… the difference between rheumatoid arthritis and osteo-arthritis. I realised that my mother, who has a multi-joint arthritis problem, didn’t know the difference when she told me that a friend had recommended she avoid certain foods to help her arthritis, and I said “but Mum, you have osteo-arthritis, not rheumatoid arthritis – dietary triggers are not an issue for you” and she basically said “huh?”.