Bamboo shoots are a delicacy enjoyed by many, but they must be prepared carefully to ensure any harmful substances are removed before consumption.
Fresh bamboo shoots contain cyanide, a highly toxic acid (-CN). On average, 1kg of fresh shoots may contain up to 230mg of cyanide. When ingested, digestive enzymes convert this into hydrogen cyanide (HCN), which is poisonous to humans.
Symptoms of poisoning can appear as quickly as 30 minutes after eating bamboo shoots. Nausea, vomiting, headache, and dizziness are common indicators of bamboo shoot poisoning. Severe cases may result in convulsions, jaw locking, muscle rigidity, respiratory failure, cyanosis, and even coma.
Proper preparation and cooking methods are crucial to reducing the risk of poisoning. Failing to follow these steps when consuming bamboo shoots can lead to serious health risks.
Not Cooking Bamboo Shoots Thoroughly
Boiling and soaking bamboo shoots multiple times, changing the water regularly, helps reduce the cyanide content and lowers the risk of poisoning. Bamboo shoots should be boiled over medium heat until they are soft. You may need to boil them several times to ensure the removal of any harmful substances.
Consuming undercooked or raw bamboo shoots can lead to poisoning.
Covering the Pot when Boiling Bamboo Shoots
While it is common to cover the pot when boiling bamboo shoots, this practice is not recommended. Doing so prevents the toxic substances from evaporating, and the toxins will remain in the bamboo shoots if the pot is covered tightly.

Mistakes in preparing bamboo shoots can lead to poisoning.
Consuming Bamboo Shoots with Stomach Ache
Bamboo shoots are high in fiber, which may aggravate stomach aches. The rich fiber content requires more vigorous digestion and stomach contractions, potentially leading to bloating and aggravating existing ulcers, resulting in vomiting.
Eating Bamboo Shoots During Early Pregnancy
Bamboo shoots are not recommended for pregnant women, especially during the early stages. The high fiber content can cause bloating and indigestion, and the shoots are also prone to cyanide poisoning, posing risks to both mother and fetus.
Despite the popularity of bamboo shoots, pregnant women should exercise caution and limit their consumption during this sensitive period.