Northwoods Bran Muffins Soy Free
The intuitive answer is that it must worsen the GI value because it introduces air into the matrix. But according to researchers in New Zealand the leavening agents used in making bread do not have any impact on the GI of the bread. Types of bread There are hundreds of different breads in the world. Here are a few of the most common. Notice the subtle differences which may or may not be designed to confuse the consumer. White bread is made from refined flour ie grain from which the bran and germ have been removed so that it only contains the endosperm (the central core of the grain). By contrast wholemeal bread is made from the whole of the wheat grain (endosperm bran and germ) ie from unrefined flour. Brown bread is not the same as wholemeal bread.
Bread and the glycemic index The glycemic index rates foods on a scale of 1 to 100 based on how the foods affect your blood glucose levels. A rating of less than 55 is considered low 56 to 69 medium and 70 plus high. Bread ranges from 34 to 73 or more depending on the kind of grains used to make it. Bread with a low rating will be broken down more slowly in your gut giving you a steady increase in your blood sugar level. Bread with a GI value of 70 or more will cause your blood glucose to spike ie to surge and then drop suddenly. Labels for bread do not usually show whether bread has a low GI value. However you can usually estimate whether the GI value is low or not by checking the ingredients. These are usually listed in descending order by weight.
Whole grains or refined grains? When cereal grains such as wheat are harvested they are surrounded by a tough protective coating called a husk. Before you can eat the grains the husk has to be removed. This is done by threshing (beating the grains) and winnowing (blowing away the chaff ie the broken off bits of husk). The grain without its husk is called a groat. It consists of three main parts: the endosperm germ and bran. The endosperm is the main tissue inside the grain and provides nutrition in the form of starch protein and oils. The germ is the embryo the reproductive part that germinates and grows into a plant. It is surrounded by the endosperm. The germ contains several essential nutrients. Wheat germ for example is a concentrated source of vitamin E folate phosphorus thiamine zinc and magnesium essential fatty acids and fatty alcohols. Bran is the hard outer layer of grain. It is rich in dietary fibre and essential fatty acids and contains starch protein vitamins and minerals.