General Knowledge
Poisonous or Safe to Eat Quiz
Could you survive foraging in the wild? Test your knowledge of toxic vs. edible.
Could you survive foraging in the wild? Test your knowledge of toxic vs. edible.
The death cap mushroom (Amanita phalloides) is responsible for roughly 90% of all mushroom-related fatalities worldwide, yet it closely resembles several edible species. This quiz challenges you with 50 questions on toxic and safe-to-eat mushrooms, berries, plants, and seafood to see whether you could tell the deadly from the delicious in a real foraging scenario.
You'll face 10 randomized questions drawn from our pool of 50. Each question asks you to identify whether something is poisonous or safe, or tests your knowledge of specific toxins, symptoms, and foraging rules. After each answer you'll see a detailed explanation so you can learn from every question. Share your score and challenge friends to beat it.
This quiz covers deadly mushrooms like the death cap and destroying angel, toxic berries such as deadly nightshade and holly, dangerous plants including castor bean (the source of ricin) and water hemlock, risky seafood like fugu pufferfish and ciguatera-carrying reef fish, and surprising edibles like dandelions, stinging nettles, and cactus pads. You'll also learn about delayed-onset poisoning symptoms, look-alike species, and traditional preparation methods that make certain toxic foods safe.
The death cap (Amanita phalloides) is widely considered the most deadly mushroom in the world, responsible for approximately 90% of all mushroom poisoning deaths. It contains amatoxins that cause severe liver and kidney damage, with symptoms often delayed 6 to 12 hours after ingestion. By the time symptoms appear, significant organ damage may have already occurred. It is commonly mistaken for edible paddy straw mushrooms and other safe species.
Apple seeds do contain amygdalin, a compound that releases hydrogen cyanide when crushed and digested. However, you would need to thoroughly crush and consume roughly 200 apple seeds (about 40 apple cores) in one sitting to reach a potentially lethal dose. Swallowing a few seeds whole is harmless because the hard seed coat passes through your digestive system intact. So while technically toxic, apple seeds pose virtually no real-world danger from normal consumption.
There is no single foolproof visual test. However, some general guidelines can help: about 90% of white and yellow berries are poisonous, while roughly 50% of red berries are toxic. Blue and black berries (like blackberries, blueberries, and huckleberries) are safe more often, but there are deadly exceptions. Never rely on color alone. The safest approach is to positively identify the plant species before eating, learn your region's common toxic species, and when in doubt, do not eat it. The military's Universal Edibility Test involves a multi-step process of skin contact and small taste tests over 24 hours, but it is not reliable for mushrooms or highly toxic plants.
Last updated: April 2026