Calories in Barley
Updated July 2026 · Reviewed by CaloriesCalc Team · Source: USDA FoodData Central
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Nutrition Facts
* % Daily Value based on a 2,000 kcal diet.
Vitamins & Minerals — per 100g
| Nutrient | Amount | % Daily Value | Bar |
|---|---|---|---|
| Manganese | 0.88mg | 38% | |
| Selenium | 13.8µg | 25% | |
| Niacin (B3) | 2.1mg | 13% | |
| Thiamine (B1) | 0.13mg | 11% | |
| Phosphorus | 54mg | 4% | |
| Magnesium | 22mg | 5% | |
| Iron | 1.3mg | 7% | |
| Vitamin B6 | 0.12mg | 7% | |
| Potassium | 93mg | 2% | |
| Zinc | 0.82mg | 7% |
Calories in Barley by Weight
| Weight | Calories | Carbs | Protein | Fiber |
|---|
Macronutrient Breakdown — per 100g
Net carbs: 24.4g/100g. GI ~28-31 — lowest of any common grain. Hull-less or whole-grain barley has more fiber than pearled barley. Pearl barley takes ~45 min to cook.
Micronutrient Highlights
Barley Health Benefits
Highest Beta-Glucan of Any Grain
Barley contains more beta-glucan per gram than oats — both share FDA-approved health claims for cardiovascular risk reduction. A 2016 Cochrane meta-analysis of 11 trials found barley significantly reduced LDL by 7.1% and total cholesterol by 5.0%. Beta-glucan forms viscous gel in the digestive tract capturing cholesterol-containing bile acids, forcing the liver to use blood cholesterol to produce new bile.
Lowest Glycemic Index of Any Grain
GI 28-31 — lowest of any commonly available grain, far below oats (55), quinoa (53), brown rice (68), or white rice (73). Clinical trials consistently show barley produces lower blood glucose and insulin responses than any other grain. Swedish research found eating rye bread with barley for 3 days significantly reduced subsequent morning blood glucose.
Gut Microbiome Benefits
Barley beta-glucan is fermented by gut bacteria to produce short-chain fatty acids — particularly propionate (signals liver to reduce glucose production) and butyrate (nourishes colon cells, anti-cancer). Regular barley consumption significantly increases Bifidobacterium populations — beneficial bacteria linked to healthy immune function.
Most Filling Grain
Research consistently finds barley the most filling grain. A Nutrition Journal study found barley bread produced 50% greater satiety than white wheat bread at equal calories. The combination of high fiber, viscous beta-glucan slowing gastric emptying, and satiety hormone production makes barley exceptionally effective at reducing hunger and subsequent calorie intake.
Barley vs Other Grains — Calorie Comparison
Is Barley Suitable for Your Diet?
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Frequently Asked Questions
Sources
Nutrition values from USDA FoodData Central. Not medical advice.