Vitamin B12 discussions

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Community post · Nov 11, 2026

Is low Vitamin B12 more common after weight-loss surgery?

Low Vitamin B12 became more common after weight-loss surgery, rising from 8.15% to 18.52% over 12 months. The study followed 135 people with obesity through their first year after surgery. Researchers measured [Vitamin B12](/biomarkers/nut

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Community post · Nov 3, 2026

How is Vitamin B12 made for use in supplements?

Manufacturers mainly use bacteria to make Vitamin B12, but low output remains a major production challenge. A 2026 review chapter explains how [Vitamin B12](/biomarkers/nutrients/vitamin-b12) is made at an industrial scale. It highlights w

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