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Vitamin B12 deficiency
Protein Is Non-Negotiable Rapid weight loss without adequate protein leads to muscle loss, which tanks your metabolism and makes long-term maintenance harder
In addition to boosting energy and mood, B12 injections can aid in weight management by supporting metabolism, and they promote healthy skin, hair, and nails through collagen synthesis
The dermal papilla cell experiments confirmed the mechanism
Energy tends to respond first, mood and focus follow within a week or so, and the longer-term, structural benefits build quietly over months
Patients with severe, longstanding deficiency typically require longer recovery periods, with haematological improvement occurring over weeks and neurological recovery potentially taking months
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