When starting Vitamin B12 therapy, its not unusual for individuals to grapple with questions like, Feeling worse after my B12 injection, is that natural? This period, often termed as a healing crisis, can manifest through symptoms such as: Enhanced feelings of fatigue, tiredness, and increased sleep requirements Sensations akin to mild flu-like symptoms or body aches Experiences of headaches, nausea, or feelings of being lightheaded A foggy mind and challenges with concentration Mood fluctuations including irritability, anxiety, or a subdued mood Alterations in appetite and digestive patterns Contrary to being seen as an adverse reaction, these symptoms are essentially indicative of the body acknowledging and adapting to the surge of B12
In glycolysis, NAD+ accepts electrons during the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate, a reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase that generates NADH while enabling glucose catabolism to proceed
However, practical protocol design becomes significantly more complex with multi-compound stacks: you must isolate each compounds contribution, monitor for cumulative metabolic stress, and ensure endpoint measurements can differentiate between GH-mediated effects (lipolysis, lean mass changes) and AMPK-mediated effects (insulin sensitivity, fat oxidation)
For gut or systemic use, lower, consistent doses often work better than aggressive cycling