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Your body needs B12 to create and maintain healthy DNAthe genetic material in all cells

Researchers might monitor cell morphology, gene expression changes, or biochemical markers such as oxidative stress indicators and extracellular matrix components

Synthesis and late-stage functionalization of complex molecules through CH fluorination and nucleophilic aromatic substitution

B12 from food and supplements has to pass through a fairly involved process in the stomach and gut before your body can use it, and that process becomes less efficient with age, with certain medications, and with diets that include little or no animal protein

The infrequent replacement of these cells results in their membranes accumulating oxidized lipids [5], such as lipofuscin, which can be used as an aging biomarker [27]