Group 1 - The article highlights various carcinogenic substances that are often overlooked in daily life, emphasizing the importance of awareness and preventive measures for health [1] - Groundnut oil, particularly the unrefined type, is identified as a significant source of aflatoxin contamination, which poses serious health risks [2] - Betel nut is classified as a Group 1 carcinogen by the International Agency for Research on Cancer, with a strong association with oral cancer and high addiction potential [5] Group 2 - Oral cancer is the most common malignant tumor in the head and neck region, with approximately 300,000 new cases globally each year, and around 58,000 new cases in China annually, predominantly in males [7] - Cooking fumes are a major source of indoor air pollution, significantly increasing the risk of lung cancer, especially among non-smoking women who are regularly exposed [8] - Consumption of raw freshwater fish and shrimp poses a risk of infection from liver flukes, which are also classified as Group 1 carcinogens, highlighting the need for proper food handling and cooking practices [11]

Core Viewpoint - The article discusses a controversial collaboration between the luxury brand Bentley and a food brand, which Bentley has denied any association with, highlighting potential legal implications for unauthorized use of its brand [4]. Group 1: Bentley's Position - Bentley has stated that the collaboration and related activities with the food brand are not authorized and have no connection to Bentley or its authorized dealers [4]. - The brand reserves the right to take legal action to protect its legitimate rights and interests due to unauthorized use of its logo in promotional activities [4]. Group 2: Food Brand Background - The involved food brand, "Hecheng Tianxia Betel Nut," has been promoting a co-branded gift box with Bentley since May 20, claiming it is favored by Bentley car owners for high-end social and business gifting [4]. - The company behind the food brand, Hainan Hecheng Tianxia Technology Development Co., Ltd., was established in January 2010 with a registered capital of 80 million RMB, and is involved in betel nut processing and other business activities [4]. Group 3: Health Risks of Betel Nut - Betel nut is classified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC), which includes both tobacco-containing and non-tobacco betel nut products [5]. - The five-year survival rate for oral cancer, associated with betel nut consumption, ranges from 30% to 50%, indicating a high mortality risk [5]. - Chewing betel nut is highly addictive, making it difficult for users to quit once they start [6].