Xylitol, a sugar alcohol sweetener used to replace sugar in gum and mints, tastes like sugar with fewer calories. As a sugar replacement, it raises blood sugar and insulin far less. Cavity-prevention evidence is limited, mostly from children. Large servings commonly cause gas and loose stools and may make blood platelets more prone to clotting, an unresolved concern. Small, spread-out oral-care amounts carry the least uncertainty. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Dental caries, plaque and gum-bleeding scores | No established target; track new lesions and plaque scores against own baseline | Expected to change: primary oral-health target |
| Salivary mutans streptococci count | No established target; track change from own baseline | Expected to change: xylitol gum lowers counts |
| HbA1c | 4.0–5.6% | Expected to change when xylitol replaces sugar |
| Serum uric acid | Men 3.4–7.0 mg/dL; women 2.4–6.0 mg/dL | Safety check: acute rises reported |
Cadence: Digestive symptoms during the first one to two weeks of dose build-up; uric acid at 4–8 weeks if intake exceeds 20 g/day; HbA1c every 3–6 months during sugar replacement; dental review every 6–12 months