size of needle for b12 injection | B12 Syringes A Guide to Needle and

Most people start noticing the benefits, like increased energy or changes in their metabolism, after about three to four weeks of consistent injections

Give it time to work

The signs and symptoms of vitamin B12 deficiency may include: fatigue difficulty thinking and remembering infertility heart palpitations pale skin dementia weight loss numbness and tingling in the hands and feet mood changes constipation a sore tongue low appetite Many people are unclear about precisely what these vitamins do despite vitamin B12 being so important for the bodys healthy function

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Disclaimer This content is for informational purposes only and is not a substitute for medical advice

If you experience severe or persistent side effects, contact your GP or NHS 111 for advice