side effects of too much b12 injections from Vitamin High Vitamin B12 Side Effects:

In the 12-week randomised controlled trial documented in the obesity pharmacotherapy literature, the 1 mg/day group achieved statistically meaningful separation from placebo

In practice a GP or nurse may administer off-licence by giving a sub-cutaneous (under the skin, SC) injection but it is important to remember that the GP makes their own decision and takes their own accountability and reliability if they go off-licence

Fortified breakfast cereals and plant-based milk alternatives offer options for those following vegan diets

Is it possible to do the trek without a guide or independently

Always discuss this and any other supplements you plant to take ahead of time with your doctor or other healthcare provider

Serious side effects are rare, but discontinue use and consult a healthcare provider if you experience severe allergic reactions, persistent injection site infections, or any concerning symptoms