📊 Full nutrition facts — per 100g
| Nutrient | Amount | % Daily value | Level |
|---|---|---|---|
| Calories | 354 kcal | 18% | |
| Carbohydrates | 73.5g | 24% | |
| Dietary fibre | 17.3g | 62% | |
| Beta-glucan | ~6g | — | |
| Sugars | 0.8g | — | |
| Glycaemic Index (GI) | 28 — Low | — | |
| Protein | 12.5g | 25% | |
| Selenium | 37.7µg | 54% | |
| Manganese | 1.9mg | 96% | |
| Phosphorus | 264mg | 26% | |
| Magnesium | 133mg | 33% | |
| Niacin (B3) | 4.6mg | 29% |
Based on Australian NRV. Source: FSANZ Australian Food Composition Database.
📈 Glycaemic index (GI)
💊 Key vitamins & minerals
✅ Health benefits
Barley contains approximately 6g of beta-glucan soluble fibre per 100g — even more than oats (4g/100g). Beta-glucan is clinically proven to reduce LDL cholesterol, with FSANZ approving a heart health claim for barley beta-glucan products. A daily intake of 3g beta-glucan (achievable from one serve of barley) significantly reduces LDL within 4–6 weeks.
Barley's GI of 28 is the lowest of any whole grain — lower than oats (55), brown rice (50) or quinoa (53). The viscous beta-glucan gel dramatically slows starch digestion and glucose absorption. Regular barley consumption is associated with reduced HbA1c and improved insulin sensitivity in type 2 diabetes management.
Barley beta-glucan is one of the most effective prebiotics available — selectively feeding Bifidobacterium and Lactobacillus species while increasing short-chain fatty acid production (particularly butyrate, which protects the colonic epithelium). Population studies consistently associate whole grain barley consumption with reduced colorectal cancer risk.
Barley provides 37.7µg of selenium per 100g — 54% of the daily requirement. Selenium is essential for thyroid hormone synthesis, antioxidant enzyme production and immune defence. Australia has selenium-poor soils in many regions, making dietary sources like barley particularly important.
⚠️ Who should limit or avoid
Barley contains hordein — one of the four storage proteins collectively called gluten. People with coeliac disease must strictly avoid barley, including barley flour, malt, malt extract, malt vinegar, beer and most Worcestershire sauces which contain barley malt. Barley is one of the three grains (wheat, rye, barley) that must be avoided on a gluten-free diet.
People with non-coeliac gluten sensitivity or wheat intolerance (not tested for coeliac) should also avoid barley. The gluten in barley is sufficient to trigger symptoms in gluten-sensitive individuals.
Barley's exceptional blood-glucose-lowering effect can be additive with diabetes medications. Monitor blood glucose when significantly increasing barley intake while on insulin or oral hypoglycaemics.
🔬 Possible side effects
The high beta-glucan and total fibre content (17.3g/100g) can cause temporary bloating in people accustomed to low-fibre diets. Start with smaller portions (25–30g dry) and increase gradually over 2 weeks.
Barley gluten triggers severe intestinal damage in coeliac disease. Even small amounts cause ongoing villous atrophy. This is the most significant health risk associated with barley consumption.
🛒 How to buy barley
Hulled barley retains its outer bran layer — higher in fibre, vitamins and minerals. Pearl barley has had the bran removed and is more tender with a creamier texture and faster cooking time (40–50 min vs 60–90 min). For maximum nutrition choose hulled; for everyday convenience choose pearl. Pearl barley is more widely available in Australian supermarkets.
Fresh barley should look plump, uniform and slightly golden. Avoid shrivelled, dusty or broken grains which indicate old stock or poor storage. Check best-before dates — fresh barley cooks evenly and has better flavour than old stock.
Pearl barley can replace rice in most dishes — it works beautifully in soups, stews, salads and as a risotto-style dish (called barley risotto or orzotto). It absorbs about 3 times its volume in liquid. No soaking required for pearl barley; hulled barley benefits from overnight soaking to reduce cooking time.
🧊 Storage tips & shelf life
Dry barley is extremely shelf-stable. Store in a sealed glass jar or airtight container in a cool dry pantry. The low oil content means it does not go rancid like oats or flax — pantry storage is entirely appropriate.
Cooked barley keeps well in the fridge. Store with a little cooking liquid to prevent the grains drying out and sticking together. Excellent for batch cooking — add to soups, salads and grain bowls throughout the week.
Cooked barley freezes very well — texture is slightly softer after freezing but perfectly suitable for soups and stews. Freeze in 200g portions. Add directly to hot dishes from frozen or thaw overnight in fridge.
📖 About barley — complete guide
Barley's history stretches back at least 10,000 years to the Fertile Crescent — it was among the first crops domesticated by agricultural societies and remained the primary bread grain in Europe for centuries before wheat became dominant. The Romans fed barley to gladiators — calling them hordearii (barley men) — for its energy density and endurance benefits. Egyptian workers building the pyramids received barley as part of their food ration. Despite this ancient pedigree, barley has essentially disappeared from Australian home cooking in favour of rice and pasta — which is nutritionally unfortunate given its exceptional beta-glucan content and extraordinarily low GI.
The beta-glucan story for barley is even more compelling than for oats. Barley contains approximately 6g of beta-glucan per 100g versus oats' 4g — making barley the richest whole-grain source of this cholesterol-lowering compound. FSANZ has approved a specific heart health claim for barley products meeting beta-glucan content thresholds. A meta-analysis of 11 clinical trials found barley beta-glucan consumption significantly reduced total cholesterol by 0.30 mmol/L and LDL cholesterol by 0.27 mmol/L — a reduction comparable to low-dose statin therapy for some patients. The simultaneous effect on blood glucose regulation (GI 28) and cholesterol reduction makes barley uniquely valuable for metabolic syndrome management.