Symptoms of solanine poisoning The normal amount of solanine in a potato's peel means a 200-pound person would have to eat 20 pounds of potatoes to experience a toxic level, according to the University of Nebraska. However, exposure to light can increase solanine levels up to 10 times. 27 мая 2021 г.
How many potatoes is too much?
Research claims that eating potatoes four times a week could be harmful and contribute to the condition that causes strokes and heart attacks, Britain's biggest killers. The study, reported in the BMJ, is the first to identify potatoes as a key source of hypertension, better known as high blood pressure.
How much solanine is toxic?
It is suggested that doses of 200–400 mg for adult humans can cause toxic symptoms (20–40 mg for children). Most commercial potatoes have a solanine content of less than 0.2 mg g−1. However, potatoes that have been exposed to light and have started to turn green can show higher concentrations.
How long does it take for potatoes to become poisonous?
After careful analysis of the sequence of events, the onset of symptoms was pinpointed to about four to 14 hours after the boys had eaten boiled potatoes that had a high concentration of the toxin, solanine, a glycoalkaloid that was first isolated in 1820 in the berries of a European black nightshade.
How toxic are potatoes?
The average potato has 0.075 mg solanine/g potato, which is equal to about 0.18 mg/kg based on average daily potato consumption. Calculations have shown that 2 to 5 mg/kg of body weight is the likely toxic dose of glycoalkaloids like solanine in humans, with 3 to 6 mg/kg constituting the fatal dose.
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