Can you eat potatoes that have sprouted

Last updated: April 1, 2026

Quick Answer: Sprouted potatoes should generally be avoided because they contain solanine, a toxic alkaloid that increases as potatoes sprout. Removing sprouts may reduce but not eliminate the risk.

Key Facts

Are Sprouted Potatoes Safe to Eat?

Sprouted potatoes are generally not recommended for consumption. When potatoes sprout, they produce solanine, a toxic alkaloid compound that develops as a natural defense mechanism. While the amount of solanine in a single serving may not cause serious illness, there is no safe threshold established for solanine consumption, making sprouted potatoes a food safety risk.

What is Solanine?

Solanine is an alkaloid naturally present in potatoes, particularly in green areas and sprouted portions. It increases dramatically when potatoes are exposed to light, stored at warm temperatures, or begin to sprout. Solanine functions as a natural pesticide in the plant, but in humans, it can cause gastrointestinal distress, nausea, vomiting, and neurological symptoms in sufficient quantities.

The compound is found in other nightshade plants as well, including tomatoes, peppers, and eggplants, though potatoes typically contain higher concentrations when sprouted.

Health Risks

Consuming sprouted potatoes can potentially cause poisoning symptoms including abdominal pain, diarrhea, vomiting, headache, and dizziness. In severe cases, solanine toxicity can affect the nervous system. While deaths from potato solanine toxicity are rare in modern times, instances of poisoning from sprouted or green potatoes have been documented.

Vulnerable populations, including children, pregnant women, and individuals with certain health conditions, may be at higher risk for adverse effects from solanine exposure.

Can Cooking Remove Solanine?

Unfortunately, standard cooking methods do not significantly reduce solanine content. Boiling, baking, or frying sprouted potatoes does not eliminate the toxin. While peeling potatoes can remove some solanine concentrated in the skin, sprouted areas still contain dangerous levels. The safest approach is to avoid eating sprouted potatoes entirely.

Storage and Prevention

To prevent potato sprouting, store potatoes in a cool, dark place at temperatures between 45-50°F (7-10°C). Keep them away from direct light, which triggers sprouting and green coloration. Properly stored potatoes can remain safe for several months. Check stored potatoes regularly and discard any that show sprouting or green discoloration immediately.

Related Questions

What is solanine in potatoes?

Solanine is a toxic alkaloid naturally produced by potatoes as a defense mechanism, especially when sprouted or exposed to light. It can cause gastrointestinal and neurological symptoms.

Are green potatoes safe to eat?

No, green potatoes contain elevated solanine levels and should not be eaten. The green color indicates light exposure and increased toxin production.

How should you store potatoes to prevent sprouting?

Store potatoes in a cool, dark place at 45-50°F away from light. Keep them in a basket or paper bag and check regularly for sprouting or discoloration.

Sources

  1. Wikipedia - Solanine CC-BY-SA-4.0
  2. FDA - Food Safety Public Domain