Ho, ho, ho! Gather around, my jolly friends, for I have a tale to tell that’s as heartwarming as a cup of hot cocoa on a snowy evening. This story isn’t about reindeer or elves, but about something equally magical: the power of plants and a healthy lifestyle to bring joy and relief to those suffering from the chilly grips of rheumatoid arthritis (RA) and osteoarthritis (OA). Welcome to the enchanting world of the Plants for Joints (PFJ) intervention, a multidisciplinary sleigh ride through a winter wonderland of whole-food plant-based diets, physical activity, and the cozy comforts of managing sleep and stress.

In this tale, our heroes are not just the participants, but also the merry band of coaches, including dietitians and sport coaches, who guided them through the PFJ intervention. With a sprinkle of holiday magic, this intervention was designed to improve disease activity, symptoms, and metabolic health for those with RA or OA. But how, you ask, did this sleigh ride lead to such merry outcomes? Through a mixed methods process evaluation, of course, guided by the twinkling lights of the UK MRC guidelines for process evaluations.

Our story unfolds with 155 participants embarking on this journey, with 106 (68%) sharing their experiences through questionnaires and 34 (22%) gathering like families around the fireplace for focus groups. What they shared was as heartening as finding the perfect Christmas gift under the tree: a mean score of 9.2 out of 10 for how complete, coherent, and recommendable they found the intervention. They felt heard and empowered, like children on Christmas morning, ready to take control of their lifestyle and health outcomes.

The most cherished gifts from this intervention were not wrapped in paper and bows, but in the form of self-monitoring, social support, and the guiding hand of the multidisciplinary team. Participants found the intervention as feasible as Santa sliding down the chimney and noted significant improvements in their health outcomes, a true Christmas miracle!

However, in a plot twist as surprising as finding out Santa’s real, an explorative analysis revealed no significant difference in healthy lifestyle changes across different degrees of implementation. This revelation adds a sprinkle of mystery to our tale, suggesting that the magic of PFJ works in mysterious ways.

As our story comes to a close, with the sleigh bells of the PFJ intervention jingling all the way, we’re left with a sack full of insights on how to optimize this intervention for future implementation. With high satisfaction, feasibility, and perceived effectiveness, this tale supports the use of plant-based lifestyle interventions as an additional treatment option for those with RA, OA, or other chronic diseases, making it a story worth telling for many Christmases to come.

And so, as the snow settles and the fire burns down to embers, remember the magic of PFJ and the joy it brought to many. May your holidays be merry, your health be bright, and your spirits be lifted by the power of plants. Merry Christmas to all, and to all a good night!

International Clinical Trial Registry Platform numbers: NL7800, NL7801, and NL7802, all registered on the 17th of June, 2019.