is oral replacement better than injectable b12 Vitamin Injections Vs Medication Vitamin B12 Injection Dosage for

Copper is involved in melanin synthesis (hair pigmentation) and is a cofactor for enzymes involved in keratin cross-linking

Avoid administration during or immediately after intense exercise

1991;265(1):945 Accessed May 27, 2018

So, because he doesn't believe it was an issue in my TN he never bothered about it, or any of the other poor blood markers

When adverse effects occurred, they were typically mild and transient, with the most common being mild to moderate headaches (similar frequency to placebo groups), minor injection site reactions (redness, slight swelling), and gastrointestinal effects at higher oral doses (nausea, diarrhea)

117119 Vitamin B 12 deficiency signs and symptoms appear to be very similar to diabetic neuropathy and are considered to be clinically indistinguishable (Box 2)