Fig. 5.

Relative abundance of a Bifidobacteriaceae, b Lactobacillus sorted by old- and young-age microbiota, comparing standard MNP and the low-iron MNP over baseline and endpoint time-points. Relative abundance was slightly higher at endpoint in standard MNP old-microbiome compared to low-iron MNP old-microbiome groups, both for Bifidobacteriaceae (p = 0.116) and Lactobacillus (p = 0.13); but statistically non-significant