Common Side Effects When side effects occurred, they were typically mild, transient, and similar in frequency to placebo groups: Reported Adverse Effects Most Common (occurring in small percentage of participants): Mild to moderate headaches (most frequently reported, often resolving with continued use) Injection site reactions (minor redness, swelling, or irritation at injection site) Gastrointestinal effects (particularly at higher oral doses: mild nausea, diarrhea, flatulence) Fatigue (reported occasionally during initial adaptation period) Rare Events: One case of chest tightness was deemed possibly related to treatment in safety trials
It also plays a vital role in neurological function, mood regulation, and metabolism
Since vitamin B12 is derived from animal-based sources, individuals who do not eat meat or animal byproducts can experience deficiencies if they do not use supplemental sources
Some common symptoms are: Low energy levels Trouble focusing Feeling more irritable Light shortness of breath Getting tired earlier in the day These symptoms can differ for everyone, but if they show up near the end of your dose cycle, increasing the frequency might help
