Other populations at risk include people who had gastrointestinal surgery (including weight loss surgery) and diseases that affect the gut, such as Crohn's disease or celiac disease
Book Your Vitamin B12 Injection at Skin and Drip London Book Your Vitamin B12 Injection at Skin and Drip London If you are feeling persistently tired, weak, or have been told your vitamin B12 levels are low, Skin and Drip London Clinic can help

If B12 deficiency is contributing to your hair loss, heres a realistic timeline for improvement: First 24-72 Hours (After Injection) Energy levels often improve noticeably Mental clarity may begin to return Some people report immediate mood improvements First 1-2 Weeks Fatigue and weakness typically continue to improve Sleep quality may get better Neurological symptoms like tingling may begin to ease 4-6 Weeks Hair shedding often starts to slow Scalp health may improve 3-4 Months Visible new hair growth may become apparent Hair grows at approximately 1cm per month, so patience is essential Existing hair may feel stronger and healthier 6-12 Months Significant improvement in hair density (if B12 was a contributing factor) Hair follicles have had time to complete full growth cycles Long-term benefits become established Important note: Results depend on B12 being a genuine contributor to your hair loss

You said she is autistic, just an idea You could inject in each leg for each injection but in the same muscle area so then it may feel more comfortable and the area should not hurt
A deficiency can result in beriberi , which manifests as fatigue , weakness , and peripheral neuropathy
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