long term effects of b12 injections How Do the Benefits Vitamin Last? Why Do I Feel Worse

The weight loss trajectory in trials followed a predictable pattern

Deficiency in Vitamin B12 is the most common as its not found in plant sources

Depending on what is in the injections you receive, you could experience the following: Allergic reaction Anxiety Constipation Diarrhea Fatigue Headache Increased heart rate Insomnia Nausea Vomiting It is of note that anxiety, an increased heart rate, and insomnia typically occur only after receiving injections that contain medications like phentermine

High-dose oral supplements (often 10002000 micrograms daily) or intramuscular injections (typically 1mg hydroxocobalamin) used to treat pernicious anaemia or deficiency states can temporarily elevate serum levels

Khanduri, U., & Sharma, A