maximum strength one-a-day b 12 (methylcobalamin) at 1000µg, popular choice for those on plant-based diets, great choice if you’ve been told you’re short of b 12 like most b vitamins, vitamin b 12 (also known as cobalamin) plays an important role in immunity, energy release & red blood cell formation. since this vitamin is predominantly found in animal-based foods, such as meat, fish, & dairy, nutritionists often recommend a vitamin b 12 supplement to vegetarians & vegans. in the uk low vitamin b 12 status is around 6% in people aged less than 60 years, rising to 20% in those aged over 60 years & around 11% for those on plant-based diets. since our ability to absorb b 12 declines as we age, a supplement is a useful insurance policy, especially for the over 70s, who may have a compromised diet. this is our highest strength & most popular vitamin b 12 supplement, with each one-a-day tablet providing a generous 1000µg. we’ve chosen to formulate our vitamin b 12 supplement in small, easy to swallow tablets – not capsules – since this material can deliver highly concentrated levels of vitamin b 12 in a convenient dose. our formulation uses the methylcobalamin form of vitamin b 12 as a natural alternative to the more commonly used synthetic form, cyanocobalamin. we source the best ingredients from suppliers with an excellent reputation for quality. our maximum strength, raw material undergoes rigorous quality checks before being manufactured & packaged in uk factories to good manufacturing practice (gmp). this product is suitable for both vegetarians & vegans. still unsure if this formula is the right choice for you? drop a line to one of our expert nutrition advisors//aadvice//class=f-brand!important who can help you pick from our extensive product offerings. you can read more about vitamin b levels here//b 106//class=f-brand!important. what may vitamin b 12 contribute to? vitamin b 12 contributes to normal energy metabolism, the reduction of tiredness & fatigue, the normal function of the immune system, & normal psychological function. it also contributes to normal red blood cell formation, the normal function of the nervous system, & the maintenance of normal levels of the amino acid homocysteine in the blood.