How Does Lemongrass Help The Body? | What Research Shows

Lemongrass is best known for easing mild stomach upset for some people, while lab studies of its oils show antimicrobial and inflammation-related activity.

Lemongrass is the citrus-scented stalk you’ve smelled in Thai soups and herbal tea. The plant most often sold for cooking and tea is Cymbopogon citratus. In food, it’s mainly flavor. In tea, it becomes a simple daily drink. In supplements and distilled oils, it becomes concentrated, and the safety picture changes.

This article sticks to what current evidence can actually back. You’ll see where lemongrass has human data, where the claims lean on lab work, and how to use it in a way that keeps expectations realistic.

What Lemongrass Is And Why It Smells Like Lemon

Lemongrass is a grass with a tight, pale core and tougher outer layers. The “lemon” scent comes from aromatic compounds, mainly citral, along with other terpenes. When you bruise a stalk, you rupture plant cells and release those oils into the air and into your pot.

Citral is also a big piece of lemongrass distilled oil. That matters because many lab studies test distilled oil, not food-level use. A wide review on PubMed Central pulls together what has been studied across teas, extracts, and oils, plus the kinds of tests used. Scientific basis for the therapeutic use of Cymbopogon citratus.

How Lemongrass Helps Digestion For Some People

If someone says lemongrass “helps,” they often mean one of three feelings: less gassy pressure after a meal, less queasiness, or a warmer, looser belly. Those are real sensations, even when the science behind them isn’t mapped with big human trials yet.

Aromatic herbs can nudge digestion in a few plain ways. Warm liquid can relax the gut. Aroma can change the way the brain reads stomach signals. Some plant compounds may also affect how quickly the stomach empties. With lemongrass, tea is the easiest way to test this without taking a big dose.

Signs Lemongrass Tea May Fit Your Routine

• After a rich meal: you want something warm that isn’t sweet.
• On travel days: you want a familiar drink that’s caffeine-free.
• Late afternoon: you want a break without pushing bedtime later.

How To Make Lemongrass Tea That Tastes Clean

1. Rinse 1 fresh stalk (or use 1–2 teaspoons dried leaf).
2. Peel off one tough outer layer, then bruise the pale core with the back of a knife.
3. Pour hot water over it, steep 7–10 minutes, then strain.
4. Drink plain, or add ginger, lime, or a little honey if you like.

If you get reflux, start with a weaker steep. Some people find citrus-scented herbs can trigger heartburn.

What Science Shows About Lemongrass And Germs

Lemongrass extracts and distilled oil often slow the growth of some microbes in lab tests. This is a common pattern with aromatic plants. It helps explain why lemongrass shows up in food flavoring and in some personal-care products.

Lab results do not mean a cup of tea treats an infection. Inside the body, compounds get absorbed, changed by the liver, and diluted. Still, the lab pattern is consistent enough that it’s fair to say lemongrass has antimicrobial activity in vitro, especially in its distilled oil form.

How Lemongrass Helps The Body In Daily Use

Most people don’t need a supplement to get value from lemongrass. Food and tea handle the everyday uses: taste, hydration, and mild stomach comfort. Concentrated products shift the goal from “nice daily drink” to “higher exposure,” and that calls for extra care.

Start by matching the form to the job. If your goal is flavor and a lighter drink, stick with culinary use. If your goal is a targeted outcome, look for human trials for that outcome and check interaction risk first.

How Does Lemongrass Help The Body? A Practical Evidence Map

This table lines up common reasons people use lemongrass with the kind of evidence behind each one. “Lab” means petri dish or cell studies. “Animal” means non-human research. “Human” means trials in people.

Body area	Common use	Evidence type today
Stomach comfort	Tea after meals, mild nausea	Some human observations; more data needed
Gas and bloating	Warm drink to feel less “puffed”	Tradition plus plausible mechanism; limited trials
Microbes on surfaces	Food flavoring, personal-care scent	Lab findings for oil and extracts
Inflammation markers	Soreness, irritation	Animal and lab findings; thin human outcomes
Blood sugar markers	Metabolic routines	Mostly animal research; no substitute for medical care
Blood lipid markers	Cholesterol routines	Animal findings in reviews; limited human confirmation
Sleep routine	Evening drink without caffeine	Indirect benefit from replacing caffeinated drinks
Hydration	Flavoring water without sugar	Human benefit through better drink choices

When you step from tea into capsules, it helps to know how supplements are regulated. The FDA’s plain-language overview is a good starting point: FDA 101: Dietary Supplements.

Interaction risk is another reason to slow down with capsules. NCCIH explains how medicines and supplements can interact and why it’s smart to share your full list with your care team: How Medications and Supplements Can Interact.

Buying And Storing Lemongrass So It Stays Fragrant

Fresh stalks should feel firm, not rubbery, with a pale base and green tops. If the cut end is brown and dry, the flavor is usually flat. Dried leaf should smell lemony the moment you open the bag. If it smells like hay, it will brew like hay.

At home, wrap fresh stalks in a towel and keep them in the fridge. For longer storage, freeze whole stalks in a sealed bag. Frozen stalks slice easier when partly thawed, and the aroma still comes through in soups and tea. Dried leaf keeps best in an airtight jar away from heat and light.

Taste Fixes For People Who Don’t Love Herbal Tea

If lemongrass tea tastes grassy, steeping time is usually the culprit. Shorten the steep by two minutes, or use cooler water. If it tastes thin, bruise the stalk more and use a lid while it steeps so the aroma stays in the cup.

If you want a rounder flavor, pair lemongrass with ginger or a slice of fresh orange peel. If you want a sharper, cleaner cup, add a few drops of lime juice right before you drink it.

Ways To Use Lemongrass In Food Without Wasting It

Fresh lemongrass can feel tricky because the fibers are tough. A simple rule helps: use the stalk like a spice, not like a vegetable.

For soups and broths, bruise the stalk and simmer it, then pull it out before serving. For curries and stir-fries, slice the tender inner core as thin as you can. Thin slices soften enough to eat; thick chunks stay stringy.

Easy Pairings That Keep The Flavor Balanced

• With ginger and garlic: warm and sharp, good for broths.
• With coconut milk: brightens rich dishes.
• With lime zest: pushes the citrus note without extra sourness.

Supplements: What To Check Before You Swallow A Capsule

“Lemongrass” on a bottle can mean different plant parts, different extraction methods, and different doses. Two products can both say “lemongrass” and still act nothing alike. That’s why label reading matters.

Look for the full Latin name, the plant part (leaf, stalk, or oil), and a clear dose per serving. A product that hides behind a “proprietary blend” makes it hard to know what you’re taking.

MedlinePlus keeps a directory for herbs and supplements that can help you check general safety notes and interaction flags: Herbs and Supplements.

Who Should Pause Before Using Concentrated Extracts

• People on blood sugar medicines: animal research suggests extracts can shift glucose markers in some settings.
• People on blood pressure medicines: be alert for lightheadedness if you change routines.
• Anyone with kidney or liver disease: use food-level lemongrass unless your clinician gives the go-ahead.
• Pregnancy and breastfeeding: food-level use is common; capsules and distilled oil have limited safety data.

Distilled Oil On Skin: Dilution Beats Guesswork

Lemongrass distilled oil is concentrated. A few drops can represent a lot of plant material. That concentration is part of why people like it. It’s also why skin reactions happen.

If you use it topically, dilution is the baseline. A 1% blend is a common starting point: about 1 drop of distilled oil per teaspoon of carrier oil. Patch-test on the inner forearm, wait 24 hours, then decide.

Skip it on broken skin. Keep it away from eyes and other sensitive areas. Never ingest distilled oil unless you have direct guidance for a product made for oral use.

Choosing A Form That Matches Your Goal

People often reach for the strongest form when they only need the gentlest. Use this table to match form to purpose, then weigh safety notes before you buy anything.

Form	What it’s best for	Safety notes
Fresh stalk in meals	Flavor, lighter feel after rich foods	Low exposure; remove fibrous pieces before eating
Dried leaf tea	Caffeine-free drink, mild stomach comfort	Start weak if reflux-prone; stop if it worsens heartburn
Tea bags or blends	Convenience, steady taste	Check added herbs for interactions; blends can change effects
Standardized capsule	People seeking higher exposure	Quality varies; talk with a clinician if you take prescription meds
Distilled oil (topical)	Scented body oil, massage blend	Dilute and patch-test; avoid eyes and sensitive areas
Distilled oil (diffuser)	Scenting a room	Keep away from pets and small children; stop if it triggers headaches

What You Can Realistically Notice Over A Week

If lemongrass fits you, the payoff is usually simple: you drink more warm fluid, you reach for fewer sweet drinks, and your stomach feels calmer after meals. That’s a fair outcome even if you never touch a supplement bottle.

If you feel worse—heartburn, stomach cramps, rash, headache—stop and reset. If you used a blend, check what else was in it. Extra herbs can be the real trigger.

How To Write About Lemongrass Without Making Risky Claims

Herbs sit in a gray zone online: plenty of tradition, scattered science, and a lot of hype. The safe way to talk about lemongrass is to name the form and name the evidence type. Tea for mild stomach comfort is a reasonable claim. Distilled oil killing germs inside the body is not a fair claim.

Stick to language like “may help,” “is used for,” and “lab studies show,” then state the limit in the next sentence. That keeps the reader grounded and keeps your page aligned with health content expectations.