The signs and symptoms of B12 deficiency that indicate you may benefit from vitamin B12 injections include: chronic fatigue, lethargy and weakness Muscle aches, joint pain and trouble exercising Poor memory, inability to concentrate and other cognitive problems associated with aging Mood changes, like increased depression and anxiety, or signs of nervousness like rapid heartbeats/palpitations Poor dental health, including bleeding gums and mouth sores Shortness of breath and feeling dizzy Poor appetite or digestive problems, like constipation, nausea, diarrhea or cramping Sometimes greater risk for problems like cardiovascular complications or even cancer (due to a rise in homocysteine levels) Why might you be low in vitamin B12, even if you eat a relatively healthy diet

Effects of intra-amniotic administration of the hydrolyzed protein of chia (Salvia hispanica L.) and lacticaseibacillus paracasei on intestinal functionality, morphology, and bacterial populations, in vivo (Gallus gallus)
E., Solter P
The sterile, preservative-containing solution dissolves powdered compounds cleanly without introducing contaminants, preserving the integrity of the reconstituted solution across multiple uses