Certain factors may put you at increased risk for B12 deficiencyincluding a vegetarian or vegan diet, specific medical conditions (such as Crohns or celiac disease, or a history of gastric surgery), and age over 50
Unlike oral supplements, injections bypass the digestive system, allowing nutrients to absorb more efficiently
You will not notice an energy boost immediately following the injection as the vitamin needs some time to start getting to work in the body to convert those food molecules, but you should notice increased levels of energy within a few days
With reduced cravings and improved portion control, achieving a calorie deficit becomes more achievable
You may notice that your tongue feels smooth and sore
doi: 10.3390/nu9070659 86