cost of b12 injections injection needle B12 Injection Guide: Prices, Fees & Savings Tips 2026 10 Benefits of Vitamin B12

Don't expect overnight results

If you have been told by a healthcare professional that you have a vitamin C deficiency, please seek treatment through your GP

B12 occurs naturally in meats, dairy, fish, and other animal products

Seek urgent medical attention (via NHS 111 or 999 in an emergency) if you experience severe or persistent abdominal pain, persistent vomiting, signs of dehydration (such as dizziness, reduced urination, or extreme thirst), or symptoms suggestive of low blood sugar (such as shakiness, sweating, or confusion)

The amount of B12 you need will depend on your health status

Digestive disturbances: Symptoms may include loss of appetite, nausea, and diarrhea