The pilot data from liraglutide provides the rationale, and the mechanistic evidence supports the biological plausibility
Biogenic Foods Description Description Components & Typical Quantities (custom blends may vary): DSIP: 10mg Total Peptide Content: 10mg lyophilized powder Form: Lyophilized Peptide Purity: 98% (HPLC Verified) Product Overview: DSIP acts as a neuromodulator of the sleep-wake cycle and stress response
However, it also turns out to be true that, under normal conditions, dietary intake of glutathione does not allow its direct use: since it is a tripeptide, enzymes in the gastric juices would break it down into its constituent amino acids, forcing our body to consume energy to synthesize it from scratch
For background on how to interpret peptide research literature, see our peptide glossary, which defines terms such as EC50, receptor affinity, and bioavailability