does kombucha have glutathione Kombucha: Polyphenols, Probiotics, and the Functional Nutrition Potential Living in Gratitude
Description
The data indicate that chemical cysteine oxidations were rare events

Professional research requires a more nuanced approach

Janku F, Huang HJ, Claes B, Falchook GS, Fu S, Hong D, Ramzanali NM, Nitti G, Cabrilo G, Tsimberidou AM, Naing A, Piha-Paul SA, Wheler JJ, Karp DD, Holley VR, Zinner RG, Subbiah V, Luthra R, Kopetz S , Overman MJ, Kee BK, Patel S, Devogelaere B, Sablon E, Maertens G, Mills GB, Kurzrock R, Meric-Bernstam F

Older horses or those that are heavily exercised would likely benefit from additional MSM for comfort and optimal performance
