Hi, all-- A patient (who has early symptoms of Parkinson's) has been recommended to take 1400 mg of choline, 300 mg of serine, and 600 mg of inositol daily for myelin repair due to vit B12 deficiencies. However, we've heard that choline should be avoided for Parkinson's patients. Any suggestions or comments? Please email me. Thanks very much. Katherine Katherine Williams [log in to unmask] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ "The first step is to know the difference between a living body and a dead body."