Spiralyne spirulina tablets are rich in Vitamins B12. A recent study has shown Vitamin B12 may prevent memory loss. Read more at: http://www.foxnews.com/health/2011/09/23/study-finds-vitamin-b12-may-prevent-memory-loss/ Share : PreviousSpirulina reduces ageing of the brain NextPhenylalanine may help cheer you up.