Nicoletto RE, Ofner CM 3rd
Meta-analyses generally find little improvement in strength or physical function, and measured "lean mass" can partly be fluid retention, not functional muscle
Luc van Loon discusses collagen's effects on muscle, cartilage, peptide absorption, and potential skin and joint benefits
Seek prompt medical advice if you experience: Severe or rapidly worsening joint pain that significantly impairs function or mobility A hot, swollen, very painful joint with fever this could indicate septic arthritis requiring SAME-DAY emergency hospital assessment Symptoms of severe allergic reaction after B12 injection (breathing difficulty, facial/tongue swelling, widespread hives, dizziness/collapse) call 999 immediately Systemic symptoms such as unexplained weight loss, night sweats, or profound fatigue Neurological symptoms including weakness, numbness, balance problems, or cognitive changes Symptoms affecting multiple joints simultaneously, particularly if symmetrical (both hands, both knees) Morning stiffness lasting more than 30 minutes , which may suggest inflammatory arthritis Your GP will conduct a thorough clinical assessment, including detailed history-taking and physical examination
I can trace my symptoms back over 40 years though as you say - they did rather snow ball in the last few years
