Core Viewpoint - The article emphasizes the risks associated with picking and consuming ginkgo nuts (白果) from the ground, despite their perceived health benefits during the autumn and winter seasons [1][3]. Group 1: Risks of Picking Ginkgo Nuts - Ginkgo nuts found on the ground may be contaminated with heavy metals from vehicle emissions and pesticides, making them unsafe to consume [4][5]. - Improper handling and preparation of ginkgo nuts can lead to toxicity, as the toxic components are not adequately removed by the average person [7][8]. - The outer skin of ginkgo nuts can cause allergic reactions, particularly in individuals with sensitive skin, leading to symptoms such as redness, itching, and even blisters [9][10]. Group 2: Health Considerations - Individuals with certain health conditions, such as dry mouth or cough with yellow phlegm, should avoid consuming ginkgo nuts as they may exacerbate internal heat [13]. - Eating ginkgo nuts on an empty stomach can irritate the gastrointestinal tract, leading to discomfort [14]. - Properly processed ginkgo nuts can provide health benefits, including lung and kidney support, but it is crucial to understand the correct preparation methods [15][17]. Group 3: Recommended Consumption Methods - It is advisable to purchase processed ginkgo nuts from reputable sources rather than picking them from the ground [23]. - Two recommended recipes for safe consumption include a ginkgo, yam, and millet porridge, and a ginkgo, lily, and pear stew, both of which are designed to balance the properties of ginkgo nuts with other ingredients [19][21].

Core Points - The article discusses the dangers of consuming unprocessed ginkgo fruit, which can lead to poisoning and severe allergic reactions [9][10][11] - It emphasizes the importance of proper preparation methods to safely consume ginkgo fruit [14][15][16] Group 1: Dangers of Ginkgo Fruit - Unprocessed ginkgo fruit contains high levels of ginkgo acid (up to 20 mg/kg), which is known for its allergenic, cytotoxic, and immunotoxic properties [9] - The fruit's kernel and embryo contain cyanide and other toxic substances, making them potentially lethal if consumed improperly [10][11] - There have been multiple cases in Hangzhou where individuals required ICU treatment after consuming ginkgo fruit [9] Group 2: Handling Allergic Reactions and Poisoning - For mild skin allergies from ginkgo juice, wash the affected area and apply calamine lotion; seek medical attention if symptoms worsen [12] - Severe allergic reactions require immediate medical attention, especially if symptoms include rashes or difficulty breathing [12] - Symptoms of ginkgo poisoning can appear within 3 to 4 hours and may include fever, vomiting, abdominal pain, and in severe cases, respiratory failure [13] Group 3: Safe Consumption Practices - Ginkgo fruit can be safely consumed if properly prepared: remove the hard shell, boil in water for 10 minutes, and discard the embryo [15] - Ginkgo fruit should never be eaten raw; cooking at high temperatures can eliminate most toxic components [16] - Recommended cooking methods include steaming, boiling, or stir-frying after pre-cooking [17][18][19] - Consumption should be limited to avoid toxicity: adults should not exceed 10 pieces, while children should not consume more than 5 [21]