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Delayed Treatment: Vitamin B12 deficiency left untreated for longer than 3 months may cause permanent spinal cord and nerve damage
They can make you feel more active, which might help you stick to your workouts or stay on track with your health goals
The search included meta-analyses, randomized controlled trials, clinical trials, and reviews
Mild nausea and digestive discomfort Some users report mild nausea, particularly when injecting on an empty stomach first thing in the morning
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