Physical Symptoms Individuals with vitamin B12 deficiency may experience weakness, tiredness, lightheadedness, heart palpitations, shortness of breath, pallor of the skin, numbness or tingling in the hands and feet, vision problems, and a smooth tongue
Questions about side effects or tolerability arise
Ever feel like you could sleep for a week and still wake up knackered
Can be used with any medication or supplement
Those most at risk include vegans and vegetarians, people with digestive conditions such as Crohn's disease, coeliac disease or IBS, those taking long-term metformin or proton pump inhibitors, older adults whose ability to absorb B12 through the gut declines naturally with age, those with pernicious anaemia, and anyone with a history of chronic alcohol use
For 200 mg vials, use 2 mL of bacteriostatic water to achieve a concentration of 100 mg/mL