Fasting, ketogenic, and anti-inflammatory diets in multiple sclerosis: a randomized controlled trial with 18-month follow-up. - Bahr LS; Bellmann-Strobl J; Koppold DA; Rust R; Schmitz-Hübsch T; Olszewska M; Stadlbauer J; Bock M; Scheel M; Chien C; Multmeier J; Krannich A; et al. (BMC nutrition, 2025)