body adjusts Bowel changes: Either constipation or looser stools as medication affects gut motility 4 Essential Strategies for Month 1 1