Depending on the manufacturer of the finished bread product you can expect to find the following GI and Nutritional values. White bread has the highest GI rating of the three and is also high in sodium and sugars. A general rule is that the whiter a food is, the more processing it has undergone.
Glycemic Index Ratings:
- Pumpernickel bread (80% rye kernels) 41 - 55
- Wholemeal rye bread 41 - 66
- Light rye bread 68
- Wholemeal bread 57 - 65
- White bread 69 - 87
Pumpernickel (1 slice)(2oz.)
Calories 150
Fat 1 g
Saturated Fat n/a
Cholesterol n/a
Sodium 310 mg
Carbohydrates 28 g
Fiber 2 g
Sugars 1 g
Protein 6 g
Rye (2oz.)
Calories 150
Fat 1.5 g
Saturated Fat n/a
Cholesterol n/a
Sodium 280 mg
Carbohydrates 29 g
Fiber 2 g
Sugars 2 g
Protein 6 g
White Bread (2oz.)
Calories 125
Fat 0 g
Saturated Fat n/a
Cholesterol n/a
Sodium 443 mg
Carbohydrates 26.1 g
Fiber 0 g
Sugars 5.7 g
Protein 3.4 g