# Health risks of seasonal autumn foods

> Live situation record from CLSTR: https://clstr.news/situations/health-risks-of-seasonal-autumn-foods
> Updated: 2026-10-18T02:00:00.000Z. Sources: 7. Developments: 2.

Health concerns have been raised regarding the excessive consumption of certain seasonal autumn foods. In Japan, the Tokyo Metropolitan Health and Medical Bureau has noted that overeating ginkgo nuts can lead to poisoning symptoms, including vomiting, diarrhea, respiratory distress, and systemic convulsions or tremors.

Additionally, while research from Kindai University and studies in Wakayama Prefecture suggest that persimmon polyphenols and tannins may help suppress postprandial blood glucose levels and reduce LDL cholesterol, experts maintain that excessive consumption remains a health concern.

## Timeline

### 2026-10-18: Autumn foods pose health risks when consumed in excess

Excessive consumption of autumn staples like ginkgo nuts can cause poisoning, while persimmons offer health benefits like blood sugar regulation but require moderation.

3 sources. https://clstr.news/cluster/autumn-foods-pose-health-risks-when-consumed-in-excess

### 2026-10-09: Nutritionists warn of blood sugar spikes in autumn foods

Nutritionists warn that seasonal autumn foods like sugary pumpkin coffees and apple pastries can spike blood sugar, while whole apples provide metabolic benefits through fiber and polyphenols.

4 sources. https://clstr.news/cluster/nutritionists-warn-of-blood-sugar-spikes-in-autumn-foods

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Cite as: Health risks of seasonal autumn foods. CLSTR, https://clstr.news/situations/health-risks-of-seasonal-autumn-foods