does b12 injections keep you awake Why do I feel worse after a injection? Do Vitamin B12 Shots Need

The body converts it to methylcobalamin and adenosylcobalamin so that it can be used

Conclusion To answer the original question directly: high B12 levels themselves don't typically cause symptoms

Prescription Only: Use only as prescribed and under medical supervision

The clinical evidence for NAD+ nasal spray specifically is still developing, even though the underlying NAD+ biology is well-established

[2] However, elevated MMA is not conclusive, as it is seen in people with B 12 deficiency, but also in elderly people who have renal insufficiency, [28] and elevated homocysteine is not conclusive, as it is also seen in people with folate deficiency

In summary, the fact that NNMT plays a role in a number of diseases/conditions makes development of NNMT inhibitors an important path to developing therapeutics to treat various diseases/conditions