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## A Comprehensive List of Potentially Toxic Grocery Store Items

### Understanding the Risks

It's important to note that most of these substances are safe when consumed in normal amounts and when the produce is handled and prepared correctly. However, certain conditions, such as improper storage or consumption of raw or unripe parts, can increase the risk of toxicity.

**Solanine** is a glycoalkaloid, a naturally occurring chemical compound found in plants of the nightshade family, including potatoes, tomatoes, and eggplants. It's a defense mechanism for the plant. In high concentrations, solanine can cause gastrointestinal upset, headaches, and neurological symptoms.

### Fruits

* **Avocado:** The pit and skin contain persin, a compound toxic to some animals. Humans can consume avocados safely, but large quantities of the pit or skin can be harmful.
* **Lychee:** Unripe lychees contain toxins that can cause serious health issues, including low blood sugar and liver damage.

### Vegetables

* **Potatoes:** Green or sprouted potatoes contain solanine. Higher concentrations are found in the skin, sprouts, and green parts.
* **Tomatoes:** The leaves and stems contain solanine and tomatine, which can be toxic in large amounts.
* **Eggplant:** The leaves and stems contain solanine.
* **Rhubarb:** The leaves contain oxalic acid, which is toxic. The stalks are safe to eat.
* **Kidney Beans:** Raw or undercooked kidney beans contain phytohaemagglutinin, a toxin that can cause severe digestive issues.
* **Lima Beans:** Raw or undercooked lima beans contain cyanogenic glycosides, which can release cyanide.
* **Spinach and Leafy Greens:** Can accumulate nitrates, which can convert to nitrites and cause methemoglobinemia.
* **Bamboo Shoots:** Contain cyanogenic glycosides, which can release cyanide if not properly prepared.
* **Chaya:** Contains cyanogenic glycosides and must be cooked to be safe.
* **Asparagus Berries:** The berries are toxic and can cause vomiting and diarrhea.
* **Jerusalem Artichokes:** Can cause digestive issues due to high levels of inulin.
* **Garlic and Onions:** Large quantities can cause gastrointestinal issues and blood disorders.
* **Beet Greens:** High in oxalates, which can cause kidney stones.

### Other

* **Raw Cashews:** Contain urushiol, the same compound found in poison ivy, which can cause severe skin rashes and toxicity if ingested.
* **Mushrooms:** Many wild mushrooms are toxic, and even some cultivated varieties can cause adverse reactions if not properly prepared.

### Prevention and Handling

* **Proper Storage:** Store fruits and vegetables in cool, dark places.
* **Thorough Cooking:** Cooking can inactivate many toxins.
* **Avoid Consumption of Non-Edible Parts:** Do not consume plant parts that are not typically eaten.
* **Be Cautious with Wild Plants:** Never consume wild plants unless you are absolutely certain of their identity and safety.

**Remember:** This list is for informational purposes only and does not replace professional medical advice. If you suspect any form of poisoning, seek medical attention immediately.