Tryptophan oxidation is the degradation route most commonly detected by RP-HPLC in stored melanocortin analogues, with tyrosine at position 2 and histidine at position 6 secondary sites of concern, and freeze-thaw cycling accelerates both aggregation and oxidative degradation
Hitting protein targets of 1.21.6 g/kg/day ( 0.540.73 g/lb/day) and performing resistance training 23 per week helps preserve and even build lean mass

Abbreviations 1MT: 1-methyl-tryptophan 3HAA: 3-hydroxyanthranilic acid 3HK: 3-hydroxykynurenine 5-HT: Serotonin 7nAChRs 7: nicotinic acetylcholine receptors AHR: Aryl hydrocarbon receptor AMPAR: -amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor BBB: Blood brain barrier BCG: Bacile Calmette-Gurin BDI-II: Beck Depression Inventory, 2nd edition BDNF: Brain-derived neurotrophic factor BSSI: Beck Scale for Suicidal Ideation CDRS-R: Childrens Depression Rating Scale-Revised CNS: Central nervous system ESBA: (S)-4-(ethylsulfonyl)benzoylalanine GBA: Gut-brain axis HAMD: Hamilton Depression Rating Scale HPA: Hypothalamic-pituitary-adrenal IDO: Indoleamine 2,3-dioxygenase KAT: Kynurenine aminotransferase KMO: Kynurenine 3-monooxygenase KP: Kynurenine pathway K-SADS-PL: Schedule for Affective Disorders and Schizophrenia for School-Age Children KYN: Kynurenine KYNA: Kynurenic acid LDH: Lactate dehydrogenase LPS: Lipopolysaccharide LSD: Lysergic acid diethylamide MDD: Major depressive disorder NMDAR: N-methyl-D-aspartate receptor NO: Nitric oxide PA: Picolinic acid QA: Quinolinic acid ROS: Reactive oxygen species SCFA: Short-chain fatty acids SSRI: Selective serotonin reuptake inhibitor TBI: Traumatic brain injury TDO : Tryptophan 2,3-dioxygenase TRP: Tryptophan UCMS: Unpredictable Chronic Mild Stress References Cipriani A, Furukawa TA, Salanti G, Chaimani A, Atkinson LZ, Ogawa Y, et al

In essence, it stops additional fat loss when your calorie intake and expenditure are in balance
For people who get sick often or have weak immune systems, this can be a game-changer