This study aims to investigate the effect of an online lifestyle program on the impact of multiple sclerosis (MS) on daily functioning. MS patients will participate in the online lifestyle intervention of Voeding Leeft and will complete online questionnaires at 7 time-points: 3 months before the start of the intervention (run-in), before the start of the intervention (baseline), and 3, 6, 12, 18 and 24 months after the start of the intervention. A subsample (n=200) will also take part in measurements through mobile applications. The investigators hypothesize that the lifestyle program will reduce the impact of MS on the patients' daily functioning.
