Osteoarthritis doesn’t have a cure, but the right combination of movement, weight management, and targeted treatments can significantly reduce pain and keep you functional for years. The most effective approach isn’t any single therapy. It’s layering several strategies together, starting with the ones that carry the least risk and building from there.
Exercise Is the Single Most Effective Treatment
Physical activity is the foundation of osteoarthritis management, and it’s one of the few interventions that consistently improves both pain and function. That can feel counterintuitive when your joints hurt, but the evidence is overwhelming: regular exercise strengthens the muscles that support your joints, improves range of motion, and reduces stiffness. Avoiding movement tends to make things worse over time.
The best program combines resistance training with some form of aerobic exercise. In an eight-week trial of people with knee osteoarthritis, all groups that paired resistance training with aerobic activity (whether on a treadmill, stationary bike, or arm ergometer) showed significant improvements in pain scores and functional tests. Treadmill walking produced the greatest gains in mobility, while upper-body aerobic work provided slightly more pain relief. The takeaway: the specific type of aerobic exercise matters less than doing it consistently alongside strength work.
If you’re starting from a sedentary baseline, low-impact options like swimming, cycling, or water aerobics let you build capacity without hammering your joints. Aim for at least 150 minutes of moderate activity per week, and include two or three sessions of resistance exercises targeting the muscles around the affected joint. A physical therapist can design a program matched to your current ability level, which is especially useful if pain has been keeping you inactive.
Why Weight Loss Has an Outsized Impact
Every pound of body weight you lose removes roughly four pounds of force from your knee with each step. That math adds up fast. A 10% reduction in body weight (about 20 pounds for someone weighing 200) produces measurable improvements in pain, physical function, and quality of life while also lowering joint loads and inflammatory markers. Losses below that threshold still help: the American College of Rheumatology strongly recommends at least a 5% reduction for people with overweight or obesity and notes that benefits keep climbing as you lose more, with meaningful gains at 5 to 10%, 10 to 20%, and beyond 20% of body weight.
Weight loss works through two channels at once. It directly reduces the mechanical stress on weight-bearing joints like hips and knees. It also lowers systemic inflammation, which contributes to cartilage breakdown and pain signaling. Combining a calorie-reduced diet with the exercise program described above gives you the best shot at sustained results.
What to Eat (and What to Skip)
No single food will fix osteoarthritis, but your overall dietary pattern influences inflammation levels throughout your body. The two best-studied approaches are the Mediterranean diet and the DASH diet. Both emphasize whole foods, plenty of vegetables and fruits, healthy fats from olive oil and nuts, and lean protein from fish and legumes. Both minimize red meat, added sugars, and ultra-processed foods. These patterns don’t just reduce joint inflammation; they also improve cardiovascular health and may extend longevity, which matters because osteoarthritis is a long-term condition.
You don’t need to overhaul your diet overnight. Swapping processed snacks for whole foods, cooking with olive oil instead of butter, and eating fish twice a week are practical starting points that shift your intake in an anti-inflammatory direction.
Topical and Oral Pain Relief
When exercise and weight management aren’t enough on their own, anti-inflammatory medications can help bridge the gap. Topical versions, applied directly to the skin over the painful joint, deliver the active ingredient locally with far less absorption into the bloodstream. Studies comparing topical and oral forms show comparable pain relief, but the topical route causes significantly fewer gastrointestinal side effects, particularly stomach bleeding. For joints close to the surface like knees and hands, a topical anti-inflammatory gel is a reasonable first choice.
Oral anti-inflammatories remain effective for more widespread pain or for deeper joints like the hip, where topical delivery is less practical. The tradeoff is a higher risk of stomach irritation and, with prolonged use, potential effects on kidney function and blood pressure. Using the lowest effective dose for the shortest necessary period is the general principle. Acetaminophen is a milder alternative that can help with pain, though it doesn’t address inflammation directly.
Joint Injections: What Actually Works
Corticosteroid injections deliver a potent anti-inflammatory directly into the joint. They tend to work quickly, often within days, but the relief typically lasts only a few weeks to a few months. They’re most useful for flare-ups or when you need a window of reduced pain to start physical therapy or ramp up exercise.
Hyaluronic acid injections (sometimes called viscosupplementation) take longer to kick in but may provide relief lasting several months or longer. They work by supplementing the joint’s natural lubricating fluid. Some people respond well, others notice little difference, and the evidence is mixed enough that guidelines vary on how strongly to recommend them.
Platelet-rich plasma (PRP) injections have gained traction in recent years. A meta-analysis of randomized trials found PRP outperformed saline placebo for both pain and function, especially in longer-term follow-up. Mayo Clinic data shows roughly a 60% to 70% chance of at least 50% improvement in pain and function lasting 6 to 12 months. PRP also appears to outperform hyaluronic acid in most studies and, while steroid injections may work faster in the first month or two, PRP tends to surpass steroids by the three-to-six-month mark. It’s worth noting that PRP is typically not covered by insurance.
Stem Cell Injections: Proceed With Caution
Stem cell therapy, often marketed as bone marrow aspirate concentrate (BMAC), is heavily advertised but poorly supported by evidence. In a controlled trial where one knee received BMAC and the other received saline, researchers found no difference in pain scores at six months. Two additional randomized trials comparing BMAC to PRP found no advantage for BMAC at either 12 or 24 months. Despite aggressive marketing claims, there is currently no strong evidence that stem cell injections regenerate cartilage or outperform less expensive alternatives.
Glucosamine and Chondroitin: The Supplement Question
Glucosamine and chondroitin are among the most commonly purchased joint supplements, but the latest evidence is not encouraging. A 2024 systematic review and meta-analysis looked at whether adding these supplements to an exercise program improved outcomes compared to exercise alone. The results were clear: glucosamine, with or without chondroitin, added no statistically significant benefit for knee pain, physical function, or joint space narrowing. Earlier trials had shown similarly disappointing results, with no meaningful differences between supplement and placebo groups in pain, function, or mobility measures.
Some people report subjective improvement, which may reflect a placebo response or natural fluctuation in symptoms. These supplements are generally safe, so taking them isn’t harmful, but spending that money on a gym membership or physical therapy sessions is likely to produce better returns.
Braces, Assistive Devices, and Other Supports
A well-fitted knee brace or sleeve can reduce pain during activity by improving joint alignment and providing compression. Unloader braces, which shift weight away from the damaged part of the knee, are particularly helpful for people whose osteoarthritis affects mainly one side of the joint. Canes, walking poles, and shoe insoles are simple tools that reduce joint loading during daily activities. Using a cane in the hand opposite your affected knee can reduce hip and knee forces by up to 10%.
Occupational therapists can recommend hand splints and adaptive tools for people with hand osteoarthritis, making tasks like opening jars or turning keys less painful.
When Joint Replacement Becomes the Right Call
Joint replacement surgery is not a first-line treatment, but it’s a highly effective one when conservative measures have been exhausted. The typical criteria that signal it’s time to seriously consider surgery include knee or hip pain that hasn’t responded to anti-inflammatory medication for six months or more, pain that prevents you from sleeping through the night, inability to walk more than three blocks, and inability to work because of joint pain. Decreased function that limits daily activities despite other treatments is another clear indicator.
Modern joint replacements last 15 to 25 years for most people, and the surgery has become one of the most reliable procedures in orthopedics. Recovery typically involves several weeks of reduced activity followed by months of physical therapy, but most people return to walking, cycling, swimming, and other low-impact activities with dramatically less pain than before surgery.