号称“每天一杯自动瘦”的黑咖啡减肥法，真的靠谱吗？Is the black coffee weight loss method, which claims to automatically lose weight with one cup per day, really reliable?

每天喝上一杯黑咖啡就能轻松瘦下来，不用节食也不用运动，这种减肥方法，听上去是不是很诱人？入夏之后，减脂塑形成了大众的热门需求，黑咖啡减肥法在社交平台上广受追捧，不少网红咖啡成为带货新宠，销量可观。喝黑咖啡减肥，真有效吗？

黑咖啡减肥法网络热度高，真有奇效吗？

入夏以来，社交平台上黑咖啡减肥法热度一直居高不下，一些网红咖啡销量猛增。

记者注意到，这些热销的咖啡大多打着能燃脂、轻松瘦等宣传语，有的宣称“好身材喝出来，减法配方坐着瘦”，有的打出“脂肪-88%”，还有的亮出喝前喝后对比图，吸引消费者下单。黑咖啡瘦身真的有奇效？来听听医学专家怎么说。

解放军总医院第五医学中心内分泌科主任方毅：从医学的角度来说，黑咖啡里头含有咖啡因，实际上是能够促进肾上腺素的分泌，可以短暂提高代谢率，有消耗脂肪的功能。但是在现实生活当中，确实它减肥的功效是微乎其微的。

医学专家表示，黑咖啡中的咖啡因确实具有一定辅助脂肪代谢的作用，但这并不代表喝了黑咖啡就能瘦。减肥的核心在于维持能量负平衡，生活习惯不调整，单靠喝黑咖啡，减肥目标往往很难实现。

方毅：减肥的核心应该是能量负平衡，所以任何脱离了饮食控制、规律运动单靠黑咖啡实现实质性体重下降是不太现实的，也是不大可能的。

咖啡减脂并非人人适配 有明确禁忌人群

另外，医学专家提醒，尽管咖啡因有一定辅助脂肪代谢的作用，但咖啡减脂并非人人适配。

日常生活中，针对想要通过饮用黑咖啡辅助增强脂肪代谢的人群，医学专家提醒：饮用黑咖啡的最佳时间是早上，每天咖啡因摄入量不应超过400毫克，换算成400毫升装大杯黑咖啡，每天最好控制在两杯以内。

医学专家表示，黑咖啡中的咖啡因对人体神经、心率和肠胃具有刺激性作用，有着明确的使用禁忌人群，盲目饮用易加重身体负担。

方毅：一些人群是不推荐的，比如有消化系统症状的人，包括慢性的胃溃疡，还有食管反流等，还有平时是比较焦虑或者睡眠不佳的病人，我们也是不推荐的，还有高血压、血脂异常或者心脏病、心肌缺血、心律失常，这些人饮用黑咖啡以后可以造成心率增加，对病人来讲也是不适的。

除了有基础病的患者之外，孕妇这类特殊人群也同样需要警惕咖啡因带来的危害。

方毅：孕妇或者是哺乳的妈妈，还有一些吃抗凝药物抗生素的人群，因为咖啡可能它可以通过胎盘和乳汁会影响胎儿或者是新生儿的健康，还可以对一些药物有相互的作用，所以这类人群也是不大推荐的。

此外医学专家提醒，超重、肥胖人群，利用常规减脂方式效果有限，需要前往专业医疗机构进行科学减重干预。

功能咖啡走红网络 减脂效果如何？

随着“黑咖啡减肥法”在网络走红，各类网红功能性瘦身咖啡也顺势出圈，商家宣称添加了不同有效成分，通过不同原理实现减脂。它们的减脂效果又如何呢？

记者注意到，近年来，一款防弹咖啡在网上受到不少消费者追捧。在黑咖啡中加入无盐黄油、椰子油等富含MCT（中链甘油三酯）的油脂原料，为短暂采取生酮饮食法减肥的人群补充能量。

方毅：防弹咖啡，它要求是短暂的可能做饮食控制的人群，比如我就是短暂的生酮饮食，或者是低碳水化合物的低热量的饮食，通过防弹咖啡来补充你身体的能量所需，达到能量轻度的负平衡，可能有轻微控制体重的作用，如果离开了饮食控制去调整，它的热量就显然是超标了，可能是越喝会越胖的。

医学专家提醒，防弹咖啡热量较高，仅适配特定饮食模式人群，普通减脂大众不推荐。长期盲目饮用，不仅无法控制体重，还可能影响血脂健康。

方毅：防弹咖啡实际上它的热量是极其高的，一杯防弹咖啡它的热量可能达到了200~400千卡，而且你如果是长期去饮用这些脂肪类的咖啡，可能会对血脂代谢带来不利影响，有潜在心血管健康危害。

除了防弹咖啡，左旋肉碱咖啡也是当下备受欢迎的热门减脂饮品。医学专家提醒，从理论层面来讲，左旋肉碱确实能对脂肪代谢起到一定辅助作用，但想要靠它来减肥，也有严格的前提条件。

方毅：左旋肉碱实际上它是促进脂肪到细胞的线粒体去，所以它是一个载体的功能，但是离开了中高度的运动，那么左旋肉碱它实际上就失去了搬运工的作用了。

来源：央视新闻

Drinking a cup of black coffee every day can easily help you lose weight without dieting or exercising. Does this weight loss method sound tempting? After entering summer, weight loss plastic has become a popular demand among the public, and black coffee weight loss methods are widely sought after on social media. Many internet famous coffees have become a new favorite for sales, with considerable sales. Is drinking black coffee really effective for weight loss?

Black coffee weight loss method has high online popularity, is it really effective?

Since the beginning of summer, the popularity of black coffee weight loss methods on social media platforms has remained high, with some internet celebrities experiencing a surge in coffee sales.

The reporter noticed that most of these hot selling coffees advertise as fat burning and easy to lose weight. Some claim to have a "good figure to drink, weight reduction formula to sit and lose weight", some advertise "fat -88%", and some show comparison pictures before and after drinking to attract consumers to place orders. Is black coffee really effective for slimming down? Let's hear what medical experts have to say.

Fang Yi, Director of the Endocrinology Department at the Fifth Medical Center of the People's Liberation Army General Hospital: From a medical perspective, black coffee contains caffeine, which can actually promote the secretion of adrenaline, temporarily increase metabolic rate, and have the function of consuming fat. But in real life, its weight loss effect is indeed minimal.

Medical experts say that caffeine in black coffee does have a certain auxiliary effect on fat metabolism, but this does not mean that drinking black coffee can lead to weight loss. The core of weight loss lies in maintaining negative energy balance. Without adjusting lifestyle habits, it is often difficult to achieve weight loss goals solely by drinking black coffee.

Fang Yi: The core of weight loss should be negative energy balance, so it is unrealistic and unlikely to achieve substantial weight loss solely through black coffee without dietary control and regular exercise.

Coffee weight loss is not suitable for everyone, and there are clear contraindications for people

In addition, medical experts remind that although caffeine has a certain auxiliary effect on fat metabolism, coffee weight loss is not suitable for everyone.

In daily life, medical experts remind people who want to enhance fat metabolism by drinking black coffee that the best time to drink black coffee is in the morning. The daily intake of caffeine should not exceed 400 milligrams, which is equivalent to a 400 milliliter cup of black coffee. It is best to control within two cups per day.

Medical experts say that caffeine in black coffee has a stimulating effect on the human nervous system, heart rate, and gastrointestinal tract, and has clear contraindications for use. Blindly drinking it can increase the burden on the body.

Fang Yi: Some people are not recommended, such as those with digestive system symptoms, including chronic gastric ulcers, esophageal reflux, and patients who are usually anxious or have poor sleep. We also do not recommend high blood pressure, abnormal blood lipids, heart disease, myocardial ischemia, and arrhythmia. Drinking black coffee can cause an increase in heart rate, which is also uncomfortable for patients.

In addition to patients with underlying diseases, pregnant women and other special populations also need to be vigilant about the harm caused by caffeine.

Fang Yi: Pregnant women or breastfeeding mothers, as well as some people who take anticoagulant drugs and antibiotics, are not recommended because coffee may affect the health of the fetus or newborn through the placenta and milk, and can also interact with some drugs.

In addition, medical experts remind that overweight and obese individuals have limited effectiveness in using conventional weight loss methods and need to go to professional medical institutions for scientific weight loss interventions.

How effective is functional coffee in reducing body fat on the internet?

With the popularity of the "black coffee weight loss method" on the internet, various functional slimming coffees have also become popular. Merchants claim to have added different effective ingredients and achieved weight loss through different principles. What is their fat loss effect?

The reporter noticed that in recent years, a bulletproof coffee has been highly sought after by many consumers online. Adding salt free butter, coconut oil and other oil ingredients rich in MCT (medium chain triglycerides) to black coffee can provide energy for people who temporarily adopt a ketogenic diet to lose weight.

Fang Yi: Bulletproof coffee is designed for people who may have short-term dietary control. For example, I have a short-term ketogenic diet or a low carbohydrate, low calorie diet. By using Bulletproof coffee to supplement your body's energy needs and achieve a mild negative balance of energy, it may have a slight weight control effect. If you adjust without dietary control, its calorie content will obviously exceed the standard, and the more you drink, the fatter you may become.

Medical experts remind that bulletproof coffee has high calories and is only suitable for specific dietary patterns. It is not recommended for the general weight loss population. Long term blind consumption not only fails to control weight, but may also affect blood lipid health.

Fang Yi: Actually, bulletproof coffee has extremely high calories. A cup of bulletproof coffee may contain 200-400 calories. Moreover, if you drink these fatty coffee for a long time, it may have adverse effects on blood lipid metabolism and potential cardiovascular health hazards.

In addition to bulletproof coffee, L-carnitine coffee is also a popular weight loss drink nowadays. Medical experts remind that theoretically speaking, L-carnitine can indeed play a certain auxiliary role in fat metabolism, but there are strict prerequisites for relying on it to lose weight.

Fang Yi: L-carnitine actually promotes the transfer of fat to the mitochondria of cells, so it functions as a carrier. However, without moderate to high levels of exercise, L-carnitine actually loses its role as a transporter.

Source: CCTV News