A new study has argued that people who have developed type 2 diabetes and are taking the oral drug metformin to treat it should take more than the recommended daily allowance of vitamin B12.
The research, which was published in Diabetes Care, assessed data from the National Health and Nutritional Examination Survey (NHANES) in the United States between 1999 and 2006. The NHANES data showed that the prevalence of biochemical B12 deficiency was greatest for people with type 2 diabetes taking metformin compared with those with type 2 diabetes but not taking metformin and those without diabetes.
Biochemical B12 deficiency was revealed in 5.8 per cent of patients with diabetes that took metformin as compared to 2.4 per cent of those who did not take metformin and 3.3 per cent of people that did not have diabetes.
In the US, it is currently believed that adults with type 2 diabetes that are over 50 should take 2.4 µg of synthetic vitamin B12 daily either in supplement form or in fortified food.
Researcher Godfrey Oakley commented “It is important to conduct further research to learn how much B12 is needed to correct the deficiency and to determine whether or not raising serum B12 levels improves the clinical picture for persons taking metformin who have low serum B12 concentrations.”

Get our free newsletters

Stay up to date with the latest news, research and breakthroughs.

You May Also Like

Coronavirus: UK instructed to stay at home this weekend

Health Secretary Matt Hancock has said that staying at home this weekend…

Conversation about doctors’ appointments occurring virtually rumbles on

More than half of GP appointments are still being delivered remotely in…

Twice daily dairy intakes could reduce type 2 diabetes risk

Eating cheese, yoghurt or eggs twice a day could help lower the…