Fig. 8From: Distinct actions of the fermented beverage kefir on host behaviour, immunity and microbiome gut-brain modules in the mouseThe kefir-induced increased Lactobacillus reuteri strain has the potential to produce GABA. Spearman rank correlations between Lactobacillus reuteri abundances and levels of faecal 2-oxoglutarate, glutamate and succinate were performed (a). Faecal metabolite levels were quantified using chromatography–mass spectrometry (GC-MS). Flux variability analysis was used to assess whether L. reuteri can influence 2-oxoglutarate, glutamate and succinate levels (b)Back to article page