B12 deficiency on its own leads to memory loss, cognitive decline, depression, constipation, diarrhea, nerve damage / numbness, sore tongue, insomnia, fatigue, abdominal discomfort, easy bruising / anemia, and and memory problems
A Guide to the Best Needles for B12 Injections Nearly 40% of Americans are deficient in vitamin B12
Possible Side Effects Potential side effects include: Nausea Vomiting Diarrhea Headache Fatigue Weakness Loss of appetite A tingling sensation in the feet or hands Redness, swelling, or bruising at the injection site In the event you feel you are in imminent danger or have signs of an allergic reaction, you should contact emergency services immediately
The psychology of the peptide space is also worth noting, as it ties into how wellness and body optimization can be gendered