They are not to be used for any human or veterinary purposes
Without adequate intake of B12, vegans can easily develop deficiency over time, leading to symptoms such as fatigue, weakness, constipation, loss of appetite, weight loss, and nerve problems therefore the researchers recommend that vegans and vegetarians should add vitamin B12 to their diet by eating fermented foods, particular types of mushroom that contain the vitamin and B12-enriched vegetables
But including foods high in these vitamins (like whole grains, meats, eggs, dairy, leafy greens, nuts) as tolerated can help maintain levels once the course of injections is over
Production of gastric acid and intrinsic factor by the specialized parietal cells in the stomach is critical for B12 absorption to occur
If you are pregnant, nursing, under 18, taking medications or have a medical condition, please consult your healthcare practitioner before use