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The most common sites for B12 injections are the deltoid (upper arm), vastus lateralis (outer thigh), ventrogluteal (hip), abdomen, and outer upper arm for subcutaneous injections

Ogru, R

Thats why theyre often recommended by GPs and pharmacies when deficiency symptoms are noticeable

Many patients report feeling less mentally foggy and experiencing enhanced mood, as B12 plays a crucial role in neurotransmitter synthesis and myelin formation

The combination is most useful for patients with one or more of the following: BMI of 30 or higher , or BMI 27 with at least one weight-related condition such as type 2 diabetes, hypertension, or sleep apnea History of fatigue, low mood, or brain fog on previous diets or weight loss attempts Metformin use for type 2 diabetes or pre-diabetes (chronic metformin reduces B12) Long-term proton pump inhibitor use such as omeprazole, pantoprazole, or lansoprazole Vegetarian or vegan diet with limited animal protein intake Adults over 50 , where B12 absorption naturally declines Active strength training or higher physical demands while on a calorie deficit Patients who dont fit any of these profiles can still take semaglutide alone, then add B12 if symptoms suggest it

How to find out if you have low vitamin B12 It's important to see your GP if you have concerns