Last updated: September 2026 · Written by the NEWDRU Team
Short answer: Lauki juice (bottle gourd juice) is about 92% water and roughly 12–15 calories per 100 ml, which makes it a genuinely low-calorie, hydrating drink that supports weight loss, digestion, and healthy blood pressure when it replaces sugary drinks. Its benefits are real but modest — it is a good habit, not a cure. The one rule that matters more than any benefit: taste a tiny sip first, and if the juice is bitter, throw the entire batch away. Bitter bottle gourd contains cucurbitacins, which are toxic.
What is lauki juice?
Lauki juice is simply the strained liquid from raw bottle gourd — the pale green, mild-tasting vegetable known as lauki, dudhi, ghiya, sorakaya or calabash across India. Botanically it is Lagenaria siceraria, a member of the same family as cucumber and pumpkin.
Because bottle gourd is soft and extremely watery, it does not need a heavy cold-press machine. Peeled cubes blend down to a thin, drinkable liquid in under a minute in an ordinary blender, and you strain out the small amount of fibre afterwards. That is why it has stayed a household morning drink in India for generations — it is cheap, it is available almost year-round, and it requires almost no equipment.
What are the health benefits of bottle gourd juice?
Here is what the composition of lauki actually supports, stated honestly rather than as marketing claims.
1. It is very low in calories and highly filling
At roughly 12–15 calories per 100 ml and about 92% water, a 200 ml glass costs you around 25–30 calories. Drinking it before a meal adds volume to your stomach without adding energy. This is the single most defensible weight-loss mechanism: it displaces higher-calorie drinks and blunts appetite slightly. It does not "burn fat" on its own.
2. It supports hydration and electrolyte balance
Bottle gourd carries a useful amount of potassium alongside its high water content. Potassium works against sodium in regulating fluid balance, which is why lauki juice is a sensible summer and post-workout drink in Indian conditions.
3. It may help with blood pressure
The potassium-to-sodium ratio is favourable, and potassium-rich foods are consistently associated with better blood pressure control. Lauki juice is a helpful addition to a BP-friendly diet — it is not a replacement for prescribed medication, and you should never stop or reduce medication on your own.
4. It is gentle on digestion
The water and soluble fibre content makes lauki juice easy on the stomach and mildly helpful for constipation. Ayurveda classifies bottle gourd as cooling and light to digest, which lines up with why it is traditionally recommended for people recovering from illness.
5. It is a low-sugar way to get fluids
Compared with packaged juices, sweetened lassi or aerated drinks, lauki juice delivers volume and micronutrients with almost no sugar. If you are managing blood sugar, this substitution effect is the real benefit — but check with your doctor before making it a daily fixture.
Lauki juice vs other popular Indian juices: how does it compare?
| Juice | Approx. calories / 100 ml | Sugar level | Best for |
|---|---|---|---|
| Lauki (bottle gourd) | 12–15 | Very low | Weight loss, hydration, BP support |
| Ash gourd (petha) | 13–16 | Very low | Cooling, acidity relief |
| Cucumber | 14–16 | Very low | Hydration, skin |
| ABC (apple-beet-carrot) | 45–55 | Moderate | Iron, stamina, skin glow |
| Amla | 20–25 | Low | Vitamin C, immunity, hair |
| Sugarcane | 70–80 | High | Quick energy only |
If your goal is fat loss or fluid management, lauki sits in the strongest tier. If your goal is micronutrient density, an ABC juice or amla juice will do more for you.
⚠️ Why must you taste bottle gourd juice before drinking it?
This is the most important section on this page.
Some bottle gourds develop high levels of cucurbitacins — naturally occurring bitter compounds that are toxic to humans. Cooking does not reliably destroy them, and raw juice delivers them in concentrated form. India has documented hospitalisations and deaths from drinking bitter bottle gourd juice, which is why the Indian Council of Medical Research has issued public advisories about it.
The rule is simple and non-negotiable:
- Cut a small piece of the raw gourd and taste it before juicing.
- If it tastes bitter, sour or unpleasantly sharp in any way, discard the whole vegetable. Do not juice it, do not cook it.
- After blending, take one small sip before drinking a full glass. If the juice is bitter, throw the entire batch away — do not try to mask it with lemon, salt or honey.
- Never mix bottle gourd juice with other bitter juices such as karela in a way that hides bitterness, because that removes your only warning signal.
Symptoms of cucurbitacin poisoning — vomiting, severe abdominal pain, diarrhoea, blood in vomit or stool — usually appear within a few hours. Treat any of these as a medical emergency and go to a hospital immediately.
How do you make lauki juice at home?
The whole process takes about five minutes.
Ingredients (makes one 250 ml glass)
- 200 g fresh, firm bottle gourd (roughly half a medium lauki), peeled and cubed
- 100–150 ml drinking water
- 1 tsp lemon juice
- 4–5 mint leaves
- A pinch of black salt and a pinch of roasted cumin powder
- Optional: 1 cm ginger, or 2–3 curry leaves
Method
- Choose well. Pick a young, firm, uniformly pale-green gourd with smooth skin. Avoid soft, yellowing or oversized ones — older gourds are more likely to be bitter and fibrous.
- Taste-test the raw cube. As described above. This step is not optional.
- Peel and cube. Remove the skin and any hard mature seeds in the centre. Cut into 2 cm pieces.
- Blend. Add the cubes, water, mint and lemon juice and run for 30–45 seconds until smooth. In a portable blender, pulse in two or three short bursts rather than one long run.
- Strain (optional). Pass through a fine sieve if you want a thin, juice-like texture. Keep the pulp in if you want the fibre — it makes the drink more filling.
- Season and drink fresh. Add black salt and cumin, sip to check it is not bitter, and drink within 15–20 minutes. Lauki juice oxidises and separates fast; it is not meant to be stored.
Because bottle gourd is soft and watery, this is one of the easiest things a compact blender can handle. A rechargeable bottle like the NEWDRU HS-889 Self-Cleaning Portable Juicer blends a single glass directly in the cup you drink from, and the multi-speed control lets you pulse rather than over-blend. If you want a larger batch for the family, the 6-Blade Portable Fruit Juicer with Juice Jars handles more volume per run. You can see the full range in the NEWDRU Portable Juicers collection.
When should you drink lauki juice, and how much?
Best time
Early morning on an empty stomach is the traditional recommendation, and it works well in practice — absorption is quick and it sets up hydration for the day. If you find it uncomfortable on an empty stomach, drink it mid-morning or 20–30 minutes before lunch instead. Avoid it late at night, since the volume of fluid will simply interrupt your sleep.
How much per day
One glass of about 150–250 ml per day is a sensible ceiling for most healthy adults. There is no benefit to drinking more, and very large quantities of any raw vegetable juice can upset digestion. Treat it as a daily habit for a few weeks, then reassess rather than treating it as a permanent prescription.
What are the side effects of bottle gourd juice?
- Cucurbitacin toxicity from bitter gourds — the serious one, covered in detail above.
- Bloating or gas — some people react to raw cucurbit vegetables. Start with a smaller 100 ml glass.
- Loose stools — usually from drinking too much at once, or from juice that has been sitting for hours.
- Low blood pressure — if you are already on antihypertensive medication, the additive effect is worth discussing with your doctor.
- Potassium load — people with chronic kidney disease are often on potassium restrictions. Lauki juice is frequently promoted for kidney health online; if you have a diagnosed kidney condition, ask your nephrologist before drinking it rather than following internet advice.
Pregnant and breastfeeding women, children, and anyone with an ongoing medical condition should check with a doctor before making it a daily drink.
Key takeaways
- Lauki juice is ~92% water and ~12–15 calories per 100 ml — one of the lowest-calorie fresh juices you can make.
- Real benefits: hydration, appetite control, gentle digestion, potassium for blood pressure support. It is not a fat burner or a cure.
- Always taste before you drink. Bitter bottle gourd is toxic — discard the entire batch.
- 150–250 ml a day, fresh, ideally in the morning. Never store it.
- Peel, deseed, blend 30–45 seconds, strain if you prefer a thin texture, season with black salt, lemon and cumin.
- A portable rechargeable blender makes it a two-minute habit instead of a chore.
Frequently asked questions
Does lauki juice reduce belly fat?
Not directly. No food or drink targets fat in a specific area. What lauki juice does is add filling volume for almost no calories, so it helps you eat less overall — and a sustained calorie deficit is what reduces belly fat. Used as a replacement for tea with sugar, packaged juice or soft drinks, it can meaningfully cut your daily intake.
Can I drink lauki juice every day?
Most healthy adults can drink about one glass daily, provided every batch passes the bitterness taste test and you make it fresh. If you have kidney disease, low blood pressure, or are pregnant, get medical clearance first rather than assuming daily use is safe for you.
Is lauki juice good for diabetes?
It is a low-sugar, low-calorie drink, so it is a far better choice than fruit juice for someone managing blood sugar. But it is not a treatment for diabetes and will not replace medication or a proper diet plan. Monitor your own readings and speak to your doctor before adding anything daily.
Should I strain lauki juice or drink it with pulp?
Strain it if you want a light, thin, traditional juice texture that is easy to drink first thing in the morning. Keep the pulp if weight management is your goal — the retained fibre slows digestion and keeps you full longer. Both are fine nutritionally.
Can I mix lauki juice with other ingredients?
Yes — mint, lemon, ginger, coriander, cucumber and a pinch of black salt all work well and improve a fairly bland base. Amla is a popular pairing for extra vitamin C. The one caution is avoiding strongly bitter add-ins like karela, because they mask the bitterness that warns you a gourd is unsafe.
How long does lauki juice last?
Drink it within 15–20 minutes. Raw bottle gourd juice oxidises quickly, separates, and loses both taste and nutrients. Refrigerating it overnight is not recommended — make a fresh glass instead, which takes under five minutes with a portable blender.
Make it in two minutes
Rechargeable, cordless and light enough for the kitchen counter, the office or the gym bag. Blend your lauki juice straight into the bottle you drink from.
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The bottom line
Lauki juice earns its place in an Indian kitchen for unglamorous reasons: it is cheap, hydrating, almost calorie-free, and easy on the stomach. Treated as a daily habit that replaces something worse, it quietly helps with weight management, blood pressure and digestion. Treated as a miracle cure, it will disappoint you. And whatever else you take from this page, take the taste test — one bitter sip is the difference between a healthy morning drink and a hospital visit.
This article is for general information only and is not medical advice. Consult a qualified doctor or registered dietitian before making dietary changes, especially if you have a kidney condition, low blood pressure, diabetes, or are pregnant.
Related reading: Best fruits for juicing in India · 8 detox juice recipes for a portable juicer · How to clean a blender in 30 seconds