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How is deficiency detected
Of the 45 children who were vitamin B12 deficient, most had delays in gross motor (93%), fine-motor (87%), language (62%), and adaptive-cognitive (80%) abilities
What they do not have is a body of controlled evidence showing that injecting them causes clinically significant weight loss independent of diet, exercise, and the rest of a supervised program
Insufficient B12 can damage the myelin sheath, leading to nerve degeneration and cognitive issues
increase by ~100150 mcg every 2 weeks as tolerated
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