Solanine is a glycoalkaloid poison created by various plants in the genus Solanum, such as the potato plant. When the plant's stem, tubers, or leaves are exposed to sunlight, it stimulates the biosynthesis of solanine and other glycoalkaloids as a defense mechanism so it is not eaten.
Are potatoes ever poisonous?
Reports of potato poisoning state that unripe, sprouting, or green potatoes contain toxic alkaloids, including solanine. When ingested, they can cause drowsiness, weakness, apathy, and gastrointestinal symptoms. This is rare — in most cases, potatoes are safe to eat and are a staple food in many countries.
How do you know if a potato is toxic?
Some signs that uncooked potatoes have spoiled include dark spots on the skin, a soft or mushy texture, and foul odor. Cooked potatoes may have mold but can also spoil without any noticeable signs.
How green does a potato have to be to be poisonous?
A recent study suggested that a 16-oz (450-gram) fully green potato is enough to make a small adult ill. Cooking does not destroy the solanine toxin, so the green parts of potatoes should be removed entirely.
What causes solanine poisoning?
A study done by Purdue University stated that the green coloring in a potato is caused by chlorophyll. Chlorophyll is caused when the vegetable is stored in light. Potatoes grow underground and should be kept in the dark. When they are stored on a counter or a place that gets regular light, chlorophyll is produced.
More useful articles on a similar topic 👇
What is the most toxic food to eat?How many potatoes Is it safe to eat?
