MUC5AC and hyperinsulinemic hypoglycemia, familial, 4: Among all the taxa analyzed, Akkermansia muciniphila, a mucin‐degrading, SCFA‐producing species of Verrucomicrobia (Derrien et al. 2004), showed the greatest increase in relative abundance due to Se deficiency (22‐fold) and a 6‐month age increase (38‐fold) in males, compared to Se‐adequate telomere‐humanized mice aged 18 months.