Did You Know? Every time you move, your joints get a fresh dose of natural lubrication (synovial fluid), helping reduce stiffness and keep you feeling your best. Even a few minutes of Native biolubricants mucin and lubricin: Comparative study of lubrication origins, synergy lubrication and molecularly mimicked biolubricants ScienceDirect 14 Foods to Reduce Joint Pain UNC Cary Orthopaedics WATERY JOINT FLUID, WHICH OFTEN DEVELOPS AS PETS AGE, LEADS TO PAINFUL GRATING OF BONE UPON BONE.