Barley
Hordeum vulgare · 大麦
Seeds & Grains. Middle Eastern & Unani, Chinese Medicine and Modern nutrition.
Also called Pearl barley, Hulled barley, Barley water, Talbina
Pinyin: dà mài
Spanish: Cebada
Sanskrit: यव (Yava)
Contains glutenBarley is a hardy grain eaten whole, pearled, as flakes or as flour. Its soluble fiber, called beta-glucan, is the part studied most for health.
Did you know? Barley was one of the earliest grains farmed in the Fertile Crescent, and ancient Egyptians brewed it into beer.
What it may help, and how strong the proof is
- Cholesterol. The FDA has allowed a heart health label claim for barley beta-glucan at 3 grams a day, based on trials that found lower LDL and total cholesterol. Heart events themselves have not been measured directly.See the research: 126 studies in peopleGood proof
- Blood sugar. Small trials in adults show that bread made with barley kernels lowers the blood sugar rise after a meal, compared with wheat bread. Most of these trials are short and small.See the research: 112 studies in peoplePromising proof
- Digestion & gut health. Sprouted barley, mai ya, is used in Chinese medicine to aid digestion of starchy foods. Modern trials of this use are lacking.See the research: 180 studies in peopleTraditional proof
Parts of the body
Heart & vessels, Liver, Pancreas & blood sugar, Gut & intestines, Stomach
Traditional use
In the Middle East and North Africa, barley has been made into bread and porridge for thousands of years. Talbina, a thin barley gruel often sweetened with honey, has long been eaten as a soothing food in Middle Eastern and Islamic tradition. In Chinese medicine, sprouted barley, called mai ya, is used to help digest starchy foods.
How it is classified
How people take it
Cook whole or pearled barley like rice, add it to soups and stews, or make porridge. Barley tea is a common drink in East Asia. Reaching 3 grams of barley beta-glucan a day takes a generous serving of whole barley or flakes, so check labels on barley products.
Food, tea and powder.
Where to get it
Barley is grown widely in Russia, Canada, France, Germany and Australia. It is sold as hulled or pearled barley, flakes, flour, malt and tea. Sprouted barley for Chinese herbal use, mai ya, is sold in herb shops.
Be careful
Barley contains gluten, so it is not safe for people with celiac disease or wheat-gluten allergy. A sudden large increase in fiber can cause gas and bloating. Mai ya should be avoided during breastfeeding, because it can reduce milk supply, and large doses are best avoided in pregnancy. Barley in food amounts is generally fine in pregnancy.
Avoid if: celiac disease; gluten sensitivity; breastfeeding (mai ya); pregnancy (large doses of mai ya).
Mixing with other things
- Works well together
Barley and lentil soup is a classic pairing across the Middle East.
- Works well together
Both are whole grains rich in beta-glucan, the soluble fiber linked with lower LDL cholesterol.
- Worth knowingDiabetes medicine (metformin, insulin, glipizide, Ozempic)
Barley fiber can blunt blood sugar rises after meals, so people on diabetes medicines should watch their readings if they change their diet.
The honest take
Barley is a real, food-based source of beta-glucan fiber, with good evidence for lowering LDL cholesterol. The blood sugar evidence comes from small trials. Mai ya and talbina rest mainly on traditional use and should not replace medical care.
Sources
Each “See the research” link opens PubMed, the U.S. National Library of Medicine's index of medical studies, showing only trials and reviews done in people. The number tells you how much a use has been tested, not whether it worked. The proof rating tells you that.
Study counts checked October 2026.