This hypothesis has been supported by studies in mice, rats, and non-human primates, demonstrating -syn propagation from the periphery to the central nervous system (CNS) and vice versa, as well as from the brain to other organs (Luk et al., 2012
doi: 10.3389/fimmu.2020.602589 Received 10 September 2020 Accepted 21 December 2020 Published 04 February 2021 Volume 11 - 2020 Edited by Stphane Ranque, Aix-Marseille Universit, France Reviewed by Marielle C
How to implement: Dosing: 20-40 grams daily (post-workout or as snack) Choose undenatured whey (cold-processed, preserves bioactive peptides) Whey protein isolate (higher protein content, lower lactose) Best sources: Grass-fed whey isolate : Highest cysteine content Undenatured whey concentrate : Preserves immunoglobulins and glutathione precursors Avoid heat-treated : Heat denatures cysteine Timing: Post-workout (supports muscle recovery + glutathione synthesis) Morning (with breakfast) For vegans: Pea protein isolate : Lower in cysteine but can be paired with NAC Hemp protein : Moderate cysteine content Evidence: A randomized trial found that 20 grams of whey protein daily for 3 months increased lymphocyte glutathione by 35% and improved immune markers in HIV patients [15]
When you ask if you can take these two together, the follow-up question should always be: How do I ensure they actually get into my cells
