Rye is a remarkably nutritious whole grain with one of the lowest glycaemic responses of any cereal — rivalling barley for blood sugar management. It provides exceptional fibre (including the unique arabinoxylan prebiotic), meaningful protein, selenium and manganese. Rye is the basis of traditional Scandinavian crispbreads, German pumpernickel, Jewish rye bread and Scandinavian knäckebröd. Limited rye is grown in Australia — most is imported from Canada, Germany and Finland — but it is increasingly available in health food stores and artisan bakeries.
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Serving size:100g
338Calories (kcal)
75.9Carbs (g)
10.3Protein (g)
15.1Fibre (g)
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📊 Nutrition facts — per 100g
| Nutrient | Amount | % Daily value |
|---|---|---|
| Calories | 338 kcal | — |
| Carbohydrates | 75.9g | — |
| Dietary fibre | 15.1g | — |
| Sugars | 1.0g | — |
| Protein | 10.3g | — |
| Total fat | 1.6g | — |
| Glycaemic Index (GI) | 34 — Low | — |
Based on Australian NRV. Source: FSANZ Australian Food Composition Database.
📈 Glycaemic index (GI)
34
Glycaemic IndexLow GIWhole grain rye has a GI of approximately 34 — very low for a grain. Rye bread ranges from GI 41 (dense whole grain sourdough) to 65 (light rye). The high arabinoxylan fibre content dramatically slows starch digestion, making rye among the most glycaemically favourable grains.
0 · Low (<55)Medium (56–69)High (70+) · 100
✅ Health benefits
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Key health benefits
Blood sugar management (GI 34), gut microbiome (arabinoxylan prebiotic), satiety and weight management, heart health (fibre + beta-glucan), selenium for thyroid health.
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⚠️ Who should limit or avoid
⚠️ Coeliac disease (contains secalin — a gluten protein), gluten sensitivity, wheat/grain allergy. Note: rye gluten (secalin) is distinct from wheat gluten but equally harmful for coeliac disease.
⚕️ General nutritional information only — not a substitute for professional medical or dietary advice. Always consult your doctor or dietitian before significant dietary changes.
🧊 Storage tips
Whole rye grain: 1-2 years in sealed container. Rye flour: 3 months pantry, 6 months fridge — the higher oil content means it goes rancid faster than white flour. Rye bread: 5-7 days at room temperature (dense structure inhibits mould), 3 months frozen.
🇦🇺 Australian tip: Rye is available in Australian health food stores and bulk food retailers as whole rye berries, rye flakes and rye flour. Lowan Whole Foods and Bob's Red Mill (imported) are the main brands. For rye bread, artisan bakeries making genuine sourdough rye use long fermentation that significantly reduces GI and improves digestibility. Standard supermarket 'rye bread' often contains more wheat than rye — check the ingredient list for whole rye flour as the primary grain.
💡 Key facts about rye
🩸GI 34 whole grain — among lowest-GI grains; dense rye sourdough GI ~41
🦠Arabinoxylan fibre — powerful prebiotic; among best gut microbiome foods
🌾Contains gluten — not suitable for coeliac disease
🧠Rye consumption linked to better satiety and appetite control vs wheat
🇩🇰Staple grain of Scandinavia and Germany; basis of pumpernickel and crispbread
🇦🇺Limited Australian production; import from Canada, Germany and Finland
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