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Older people tend to have lower amounts of stomach acid, which the body needs to absorb B12
While B12 injections are not a weight loss treatment, they can help boost energy levels and overall well-being, which may support weight management efforts when combined with a healthy diet and exercise
Supports the energy-producing structures inside cells during the high-stress repair window (mitochondrial-membrane stabilization)
Cochrane Database Syst Rev 2018
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