Symptoms Checker
The Symptoms Checker Service is currently not available as we update our website. The Checker can be found in Appendix 1 of Dr Chandy’s Book ‘B12 Deficiency in Clinical Practice‘ Please print out the form below if you want to continue monitoring symptoms. We are developing the service and will let you know when this comes online.
B12 Signs Symptoms Assessment
The table above is a printable version of the online app which allows you to enter your signs and symptoms and immediately read off your B12 deficiency status (in the boxes at the start and end). This service is being upgraded and will be included here in the future. In the meantime, please download use the chart.
It was developed by Dr Chandy over decades of caring for patients, and has been found to be extremely reliable. We recommend that you follow up with a blood serum B12 test; this means that you can document your B12 deficiency status (threshold 200ng/L); on the occasions when the table below indicates B12 deficiency and yet total blood serum B12 test returns a reading above 200ng/L, we have observed that the blood serum B12 levels will fall soon after. Total blood serum B12 is known to be a poor indicator of B12 deficiency status, and we are investigating a test for active-B12. See also the Symptoms pages