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However, MMA levels can be elevated in those with thyroid and kidney conditions, which limits the tests specificity (9, 10)

However, two practical interactions are worth noting for research protocols

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NAD+ precursors are studied for supplying metabolic substrates

Blog Posts: VITAMIN B 12: The Vitamin You Can't Afford to Be Deficient In The Best Iron Supplements Infographic Latest News: Vitamin B12 deficiency in pregnancy could pose a metabolic health risk, research suggests (study published on May 20, 2025)

It is also utilized in gastrointestinal repair