can you have too much vitamin b12 injection symptoms of What Need to Know About Vitamin B12 Overdose: How Much – what happens if you have

Folic Acid (Vitamin B9) This vitamin is essential for red blood cell production and DNA repair and production

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Certain medical conditions and medications increase B12 requirements: Long-term use of metformin (diabetes medication) or proton pump inhibitors (PPIs for acid reflux) can impair B12 absorption [13] [14] Gastrointestinal conditions such as Crohn's disease, coeliac disease, or previous gastric surgery Autoimmune conditions beyond pernicious anaemia may affect B12 metabolism When to contact your GP : If you are taking B12 supplements or receiving injections but continue to experience symptoms, request a review

This general rule applies to maintaining consistent supplementation schedules for vitamins)