People with Chronic Fatigue or Low Energy Vitamin B12 injections can provide a significant energy boost for these individuals
(PubMed) Meister R, von Wolff A, Mohr H, et al
The main goal is preventing problems (like anemia, neuropathy, etc.) that would occur if you were low in these vitamins
22, n o 6, 343352 (ISSN 0263-6484, PMID 15386533, DOI 10.1002/cbf.1149, lire en ligne, consult le Nutrition Reviews 54: 130, 1996 Clinical Science 91: 575582, 1996 American Journal of Medical Science 307: 119127, 1994 Gut 42: 492, 1998 American Journal of Gastroenterology 91: 25692573, 1996 Nephron 61: 404408, 1992 Early Human Development 37: 167174, 1994 (en) Hinson JA, Andrews LS, Gillette JR., Kinetic evidence for multiple chemically reactive intermediates in the breakdown of phenacetin N-O-glucuronide