This comprehensive guide breaks down the science behind GLP-1 injections versus GLP-1 pills , helping you understand the differences in results, daily management, and what is currently approved for use in the UK

Loading vs maintenance dosing protocols Loading phase dosing (Weeks 1-4): Why loading exists: Saturates tissue quickly Builds therapeutic levels fast Front-loads healing response Essential for good results Standard loading: 5mg twice weekly (10mg/week total) Days: Monday and Thursday (or Tuesday/Friday) 3-4 days between injections 4 weeks = 40mg total needed Aggressive loading (serious injuries): 7.5-10mg twice weekly (15-20mg/week) Used by athletes with major injuries Expensive but faster results 4 weeks = 60-80mg total Conservative loading (budget/prevention): 2.5mg twice weekly (5mg/week) Slower tissue saturation Takes longer to see results 4 weeks = 20mg total Maintenance phase dosing (Weeks 5+): Standard maintenance: 2-5mg once weekly Most use 2.5mg weekly Sustains therapeutic levels Continue 4-8 weeks after loading Why maintenance matters: Loading alone insufficient for deep healing Maintenance consolidates gains Prevents reinjury Keeps inflammation down Duration of maintenance: Minimum: 4 weeks Standard: 8 weeks Extended: 12+ weeks for chronic issues Total protocol examples: Standard 12-week protocol: Weeks 1-4: 5mg twice weekly = 40mg Weeks 5-12: 2.5mg once weekly = 20mg Total needed: 60mg (12 vials of 5mg) Cost: $540-$720 Aggressive 8-week protocol: Weeks 1-4: 7.5mg twice weekly = 60mg Weeks 5-8: 5mg once weekly = 20mg Total needed: 80mg (16 vials) Cost: $720-$960 FREE TOOLS FAQ What's the difference between TB-500 loading phase and maintenance phase

Duarte AI, Candeias E, Alves IN, Mena D, Silva DF, Machado NJ, Campos EJ, Santos MS, Oliveira CR, Moreira PI (2020) Liraglutide protects against brain amyloid- 1-42 accumulation in female mice with early Alzheimers disease-like pathology by partially rescuing oxidative/nitrosative stress and inflammation
In six instances, ASVs that had not been assigned a genus by DECIPHER mapped consistently to a genera and species across the BLASTn and BLCA methods
By acting on these hormone pathways, retatrutide may influence appetite, blood sugar regulation, energy balance, and metabolic function