中新网5月23日电 反式脂肪，这个曾被一度误解为“绝对有害”的食品成分，如今在科学研究的照耀下逐渐褪去神秘面纱。世界卫生组织(WHO)的膳食指南建议，反式脂肪的供能比应低于1%，以保障民众的饮食健康。而据最新调查数据显示，中国人平均每天摄入的反式脂肪为0.39克，相当于供能比为0.16%，远低于WHO的安全建议。
反式脂肪，又称反式不饱和脂肪酸，是一类在自然界中普遍存在，但在工业加工中大量添加的脂肪。由于其具有不易变质、口感佳、保质期长等优点，常被用于制作油炸食品、烘焙产品等。然而，在过去，反式脂肪因其与心血管疾病之间的潜在关联，被广泛认为是一种“有害脂肪”。
近年来，随着研究的深入，科学界对反式脂肪的看法逐渐趋于理性。尽管一些研究表明反式脂肪可能对心血管健康产生不利影响，但也有证据显示，反式脂肪的摄入量与健康风险之间可能存在剂量依赖关系。也就是说，反式脂肪是否会对人体健康构成威胁，关键在于摄入量的多少。
因此，WHO的膳食指南将反式脂肪的摄入量设为健康饮食的限制因素之一，建议其供能比应低于1%。这一建议旨在通过控制反式脂肪的摄入量，降低心血管疾病的风险。
中国居民的饮食习惯中，反式脂肪的摄入主要来源于加工食品和油炸食品。因此，为了健康，建议消费者在选择食品时，应注意查看食品标签，减少含有反式脂肪的加工食品的摄入。同时，增加全谷物、蔬菜、水果等健康食品的摄入，以达到平衡膳食的目的。
总的来说，反式脂肪并非完全不能摄入，关键在于控制摄入量。公众应根据科学指导，合理调整饮食结构，以促进健康。
英语如下：
Title: “New Guidelines on Trans Fat Intake: Less Than 0.39 Grams Per Day”
Keywords: Trans Fat, Health Risks, WHO Guidelines
Content:
BEIJING, May 23 (Xinhua) — Once wrongly perceived as “completely harmful,” trans fats, a food component that has long been under the microscope, are gradually shedding their mysterious veil with the progress of scientific research. The dietary guidelines issued by the World Health Organization (WHO) recommend that the energy intake from trans fats should not exceed 1% to ensure the nutritional health of the public. According to the latest survey data, the average daily intake of trans fats in China is 0.39 grams, equivalent to an energy intake of 0.16%, far below the safe recommendations of the WHO.
Trans fats, also known as trans unsaturated fats, are a type of fat that is widely found in nature and extensively added in industrial processing. Due to their resistance to spoilage, superior taste, and extended shelf life, they are commonly used in the production of fried foods, baked goods, and more. However, in the past, trans fats were widely regarded as a “harmful fat” due to their potential association with cardiovascular diseases.
As research deepens, the scientific community’s view of trans fats is gradually becoming more rational. While some studies suggest that trans fats may have adverse effects on cardiovascular health, there is also evidence indicating that the relationship between trans fats intake and health risks may be dose-dependent. In other words, whether trans fats pose a threat to human health depends on the amount consumed.
Therefore, the dietary guidelines issued by the WHO include trans fats intake as a factor to be limited in a healthy diet, recommending an energy intake of less than 1%. This recommendation aims to reduce the risk of cardiovascular diseases by controlling the intake of trans fats.
The intake of trans fats in the diet of Chinese residents mainly comes from processed and fried foods. Therefore, for health, it is recommended that consumers pay attention to food labels when choosing products, reduce the intake of processed foods containing trans fats, and increase the intake of healthy foods such as whole grains, vegetables, and fruits to achieve a balanced diet.
In summary, trans fats are not entirely off-limits; it’s about controlling the amount consumed. The public should adjust their dietary structure according to scientific guidance to promote health.
【来源】http://www.chinanews.com/life/2024/05-23/10221878.shtml
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