These include vitamin B12 deficiency and malabsorption that is caused by the following medical conditions, according to the NIH [1]: Pernicious anemia Tropical sprue Pancreatic insufficiency Surgery in the gastrointestinal tract Certain medications Deficiency in the diet Side effects of B-12 injections Also, according to the NIH, vitamin B-12 injections have some potential side effects, including [1]: Diarrhea Itching Swelling Risk of allergic reaction and anaphylaxis Can Vitamins Aid in Weight Loss
More studies are needed before such strong statements can be made
Common maintenance approaches include staying at the dose where you stabilized (often 1.0 to 1.7 mg), reducing by one dose level from your peak (e.g., from 2.4 mg to 1.7 mg), or finding the minimum dose that prevents weight regain while minimizing side effects
Patients may often experience an immediate energy boost from the B12 component, while the fat-metabolism benefits may develop over time [5]
Our course of action would typically involve modifying the formula to exclude potential additives and monitoring your subsequent treatments with heightened vigilance
Difficulty swallowing or breathing (anaphylaxis) is also possible