Researchers conducted a meta-analysis of randomised controlled trials into the use of Rosa canina hip powder treatment compared with placebo for osteoarthritis, reported a newspaper.
They combined and analysed the results from these studies and found that use of Rosa canina reduced pain to about a third compared to the placebo group. People taking the powder were also less likely to use "rescue" medication, ie painkillers.
Critics say the study provides good evidence that rosehip reduces pain associated with osteoarthritis, however it was not set up to determine whether rosehip was better than current treatments.
Source: "Does the hip powder of Rosa canina (rosehip) reduce pain in osteoarthritis patients? – a meta-analysis of randomized controlled trials" Osteoarthritis and Cartilage April 2008 Ahead of print
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