"Brain-gut Axis and Pentadecapeptide BPC 157: Theoretical and Practical Implications." Curr Neuropharmacol
The symptoms of vitamin B12 deficiency can be quite debilitating and include, according to scientific research: Chronic fatigue and weakness Shortness of breath Heart palpitations Tingling or numbness in the extremities Poor balance Loss of concentration and poor memory Disorientation Mood changes, including depression Insomnia Imagine trying to maintain a healthy, active lifestyle when you're constantly battling severe fatigue and low energy
Timeframe Considerations: The company notes that consistent use over several weeks is typical before users may notice changes, if any occur
When adverse effects occurred, they were typically mild and transient, with the most common being mild to moderate headaches (similar frequency to placebo groups), minor injection site reactions (redness, slight swelling), and gastrointestinal effects at higher oral doses (nausea, diarrhea)