headache after b12 injection Why do I feel worse a injection? Common & Rare Side Effects

During the course of the study, there was no change to the therapeutic regime other than the introduction of parenteral cobalamin supplementation

It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, and alterations and modifications in the illustrated invention, and further applications of the principles of the invention as illustrated therein are herein contemplated as would normally occur to one skilled in the art to which the invention relates

And last but not least, what should you say to all the people who say you see, thats why veganism is not natural, because you cant survive without those supplements?

As body weight reduces, facial fat may reduce as well

Brain 135 , 17511766 (2012)