sleepy after b12 injection I still feel tired sleeping 8-9hrs : r/Biohackers why do i feel so

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

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B12 injections bypass the digestive system for maximum absorption, giving you an immediate energy boost that lasts

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Beyond just energy, B12 can also support a more stable mood and may even help with symptoms of depression

Malabsorption issues due to gastrointestinal conditions