By Balveer Singh Rathore, Editor · Last updated: September 26, 2026 · How we write
No drink burns fat by itself. There’s no miracle weight-loss drink. What helps is swapping high-calorie drinks for low- or zero-calorie ones. Plain water is best, and drinking about 500 ml of water before meals led to modestly greater weight loss in small trials. Green tea, lemon water and herbal teas are fine choices, but their fat-burning effects are small or unproven.
This article is general information, not medical advice. If you have a health condition, are pregnant or take medication, talk to your doctor before changing your diet, exercise or supplements. Read our disclaimer.
Why drinks matter for weight loss
Drinks can add a surprising number of calories without making you feel full: sweetened tea and coffee, juices, soft drinks, energy drinks, milkshakes and alcohol. The World Health Organization recommends keeping free sugars below 10% of your daily calories, and sugary drinks are one of the easiest places to cut back. Changing what you drink is often more useful than adding a special drink.
What the evidence says about popular weight loss drinks
| Drink | What research suggests | Verdict |
|---|---|---|
| Plain water | Replacing sugary drinks with water cuts calories. In small trials, drinking about 500 ml of water before meals led to modestly greater weight loss. | Best everyday choice |
| Green tea | A Cochrane review found green tea preparations produced a small weight loss in overweight adults that wasn’t likely to be clinically important. | Fine unsweetened, not a fat burner |
| Lemon water (warm or cold) | No good evidence it burns fat. It’s a pleasant, low-calorie way to drink more water. | Good swap, no magic |
| Black coffee | Low in calories without sugar and cream. Caffeine has only small effects on weight. | Fine in moderation |
| Lemon and honey | Honey is still sugar. A tablespoon adds about 60 calories. | Keep honey small or skip it |
| Detox and “fat-burner” drinks | No reliable evidence. Some contain laxatives, stimulants or lots of sugar. | Avoid |
4 simple low-calorie drinks to try
1. Lemon, mint and cucumber water
Add a few slices of lemon and cucumber and a handful of mint leaves to 1 litre of water. Chill for an hour. It has almost no calories and makes plain water more appealing.
2. Unsweetened green tea
Steep a green tea bag or 1 teaspoon of leaves in hot (not boiling) water for 2–3 minutes. Add lemon or ginger instead of sugar. Keep to a few cups a day if you’re sensitive to caffeine.
3. Jeera (cumin) water
Boil 1 teaspoon of cumin seeds in 2 cups of water for 5 minutes, strain and sip warm. It’s a traditional, calorie-free drink in many Indian homes. There’s no strong evidence it burns fat, but it can replace a sugary tea.
4. Spiced buttermilk (chaas)
Blend 1/4 cup plain curd with 3/4 cup water, a pinch of roasted cumin, salt and chopped coriander. It’s low in calories, has some protein, and is a much better choice than sweet lassi or soft drinks.
Easy swaps that cut calories
- Sweet chai (2 tsp sugar) → chai with less sugar, or none
- Soft drink → sparkling water with lemon
- Packaged juice → a whole fruit and a glass of water
- Sweet lassi → salted chaas
- Cold coffee with ice cream → iced black coffee with a splash of milk
When to drink water for weight loss
- A glass of water about 30 minutes before main meals may help you feel fuller.
- Keep a bottle nearby. Thirst is sometimes mistaken for hunger.
- Drink more in hot weather and when you exercise.
- If you have kidney or heart problems, ask your doctor how much fluid is right for you.
Drinks help most as part of a bigger plan. Pair them with a balanced diet plan and regular exercise.
Frequently asked questions
Is there a miracle drink for weight loss?
No. No drink can burn body fat by itself. Drinks help weight loss mainly by replacing higher-calorie options, such as swapping soft drinks, juice or sweet tea for water. Weight loss comes from an overall calorie deficit, regular activity and sleep, not from a single recipe.
Does lemon water help you lose weight?
Lemon water doesn’t burn fat, and there’s no good evidence it speeds up metabolism. It can still help indirectly: it’s nearly calorie-free, so drinking it instead of sugary drinks lowers your calorie intake. If lemon makes water more enjoyable and helps you drink more, it’s a good habit.
Is green tea good for weight loss?
Green tea can be part of a healthy diet, but its effect on weight is small. A Cochrane review found green tea preparations led to a small loss in overweight adults that was unlikely to matter clinically. Drink it unsweetened as a low-calorie choice rather than as a fat burner.
Which drink is best at night for weight loss?
Water or a caffeine-free herbal tea such as chamomile is a good choice at night. Neither burns fat, but they’re calorie-free and won’t disturb sleep the way caffeine can. Good sleep supports appetite control, which helps weight management more than any bedtime drink.
How much water should I drink to lose weight?
There’s no single number for everyone, as needs depend on body size, climate and activity. Drinking water regularly through the day, and a glass before meals, is a reasonable habit. Small trials found about 500 ml before meals helped modestly. People with kidney or heart conditions should follow their doctor’s advice.
Sources
- World Health Organization: Healthy diet fact sheet
- Dennis EA et al. Water consumption increases weight loss during a hypocaloric diet intervention in middle-aged and older adults. Obesity, 2010
- Jurgens TM et al. Green tea for weight loss and weight maintenance in overweight or obese adults. Cochrane Database of Systematic Reviews, 2012
- NIH Office of Dietary Supplements: Dietary supplements for weight loss