how do i know if b12 injections are working Quickly Does Shot Work? Does It Help to Lose Weight? Feeling tired, foggy, or run-down?
Description
Some people, particularly those who were severely deficient, report a sudden improvement in energy, focus, or mood within 24 to 72 hours
Grall, A
This is a finding that should be investigated, not ignored
Journal of Endocrinology and Metabolism, 4(1-2), 87-95
