what is the difference between l-carnitine fumarate and arginate Vanadyl Sulfate L-carnitine: Health Benefits, Side Effects,
Description
Bala et al analysed and compared B-12 levels in ASD (n=34) [22], ADHD (n=16) and controls (n=27) and noted that the ASD group had the lowest vitamin B12 levels, whereas the vitamin B12 levels of the ADHD group were significantly lower compared to the controls

Pharmacol Rev 62:155198

Who Are the Best Candidates for B-12 Injections

Increased glutamate transporter-associated anion currents cause glial apoptosis in episodic ataxia 6

It may also be used for the vitamin B12 absorption test (Schilling test)

However, in the Indian subcontinent, viral hepatitis alone accounts for 90% of ALF [6]
