以下文章来源于内分泌早知道 ，作者关注内分泌的 内分泌早知道 . 深度分享内分泌用药经验、病例剖析、指南专业解读并紧跟国内外内分泌领域前沿进展，「每医健」旗下内容平台。 作为东方饮食文化中不可或缺的基石，大米饭长期以来承担着主食的重要角色。然而近年来的营养学研究却让这一传统主食饱受争议， 部分极端观点甚至将其直接归类为"不健康食品"，认为其会导致血糖飙升和体重增加等健康问题。但最新研究表明，真正的"血糖杀 手"另有其人，而很多人在不知不觉中每天都在大量摄入这些隐藏的高升糖指数食物。 营养学家指出，这些被忽视的食品对血糖的影响远超普通大米，但由于其伪装性强、口感佳，导致消费者难以自觉控制摄入量。更令人 担忧的是，即便在知晓风险的情况下，多数人仍然难以改变长期形成的饮食习惯，使得这些食品持续危害着现代人的血糖健康。 ▍白米饭真是"最差主食"？科学解读背后的真相 近年来，"白米饭是最差主食"的说法广泛流传，甚至有人因此完全戒掉米饭，认为不吃米饭就能避免健康风险。但这一说法是否科学？ 米饭真的如此不堪吗？ 争议的根源在于白米饭的高升糖指数（GI＞80），这意味着它被消化吸收的速度较快，可能引起血糖快速上升，对需要控糖 ...

Core Viewpoint - The article discusses the rising trend of low glycemic index (GI) foods in the market, particularly targeting older consumers, and raises concerns about the authenticity and marketing strategies behind these products [1][5][12]. Group 1: Market Trends - Low GI food labels have become ubiquitous in supermarkets, appearing on various products from noodles to snacks, indicating a significant shift in consumer awareness and demand for healthier options [6][10]. - The concept of low GI foods is being promoted as part of a national health initiative, with the government encouraging the consumption of low sugar or no sugar products to combat diabetes [12][14]. Group 2: Consumer Behavior - Older consumers, particularly retirees, are increasingly investing in low GI foods, despite the higher prices associated with these products, reflecting a shift in their spending priorities towards health [26]. - There is a growing "health anxiety" among consumers, leading them to seek out products that claim to have health benefits, such as low GI foods, which may not always be substantiated [10][30]. Group 3: Certification and Authenticity - The process for obtaining low GI certification involves rigorous testing to ensure that the blood sugar response to the product is significantly lower than that of glucose, which adds credibility to the label [13][16]. - Different products may carry varying low GI certifications due to the involvement of multiple third-party laboratories, leading to inconsistencies in labeling and consumer confusion [16][17]. Group 4: Pricing Dynamics - The presence of low GI labels can lead to a price increase of up to 40% for similar products, raising questions about the value proposition for consumers [12][11]. - Despite the higher costs, consumers are willing to pay more for products that align with their health goals, indicating a potential market opportunity for companies offering certified low GI foods [26].