![Dr Kasenene on Twitter: "Most people should start getting grey hair at about age 35. If you however are greying prematurely it could be a sign of vitamin B12 deficiency. Get it Dr Kasenene on Twitter: "Most people should start getting grey hair at about age 35. If you however are greying prematurely it could be a sign of vitamin B12 deficiency. Get it](https://pbs.twimg.com/media/EzEm3RAWEAEA7eQ.jpg)
Dr Kasenene on Twitter: "Most people should start getting grey hair at about age 35. If you however are greying prematurely it could be a sign of vitamin B12 deficiency. Get it
![Vitamin B12 deficiency: Hair loss and noticing more grey hair could be symptoms to spot | Express.co.uk Vitamin B12 deficiency: Hair loss and noticing more grey hair could be symptoms to spot | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/11/1200x712/1605651_1.jpg)
Vitamin B12 deficiency: Hair loss and noticing more grey hair could be symptoms to spot | Express.co.uk
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