This prevents potential local interactions and makes it easier to identify the source of any injection site reactions
Similarly, another study found that hydroxo-B12 (1000 g i.m
You should always opt for stocking up on pure and efficient methylcobalamin-based B12, making sure to read the ingredients label carefully for any hidden nasties, and reach for a daily dose that will meet your requirements, plus some to ensure absorption (2000mcg weeky for adults under 65 should do the job just fine!)
Side effects Pain and swelling at injection site Skin rash Itching Swelling Muscle cramps Weakness Dizziness Difficulty in breathing Diarrhoea Headache Precautions and Warnings Pregnancy Your doctor may advise you oral supplements containing vitamin B12 and folic acid during pregnancy
I stopped taking it at that point and instead started using just one a month, which seemed like it gave me a small boost at high points in training
Swiss Medical Weekly 147, w14421