"Doctor, I have a cup of liang teh at the kopitiam after lunch almost every day — will drinking it long-term be a problem?"

This question is indeed common in Malaysia. From pot-brewed liang teh at kopitiams and canned versions at convenience stores to dedicated herbal tea stalls on street corners, liang teh has become part of daily eating culture in Malaysia. But since it is water boiled with herbs, does drinking it every day count as "tonification" — or could it become a burden? This article explores five ideas to help clarify where liang teh sits within TCM theory, how it differs from ordinary tea, and where the line should be drawn in daily life.

I. The Most Basic Layer — What Liang Teh Actually Is

In the TCM theoretical framework, liang teh is understood as an everyday drink made by boiling herbs, designed around the idea of "using the nature of herbs to adjust imbalances in the body's state." Common ingredients such as chrysanthemum, honeysuckle, self-heal spike, monk fruit and licorice root each have different natures and directional actions in TCM theory — some lean toward clearing heat, some toward moistening — and together they become a pot of liang teh.

A key point: liang teh is not a single formula. Different stalls and different households brew it with very different ingredient ratios. Some are sweeter, some more bitter, some contain many herbs, some are just one ingredient steeped in water. The term "liang teh" covers a wide range, so it cannot be judged as simply "good" or "bad."

From a TCM theory perspective, every medicinal herb is understood to have a directional nature ("pian-xing"). Drinking a beverage that contains herbs means the body is receiving these directional qualities. What effect this has depends on the drinker's condition and the combination of herbs — not on the label "liang teh."

II. What Is Often Confused With It — Liang Teh vs. Ordinary Tea vs. Herbal Soups

Many people group liang teh with everyday teas — black tea, green tea, pu-erh — thinking all of them are just "flavoured water." But within TCM theory, their positions differ. Ordinary tea is a daily beverage with a relatively mild nature; liang teh carries a clear herbal character, and its directional action is considered more targeted.

Another common confusion is between liang teh and herbal soups (such as slow-brewed herbal soups). Herbal soups are usually food-first with herbs as supplements, emphasising how herbs pair with ingredients. Liang teh is the opposite: herbs are the main event, and the result is a cup of dark liquid. The "concentration" and "strength of action" are understood differently in TCM theory.

More recently, canned liang teh from convenience stores may have been reformulated with added sugar and other ingredients. It is closer to "a drink that contains herbal extracts" than to traditional liang teh. Treating it as a sugar-sweetened beverage may be more realistic than treating it as herbal water.

III. A Table to Make It Clear — Brewed Liang Teh vs. Homemade vs. Canned

This table deliberately avoids "how often to drink" or "how much to drink." These vary by individual and should be explained by the practitioner assessing you. What the table shows is that even under the same name "liang teh," sources differ greatly in herb concentration and ingredient consistency. They cannot be treated as the same thing.

IV. When Extra Caution Is Needed

• People taking western medication: Herbal ingredients in liang teh may interact with drugs. If you are on prescription medication, ask your doctor or pharmacist before drinking it — do not stop or adjust your medication on your own.
• People with chronic conditions: Diabetes, hypertension, kidney disease — these conditions place the body in a different state. The sugar or specific herb ingredients in liang teh may have unintended effects. Discuss with your doctor first.
• Pregnant and breastfeeding women: Common precautions listed in TCM literature include caution for pregnant and breastfeeding women when consuming herbal drinks, as certain herbs' directional actions need special consideration during this period. If you are expecting or breastfeeding, ask your obstetrician and a registered TCM practitioner before drinking.
• Young children and older adults: Children and older adults have different physical states from younger adults, and may respond to herbs differently. Before giving liang teh to either group, ask a doctor or a registered TCM practitioner first.
• The daily habit itself: When an herbal drink becomes a "must-have every day" habit, it is worth pausing to ask: does my body actually need this, or have I just gotten used to the taste?

⚠️ Safety reminder: TCM and Western medicine complement each other; it is not a choice between them. If you feel unwell after drinking — such as diarrhoea, dizziness, or a skin rash — stop drinking and contact your doctor. For difficulty breathing, swelling of the face or throat, confusion or persistent vomiting, call 999 immediately or go to the nearest emergency department.

A note: this section is general information only. For conditions like these, follow your doctor's diagnosis and treatment, and seek medical attention when you need it.

V. How to Approach It in Malaysian Daily Life

In Malaysia, liang teh appears almost everywhere. At lunch, when someone at the kopitiam orders teh tarik, another might switch to "liang teh." On a hot afternoon, a cup of freshly brewed liang teh from a roadside stall is a common sight. At convenience stores, rows of canned liang teh sit in the fridge, waiting to be picked up.

None of these scenes is right or wrong by itself. The real question is: why are you drinking it?

If it is because the weather is hot and you want something cooling, liang teh is just one option among many — plain water and lemon water will quench thirst just as well. If you are drinking it because "liang teh is good for health," then pause: what is that "good" based on? Who said it, and on what evidence?

Another familiar scene is around Chinese New Year or Hari Raya, when meals become richer and gatherings increase. Many people habitually "drink liang teh to cut through the grease." Behind this is the simple idea of using liang teh to "balance" the diet. In TCM theory, this can be understood as an attempt to adjust directional imbalances — but it does not mean "once I drink liang teh, I can eat whatever I want."

There is also a practical consideration: liang teh bought ready-made may already be sweetened. If you plan on a cup a day, checking the sugar content first may be the more realistic starting point.

In closing

✅ Keep these in mind:

1. Liang teh is water boiled with herbs; ingredients vary by recipe — it is not a single "health drink."
2. If you take medication, have a chronic condition, are pregnant or breastfeeding, or are caring for young children or the elderly, ask your doctor or pharmacist first.
3. Canned liang teh leans toward being a sugar-sweetened beverage, with lower herb concentration than freshly brewed versions.
4. The TCM concept of "herbal directional nature" means any herbal drink should not be consumed blindly every day.
5. Before drinking liang teh, ask yourself: do I need it, or have I just gotten used to the taste?

❌ What not to do:

1. Do not drink it daily just because "it is said to be good," without considering whether you actually need it.
2. Do not treat liang teh as a "cure-all" that cancels out irregular routines or rich eating.
3. Do not drink liang teh while on prescription medication without asking first — the interaction between drugs and herbs requires professional assessment, and never stop prescribed medication on your own.

👉 If you are unsure — "in my situation, is it suitable for me to drink liang teh regularly?" — feel free to reach out to HansMed for an online consultation, where practitioners registered under the T&CM Act 2016 can assess your individual case.

Sit with a licensed TCM practitioner from wherever you are.

HansMed Modern TCM

「医师，我几乎每天午餐后都会去kopitiam喝一杯凉茶，这样长期喝会不会有问题？」

这个疑问在马来西亚确实很常见。从kopitiam的壶装凉茶、便利店的罐装凉茶，到街角的凉茶铺，凉茶几乎成了大马人日常生活的一部分。但它毕竟是用药材煮的水，天天喝到底算不算「进补」，还是可能带来负担？这篇会从五个观念切入，帮您理清凉茶在中医理论中的定位、它与一般茶饮的差异，以及日常饮用时该注意的界线。

一、最基础的那一层——凉茶到底是什么

在中医理论框架中，凉茶被理解为一种以药材煎煮而成的日常饮品，它的设计思路是「借药材之性来调整身体状态的偏颇」。常见的材料如菊花、金银花、夏枯草、罗汉果、甘草等，在中医理论中各有不同的性味与作用方向，有的偏于清热，有的偏于滋润，组合起来便成为一壶凉茶。

这里有个关键点：凉茶不是单一配方。不同店家、不同家庭煲的凉茶，材料比例可能差很远。有的偏甜，有的偏苦，有的加了多种药材，有的只是单一材料泡水。因此，「凉茶」这个名词涵盖的范围很广，不能一概而论地说它好或不好。

从中医理论的视角来看，任何药材都有「偏性」。饮用含药材的饮品，意味着身体正在接收这些偏性。至于这些偏性对身体产生什么影响，取决于饮用者的状况与药材的搭配，而不是「凉茶」三个字本身。

二、常被混淆的另一样东西——凉茶与一般茶饮、药膳的界线

很多人把凉茶和日常喝的茶（比如红茶、绿茶、普洱茶）归为一类，认为都是「喝点有味道的水」。但在中医理论中，两者定位不同。一般茶饮属于日常饮品，性质相对平和；凉茶则带有明确的药材属性，其作用方向比一般茶饮更「有针对性」。

另一个常被混淆的是凉茶与药膳。药膳（比如煲汤）通常以食物为主、药材为辅，讲究的是与食材的搭配；凉茶则相反，以药材为主角，煮出来就是一杯深色的水。两者的「浓度」和「作用强度」在中医理论中被认为是不同的。

比较特别的是，现代便利店里卖的罐装凉茶，可能已经经过配方调整，加入糖分或其他添加物。它更接近「含药材成分的饮料」，而不是传统意义上的凉茶。因此，把它当作「含糖饮料」来看待，可能比当作「药材水」更贴近现实。

三、一张表看懂——传统凉茶铺现煮 vs 家里自己煲 vs 罐装凉茶

这张表刻意不写「多久喝一次」或「喝多少才有效」。这些因人而异，应由为您评估的医师说明。表格想表达的是：同样是「凉茶」，从药材浓度到成分稳定性，不同来源差异很大，不能当作同一种东西来谈。

四、这些情况要特别小心

• 正在服用西药的人：凉茶中的药材成分可能与药物产生交互影响。若您正在服用处方药，饮用凉茶前请先询问医生或药剂师，切勿自行停药或自行加减。
• 有慢性疾病的人：糖尿病、高血压、肾脏疾病等慢性病患，身体状态与一般人不同。凉茶中的糖分或特定药材成分，可能带来意料之外的影响。建议先与医生讨论。
• 孕期与哺乳期女性：中医文献一般列出的注意事项包括孕妇及哺乳期妇女应谨慎饮用含药材的饮品，因部分药材的作用方向在孕期需要特别考虑。若您正在怀孕或哺乳，饮用前请先询问您的产检医生与注册中医师。
• 年幼与乐龄人士：儿童与乐龄人士的身体状况与青壮年不同，对药材的反应也可能不同。若考虑让家中老小饮用，请先询问医生或注册中医师。
• 天天喝的习惯：当一种含药材的饮品变成「每天必喝」的习惯时，值得停下来想一想：我的身体真的需要它吗？还是只是习惯了那个味道？

⚠️ 安全提醒：中医与西医是互相补位的关系，不是二选一。若饮用后出现不适——比如腹泻、头晕、皮肤起疹等——请停止饮用，并联络您的医生。若出现呼吸困难、脸部或喉咙肿胀、意识不清或持续呕吐，请立刻拨打 999 或前往最近的急诊部。

小提醒：本段仅为一般知识说明。相关情况请以西医的诊断与治疗为主，并在需要时及时就医。

五、大马生活里怎么安排

在马来西亚，凉茶的身影几乎是无所不在的。午餐后在kopitiam点一杯teh tarik时，有人会改成「凉茶」；炎热的下午，在路边摊或凉茶铺来一杯现煮凉茶；便利店的冰箱里，一排排罐装凉茶等着被拿起。

这些场景本身没有对错。真正的问题是：您喝凉茶的「理由」是什么？

如果您是因为天气热、想喝点清凉的饮料，那凉茶只是众多选择之一，白开水与柠檬水同样能解渴。如果您是因为听说「喝凉茶对身体好」，那就值得多想一步：这个「好」是根据什么判断的？谁说的？依据是什么？

另一个常见场景是农历新年或开斋节期间，饮食偏油腻、聚餐频繁，很多人会习惯性地「喝凉茶解腻」。这背后有一个朴素的想法：用凉茶来「平衡」饮食。在中医理论中，这可以被理解为一种「调整偏性」的思维，但它不等于「喝了凉茶就可以放心大吃大喝」。

在马来西亚，还有一个很实际的考量：在外购买的凉茶可能已经加糖。若打算每天一杯，先了解一下含糖量，可能是更实际的出发点。

结语

✅ 记住这几点：

1. 凉茶是用药材煮的水，成分因配方而异，不是单一的「健康饮品」。
2. 正在服药、有慢性病、孕期哺乳、年幼或乐龄人士，饮用前先问医生或药剂师。
3. 罐装凉茶偏向含糖饮料，与现煮凉茶的药材浓度不同。
4. 中医理论中的「药材偏性」意味着，任何含药材的饮品都不应该盲目天天喝。
5. 喝凉茶前先问自己：我是需要它，还是习惯了它的味道？

❌ 不要这样做：

1. 不要因为「听说凉茶好」就每天喝，而没有想过自己是否需要。
2. 不要把凉茶当成「解药」，认为喝了它就可以抵消不规律的作息或饮食。
3. 不要在服用处方药的情况下，未经询问就饮用凉茶——药物与药材的交互影响需要专业评估，切勿自行停药。

👉 如果您不确定「以我的情况，到底适不适合常喝凉茶」，欢迎透过汉方中医的线上问诊，由依 2016 年 T&CM 法令注册的医师为您评估。

无论身在何处，与持证中医师对坐。

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