The claim
Storing onions and potatoes together causes the potatoes to produce poisonous chemicals like solanine and chaconine, which can be fatal when consumed, especially for children.
Original review summary
The review says onions can accelerate potato sprouting and spoilage, but toxicity from solanine and chaconine is associated with consuming large quantities of green or sprouted potatoes. It concludes that claiming storage together alone creates deadly toxins exaggerates the food-safety risk.[S1]
Research date:
Sources and attribution
- [S1] FACTLY original review
Original review · Retrieved October 16, 2026
Original review: FACTLY. Structured data compiled by Data Commons under CC BY 4.0. Publisher article content is subject to its own terms. Summaries and context are produced by PeakMetrics with AI assistance.
Updated