Published research (Stoeva MK et al., Gut Microbes, 2021) on Clostridium butyricum confirms it is a direct butyrate-producing organism in the gut
That's the mechanistic truth
BarbaroGDi LorenzoGSoldiniMParrottoSBellomoGBelloniGet alHepatic glutathione deficiency in chronic hepatitis C: quantitative evaluation in patients who are HIV positive and HIV negative and correlations with plasmatic and lymphocytic concentrations and with the activity of the liver disease
Furthermore, L-carnitine treatment was linked to improvements in testicular morphology and function, with a trend toward enhanced spermatogenesis, although not all parameters, such as sperm count, reached statistical significance
Pourmasoumi M, Hadi A, Marx W, Najafgholizadeh A, Kaur S, Sahebkar A