This app can help you to determine whether you are at risk of Vitamin B12 deficiency, This condition can cause debilitating symptoms which can be completely reversed with the correct treatment. There are many causes and it is sadly, commonly misdiagnosed due to a lack of knowledge amongst health professionals. This app will direct you to a 'What to do Next' page on the www.b12deficiency.info website to help you to take the next step in achieving diagnosis and treatment. It has been created by a sufferer of B12 deficiency. The content has been provided with kind permission of Sally M. Pacholok R.N. & Dr. Jeffrey J. Stuart, authors of 'Could It Be B12? An Epidemic of Misdiagnoses'. By entering your age you will be directed to click on symptoms/conditions which apply to you. Please note: If you are under 18 you will be automatically directed to 'child specific' criteria which naturally has some particular differences to the over 18 criteria. The app will show you your risk result LOW, MODERATE or HIGH. Please Note: A HIGH risk will require further investigation and the app will forward you to further help and information on What to do Next please TRY NOT to supplement with B12 before medical testing is carried out as this can skew your blood results and you may remain undiagnosed.