Wellness & Injectables
Vitamin B12 Injections
Injectable vitamin B12 to support energy levels, metabolism, nerve function, mood, sleep and immune health — delivered by NHS-trained Advanced Clinical Practitioners with a safety-first approach.
What is vitamin B12, how do we absorb it and what can make us deficient?
Vitamin B12 injections are an injectable form of vitamin B12. Normally, vitamin B12 is absorbed via the gastric tract including within the small intestine from the food which we eat — examples of foods rich in vitamin B12 include eggs, fish, red meat and more. In order for the gut to absorb vitamin B12 from the foods we eat, it has to bind to a protein called Intrinsic Factor which is found naturally within our gut.
Vitamin B12 is important for our metabolism, red blood cells, DNA and the development of our brain and nerve health.
Certain individuals are more at risk of deficiency, including:
- 1.People who either do not eat foods which contain vitamin B12, or eat very little — such as people who follow a vegetarian or vegan diet.
- 2.People who have Pernicious Anaemia — an autoimmune disease that attacks and destroys Intrinsic Factor within the gut, meaning these individuals cannot absorb vitamin B12 from the foods they eat, even if they eat B12-rich foods.
- 3.People who have had surgery on their gastric tract or bowel where the Intrinsic Factor is produced.
- 4.People with diseases of the gastric tract, such as Coeliac disease or Colitis.
- 5.Certain medications such as antacid medications (Omeprazole, Lansoprazole, Esomeprazole, Cimetidine, Famotidine, Nizatidine, Ranitidine), other over-the-counter antacids to relieve heartburn and indigestion, Metformin (a drug used in diabetes), and antihistamines for hayfever and other allergies — all of which can affect the absorption of B12 from the foods we eat.
What symptoms are associated with low vitamin B12 levels?
Low vitamin B12 levels can have a significant impact on both mental and physical health.
Memory loss or confusion
Depression and anxiety
Lack of energy
Feeling weak
Nerve damage such as numbness or tingling to the hands and feet
Seizures
Pernicious Anaemia
Hair loss
Headaches
Bell's Palsy
Do I have to have a blood test before I can have a vitamin B12 injection?
No — even if your B12 levels are within normal limits, it is still safe to proceed with an injection. The way that the body absorbs the vitamin from the injection means that any of the injection which is not required is excreted in the urine.
What are the benefits of vitamin B12?
Having vitamin B12 injections can:
Increase energy levels
Balance hormones
Support with regulating metabolism and aid weight loss
Support with the function of the nerves in your body
Can help to reduce anxiety and depression
Boost immune system
Improve sleep quality
Improve memory
Who should NOT have a vitamin B12 injection?
- Women who are pregnant or breastfeeding (unless your GP checks bloods and authorises)
- People who are very sensitive to the vitamin B12 injection
- People with Leber's disease, which affects the nerve that supplies the eyes (optic nerve)
- People who are known to have kidney problems
- People with low potassium levels
- People who have active cancer, or are currently receiving cancer treatment
Your practitioner will assess your suitability during your consultation.
If I am known to be vitamin B12 deficient from recent blood results, how many injections do I need?
If you are deficient on a blood test, we recommend the following amount of injections:
Loading phase: 1 injection 3 times per week for 2 weeks.
Maintenance: Followed by 1 injection every 12 weeks if required.
How to book
Whether you have a confirmed B12 deficiency or are looking to support your energy and wellbeing, book online and your practitioner will assess your suitability at consultation.