is glutathione naturally produced in the body 8 Ways to Boost Protecting Your Inner Environment: Why

Low glutathione levels detract from your good healthsymptoms include fatigue, lower energy, achy head and joints, and a foggy brain, among other issues

Data are presented as the mean SD of three or four biological replicates in three or four independent samples

Plasma total homocysteine and cysteine levels as cardiovascular risk factors in coronary heart disease

Possibilities include: fecal SCFA levels (as an indicator of beneficial fermentation), serum TMAO (marker of detrimental microbial metabolism), gut permeability assays (like urinary sugar tests or blood zonulin) to gauge gut barrier integrity, and even gut microbial gene profiles that might predict rapid vs slow disease progression