Joint supplements work better than the cynics claim and worse than the marketing implies. Most importantly, they don't all work for the same problem. Here's how to match the supplement to the actual joint pattern — and where to stop spending and start moving.

Who this is for

If you have early osteoarthritis, particularly knees or hands; if you wake stiff and need 20 minutes to loosen up; if a former injury is finally telling you about itself; if you're an active 40-something or 50-something noticing the recovery isn't what it used to be — this is for you. Acute joint injuries need a physiotherapist, not a supplement shelf. Inflammatory arthritis (rheumatoid, psoriatic) needs a rheumatologist.

The short version

• Collagen peptides 10–15 g daily — the most up-to-date evidence for cartilage support.
• Glucosamine sulphate 1500 mg daily — works in roughly half of users, give it 3 months.
• Turmeric (curcumin with piperine or phosphatidylcholine) 500–1000 mg curcuminoids daily — for inflammation.
• Omega-3 2–3 g EPA+DHA — anti-inflammatory effect across the body.
• MSM 1500–3000 mg daily — often paired with glucosamine.
• Vitamin D3 — low D worsens joint pain.

Collagen peptides — the modern foundation

The old joint stack was glucosamine and chondroitin. The new joint stack leads with hydrolysed collagen peptides (sometimes called collagen hydrolysate). Recent studies show 10–15 g daily improves joint comfort and supports cartilage matrix. The mechanism: collagen peptides signal cartilage cells (chondrocytes) to upregulate collagen synthesis.

Bovine and marine sources both work. Bovine is cheaper and more common. Marine is gentler if you have gut sensitivities. Take it any time of day — adding it to morning coffee is a popular habit. Vitamin C taken with it supports collagen synthesis.

Glucosamine — still useful, for the right user

Glucosamine sulphate at 1500 mg daily has 25 years of mixed-but-real clinical evidence for knee osteoarthritis. It works for about half of users. Glucosamine hydrochloride (the cheaper form) has weaker evidence than the sulphate form — read the label.

Give it 12 weeks. If there's no difference, stop. Often combined with chondroitin (which has weaker evidence but no harm) and MSM (which has modest evidence).

Turmeric/curcumin — inflammation

Curcumin (the active compound in turmeric) is genuinely anti-inflammatory at doses around 500–1000 mg/day of curcuminoids. The problem is absorption — straight turmeric is mostly excreted. You want a curcumin extract with piperine (black pepper, boosts absorption 20×), phosphatidylcholine (Meriva), or a liposomal formulation. The cheapest turmeric capsule on the shelf is usually a waste.

Don't combine high-dose curcumin with blood thinners (warfarin, apixaban) without medical input — it has mild anti-platelet activity.

Omega-3 — anti-inflammatory baseline

Fish oil at 2–3 g of combined EPA+DHA is broadly anti-inflammatory and supports joints, cardiovascular, and brain. Choose a brand with third-party purity certification — fish oils vary widely in quality. Vegan? Algal omega-3 works equally well.

MSM — the supporting player

Methylsulphonylmethane (MSM) at 1500–3000 mg daily has modest evidence for joint pain reduction. Often combined with glucosamine. Stand-alone evidence is weaker than collagen or curcumin. Worth trying if the foundation isn't quite enough.

Vitamin D — the often-missed factor

Vitamin D deficiency worsens joint pain and inflammation. If you haven't had levels checked, get them done. 4000 IU daily brings most South Africans to optimal within 3 months.

What's overhyped

• Hyaluronic acid oral supplements — interesting topical/injection evidence, weaker oral evidence.
• Boswellia at low doses — works at proper dose (>200 mg AKBA), often under-dosed in blends.
• 'Bone broth for joints' — fine food, modest effect compared to dosed collagen peptides.
• Random 'joint blends' with 12 ingredients — usually under-dosed across the board.

What supplements can't fix

Loaded muscles support joints. If your quads are weak, no amount of glucosamine will save your knees. The single highest-impact intervention for joint health in middle age is not a supplement — it's strength training, twice a week, gently progressing. A good physio or biokineticist is worth ten supplement bottles. Use supplements to support the work, not replace it.

Red flags

Joint swelling with heat and redness; joint pain with fever; sudden severe joint pain in one joint; morning stiffness lasting more than 90 minutes; symmetrical joint pain in small joints (hands, feet); family history of rheumatoid or psoriatic arthritis — these need a rheumatologist or GP, not a supplement shelf.

Your Onelife shortcut

Education, not medical advice. Joint pain that's new, severe, or accompanied by red-flag symptoms deserves a clinician. Supplements interact with blood thinners and immune-modulating medications. Always disclose what you're taking.