3 Apr 2022

Getting enough water every day is important for overall health, but it also plays an important role in maintaining healthy joints.

While drinking more water is not a treatment for joint pain, proper hydration helps support the structures that allow joints to move smoothly and absorb everyday impacts.

What patients need to know

Water helps lubricate joints and tissues throughout the body.

It is a key component of synovial fluid, the thick liquid that cushions and lubricates joints, helping them move smoothly during everyday activities.

Proper hydration can support the production of synovial fluid, help maintain the shock-absorbing properties of cartilage, and contribute to healthy joint function.

How joints stay healthy

Cartilage is a strong and flexible tissue that covers the ends of bones where they meet to form a joint.

It serves two important functions:

  • Allowing bones to glide smoothly over one another during movement
  • Acting as a shock absorber during weight-bearing activities such as walking and jogging

Synovial fluid works alongside cartilage to keep joints functioning properly.

When a joint is at rest, synovial fluid is stored within the cartilage, much like water in a sponge. As the joint moves or bears weight, the fluid is released, helping to lubricate and protect the joint.

Are you drinking enough water?

The amount of water a person needs depends on factors such as body size, activity level, and environmental conditions.

For most people, thirst is the body's natural signal that more fluids are needed. However, thirst may become less reliable with age, illness, impaired cognition, or other factors that affect fluid intake.

For people who struggle to rely on thirst alone, simple strategies may help, including:

  • Drinking a large glass of water with each meal and snack
  • Carrying a water bottle and sipping regularly throughout the day
  • Including water-rich foods such as fruits and vegetables in the diet

Key takeaway

Staying hydrated supports many important functions throughout the body, including healthy joint function.

While drinking more water may not relieve joint pain, it can help maintain the lubrication, cushioning, and flexibility that joints rely on every day.