However, some foods require specific handling to prevent exposure to potentially harmful substances.
Green or sprouting potatoes
Potatoes belong to the nightshade family and naturally contain glycoalkaloids, including solanine and chaconine.
These compounds can become more concentrated when potatoes are exposed to light, damaged, or improperly stored.
Green discoloration can indicate exposure to light and possible increases in glycoalkaloids, although the green pigment itself is chlorophyll.
Eating potatoes containing excessive glycoalkaloids may cause nausea, vomiting, abdominal discomfort, and other symptoms.
Potatoes that are extensively green, very bitter, or severely sprouted should be discarded rather than consumed.
Ordinary cooking does not reliably eliminate these compounds.
Raw or undercooked kidney beans
Kidney beans are an excellent source of plant protein, fiber, and minerals.
However, raw or inadequately cooked kidney beans contain a lectin called phytohaemagglutinin.
In sufficiently high amounts, this substance can cause severe nausea, vomiting, and diarrhea.
Proper soaking and vigorous boiling according to established food safety instructions are important when preparing dried kidney beans.
