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Institute for Quality and Efficiency in Health Care (IQWiG)
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Vitamin B12 deficiency guidance in Germany
2 clusters · 9 sources · last updated
Latest: Vitamin B12 deficiency symptoms and supplementation guidance clarified
The first snapshot (3 August 2026) outlines the role of vitamin B12, typical deficiency symptoms, at‑risk groups such as vegans and older adults, and notes that supplementation is not always necessary because the liver s