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- Observational study· Medicine
Higher diet quality associated with lower odds of accelerated biological aging in observational study.
This cross-sectional analysis of 12,511 U.S. adults from NHANES 2005-2010 examined whether diet quality, measured by the Healthy Eating Index-2015 (HEI-2015), was associated with phenotypic age acceleration derived from 9 clinical biomarkers. Each 1-point increase in HEI-2015 was associated with lower odds of accelerated aging (OR = 0.98, 95% CI: 0.97-0.98). Mediation analysis found that approximately 29% of this association was mediated through body shape indices, particularly waist-to-height ratio and Body Roundness Index.
Evidence assessment pending
Read the study · Medicine ↗ - Research review· Nutrients
Systematic review identifies dysbiosis mechanisms but no clinical evidence for dietary interventions in cancer survivor cognition.
This systematized narrative review synthesized evidence from in vivo models and observational studies on how cancer therapies damage the gut microbiome and how dietary patterns may influence long-term neurocognitive outcomes in adolescent and young adult survivors of childhood cancer. The authors propose that chemotherapy-induced dysbiosis leads to reduced short-chain fatty acid production and intestinal barrier dysfunction, driving neuroinflammation and cognitive deficits, and that anti-inflammatory diets such as MIND and postbiotics show "measurable restorative potential." However, the review found no completed randomized controlled trials testing these interventions in cancer survivors.
Evidence assessment pending
Read the study · Nutrients ↗