Eating animal products typically gives your body more than enough of the nutrient, but there are particular groups of people more susceptible to a B12 deficiency
Absorption: Conditions like celiac disease, IBS, or pernicious anemia can affect how your body takes in B12
With low B12 levels, this process slows down and the fatigue patients experience is not just vague tiredness, but a measurable decrease in the amount of usable cellular energy the body is producing
Self-inject into your mid-thigh quadriceps for easy access and safety, or ask someone to inject into your deltoid/shoulder, and ensure you're reaching muscle tissue, not just subcutaneous fat, for optimal results
Some people with pernicious anemia can get enough B 12 into their systems by taking doses of 1 to 2 milligrams in pill form
Site numbers reported in one species should not be transferred to another without confirming sequence correspondence