Thank you for your replies a few days ago. My grandson agreed to a private blood test but the first date available when he is not away with his sporting commitments is in November. He still refuses to see a doctor and we think that is because he thinks the doctor will end his sporting career. We would like him to take supplements till the end of the season in a hope he sees a difference in his performance and uses the off season to completely sort his deficiency and he has agreed to this but not too sure of what strength to get him. We are taking tiny steps as he is still adamant there is nothing wrong.
His results in April were b12 150 and folate 2.5.
We are assuming this has not improved As his diet has not changed even though he believes he eats healthy.
In a belief that you can’t overdose on b12 is 5000 a day safe and ok?
And what strength folate?