The glycemic index of bread depends on the types of grains and refined sugars used during the baking process.
Care should be taken to select breads with a low GI value, which includes a number of popular sourdough and rye breads.
Certain types of bread, particularly those with larger, coarser grains, our sourdough breads whose acidity counteracts the rapid release of glucose, are excellent choices.
Take care when choosing regular grocery store breads however. Most of these are heavily refined and ‘enriched’. Look for coarse grains, seeds, and heavier blends!
The glycemic index (GI) is a measure of how quickly a carbohydrate-containing food raises blood sugar levels. Generally, bread made from refined white flour has a higher GI compared to bread made from whole grains. Here are some common types of bread and their GI scores:
- White bread – high GI score (70 or above)
- Whole wheat bread – medium GI score (56-69)
- Sourdough bread – lower GI score (50-69)
- Rye bread – lower GI score (40-59)
- Pumpernickel bread – lower GI score (41-46)
It’s important to note that the GI score is just one factor to consider when making food choices, and that other factors such as the amount and type of carbohydrate, fiber content, and overall nutritional value should also be taken into account.
Glycemic Index of Wheat Bread, White Bread, Sourdough |
Type of Bread | Glycemic Index Score |
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Dark Rye | 51 |
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French Baguette | 95 |
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Hamburger Bun | 61 |
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Kaiser Roll | 73 |
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Pita Bread – Whole Wheat | 57 |
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Sourdough | 52 |
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Fruit Bread | 53 |
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White Bread | 70 |
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Wonder Bread, White | 71 |
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Wheat Stoneground Bread | 53 |
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Whole Wheat | 69 |
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Bagel, plain, white | 72 |
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Wholegrain Bread | 40 |
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Multigrain Breads | 45 |
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English Muffin, Whole Grain | 45 |
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Oat Bread | 65 |
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Rye Bread | 50 |
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Bran Muffin | 65 |