Size
Doctor's Best Vegan Glucosamine with GreenGrown
Doctor's Best's Vegan Glucosamine with GreenGrown — 1500mg per serving, 180 vcaps a bottle.
What it is
- GreenGrown glucosamine, fermented from corn rather than taken from shellfish
- Glucosamine is a building block of cartilage
How to use
Take as directed on the pack. Joint formulas are normally taken daily over a longer run rather than as a one-off.
Good to know
- Format: vcaps
- Caffeine free
- Suitable for vegans
- Vegetarian-friendly capsule shell
A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.
At a glance
£0.23
per daily dose
Limited
evidence for glucosamine
Our honest take
A vegan glucosamine made from a plant source (GreenGrown) rather than shellfish, giving 1,500 mg in two capsules a day for about 23p a day. That makes it the simplest, best-value choice if you are vegan or allergic to shellfish and want to try glucosamine. The usual catch applies: large independent trials found little benefit over a dummy pill for most people, and there is no authorised health claim.
- You are vegan or vegetarian and want a plain glucosamine at the studied dose
- You are allergic to shellfish
- You take medicine for diabetes or blood thinning, or are pregnant or breastfeeding: check with your doctor first
- You are under 18
The science
Glucosamine· evidence: Limited
Glucosamine is a building block of cartilage. In supplements it comes as glucosamine sulphate or glucosamine hydrochloride, usually made from crab and shrimp shells, or from fermented corn in vegan versions. N-acetyl glucosamine is a related form with even less research behind it.
It has been studied a lot, and the results are disappointing. Large independent trials, such as the US GAIT trial, and a big review of the research found little or no difference from a dummy pill for most people. Some earlier trials using one branded glucosamine sulphate looked better, but many of those were funded by the maker. NICE does not recommend glucosamine on the NHS, and EFSA rejected a claim that it helps keep joints healthy.
There is no authorised health claim for glucosamine, so we make no claims about what it does. If you want to try it, the dose used in studies is 1,500 mg of glucosamine sulphate a day, and it is fair to stop after about three months if you notice no difference.
Typical dose: Studies used 1,500 mg of glucosamine sulphate a day
Safety: Most glucosamine is made from shellfish: avoid unless the label says it is from a non-shellfish source if you have a shellfish allergy. Glucosamine may strengthen the effect of warfarin, so speak to your GP or pharmacist first if you take warfarin or another blood thinner. Speak to your GP first if you have diabetes, asthma or glaucoma, or are pregnant or breastfeeding. Can cause mild stomach upset.
Research we looked at:
Clegg DO et al. (2006). Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis. N Engl J Med 354:795–808.
Wandel S et al. (2010). Effects of glucosamine, chondroitin, or placebo in patients with osteoarthritis of hip or knee: network meta-analysis. BMJ 341:c4675.
NICE (2022). Osteoarthritis in over 16s: diagnosis and management. NICE guideline NG226.
EFSA NDA Panel (2009). Scientific opinion on the substantiation of health claims related to glucosamine alone or in combination with chondroitin sulphate and maintenance of joints. EFSA Journal 7(9):1264.
Ingredients & nutrition
Always check the pack you receive, as manufacturers sometimes update recipes.
How to use
Price per dose & how it compares
| Product | Size | Price | Per daily dose |
|---|---|---|---|
| This product | 1500mg - 180 vcaps | £20.99 | £0.23 |
| NOW Foods Glucosamine & MSM Vegetarian | from £29.99 | £0.37 | |
| Doctor's Best Vegan Glucosamine & Chondroitin & MSM | from £38.99 | £1.30 | |
| Doctor's Best Glucosamine | from £17.99 | £0.20 |
Cost per daily dose lets you compare packs of different sizes fairly.Worked out from our current prices.
Food supplements should not replace a varied, balanced diet and healthy lifestyle. General information, not medical advice. Speak to your GP or pharmacist first if you are pregnant or breastfeeding, have a medical condition or take medication.
Doctor's Best's Vegan Glucosamine with GreenGrown — 1500mg per serving, 180 vcaps a bottle.
What it is
- GreenGrown glucosamine, fermented from corn rather than taken from shellfish
- Glucosamine is a building block of cartilage
How to use
Take as directed on the pack. Joint formulas are normally taken daily over a longer run rather than as a one-off.
Good to know
- Format: vcaps
- Caffeine free
- Suitable for vegans
- Vegetarian-friendly capsule shell
A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.
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