You may feel a quick pinch, but discomfort is minimal and only lasts a second
While concerning, the anecdotes of harm coming to vegans by relying on multivitamins have too many uncertainties to cause us to change the methodology we use for our recommendations
doi:10.1111/j.1365-2036.2011.04620.x 12Mansfield JC, Giaffer MH, Cann PA, et al
You can always consult your physician before beginning any therapy program
Monitor closely for hypothalamic amenorrhea, a condition where excessive energy deficit suppresses the hypothalamic-pituitary-gonadal axis
Your body uses it for a few important jobs: Making red blood cells, which carry oxygen and keep your energy up Turning the food you eat into usable energy, which supports your metabolism Keeping your nerves healthy and preventing tingling or numbness Supporting mood, focus, and mental clarity A shot delivers B12 straight into the muscle and bloodstream, so it skips the digestive system entirely