Gum disease is typically framed as a local problem: bacteria accumulate in dental plaque, irritate the gums, trigger localized inflammation, and — without adequate treatment — damage the periodontal tissues that anchor teeth to the jaw. Brush better. Floss more. See the hygienist regularly.
New research from King's College London, published in the Journal of Clinical Periodontology in June 2026 and covered by ScienceDaily on June 12, 2026, challenges the adequacy of that localized framing. In a small but carefully designed clinical trial, patients with severe periodontitis who followed a short-term fasting-mimicking diet alongside standard periodontal treatment showed significantly reduced levels of inflammatory markers — not only in their gum tissue, but in their blood. One of the markers reduced was C-reactive protein: a systemic inflammation marker whose elevation is associated with cardiovascular disease, diabetes, and a range of chronic conditions that have long been linked to poor periodontal health.
