Does Barley Water Help With Weight Loss?

Partly: barley water may support weight loss if it replaces a higher-calorie drink and reduces your overall calorie intake. Evidence for barley water itself is limited; studies of barley cereal and concentrated barley fiber do not establish the drink’s effects. Use it unsweetened as part of a balanced eating pattern, rather than as a weight-loss treatment.

Does barley water help with weight loss?

Barley water can be a useful swap if you enjoy it in place of a sweetened drink. Whether that swap affects your weight depends on what else you eat and drink over time. Adding barley water to your usual intake without changing anything else may not help.

Barley water is not necessarily calorie-free. Starch and other components can pass into the water during cooking, and sweeteners or blended barley add more energy. The amount varies with the recipe, so do not assume it has the same calories as either plain water or the whole dry grain.

How could barley water help?

The most straightforward mechanism is substitution: an unsweetened drink can reduce calorie intake when it replaces a higher-calorie one and the difference is not made up elsewhere. Drinking enough fluid may also help you stay hydrated, although hydration alone does not cause weight loss.

Barley contains a soluble fiber called beta-glucan, which can form a gel in water and may contribute to fullness. Some soluble material can enter barley water, but its beta-glucan content depends on preparation and is not established by the studies below. Straining also removes much of the grain’s solid material, so the drink should not be assumed to provide the same fiber as a serving of barley.

What does the evidence show?

A 2025 randomized trial of barley cereal compared it with corn cereal in 30 adults over 6 weeks. The barley group lost a small amount of weight on average, while the corn group gained weight. This was a small, short study of cereal eaten with milk, not a trial of barley water.

An earlier randomized trial of concentrated barley beta-glucan compared two forms of the fiber in 90 adults. Over 6 weeks, weight decreased from baseline in the group taking one form and increased in the other; hunger also decreased. The trial tested supplements rather than the drink and did not compare them with plain water.

Together, these studies suggest that barley or its fiber may be worth studying further. They do not show that a typical glass of barley water produces meaningful weight loss.

How can you use barley water for weight loss?

Make barley water without added sugar and use it in place of a drink you would otherwise have. If you buy a prepared version, check the label for added sugar and calories; products can differ substantially.

Simple unsweetened barley water

• 1/4 cup (about 45 g) dry pearl barley
• 4 cups (about 950 mL) water

1. Rinse the barley under running water.
2. Bring the barley and water to a boil in a saucepan, then lower the heat and simmer until the barley is tender, following the package’s cooking instructions.
3. Strain the liquid into a clean container. Save the cooked barley for a meal if you like; it contains material removed from the drink.
4. Cool and refrigerate the barley water promptly in a covered container. Drink it within 24 hours for best flavor.

For another drink idea, try the ai infused water generator. You can serve barley water warm or chilled, but avoid treating it as a meal replacement: it does not provide the balance of nutrients a meal can offer.

Who should be careful?

Barley contains gluten. Avoid barley water if you have celiac disease or another condition requiring a gluten-free diet, or if you have a barley allergy. If you have a condition that requires a restricted fluid intake, ask your clinician how drinks fit into your plan.

Barley may cause digestive discomfort for some people, especially if the grains are blended into the drink. Stop using it and seek medical advice if symptoms are persistent or concerning.

What results are realistic?

Think of barley water as one optional choice, not a shortcut. A useful swap is one you can maintain alongside satisfying meals, physical activity and other habits that fit your circumstances. Weight can fluctuate, and the limited research cannot predict how much, if any, weight you will lose from drinking barley water.

The same caution applies to detox water for weight loss: drinks can support hydration, but they do not detox the body or make fat disappear. The liver and kidneys do most of the body’s detoxification; the lungs and gut also help eliminate waste, while sweat removes only trace amounts.