There
are lot many misconceptions running between people about the difference
between White flour and Whole wheat flour. White flour is made from
heavily refined and processed wheat grains, while whole-wheat flour is
made from grains that have not undergone heavy processing. Whole-wheat
and white flours differ in their nutritional value.
Fiber Content
One
of the primary nutritional differences between whole-wheat and white
flour
is the food’s fiber content. Dietary fiber has a number of health
benefits -- it prevents constipation, lowers blood cholesterol and might
help you lose weight, according to Colorado State University. The
refining process associated with making white flour
separates the fiber-rich brain from the rest of the grain, so white
flour typically contains less fiber than its whole-grain counterpart.
For example, 1/2 cup of white flour contains 1.3 grams of fiber, while
an equal serving of whole-wheat flour contains
6.4 grams. As a result, selecting foods that contain wheat flour helps
you reach your dietary fiber intake goal -- 28 grams daily if you follow
a 2,000-calorie diet, according to Colorado State University.
Effect on Blood Sugar
Any
carbohydrate-containing food -- including those containing either
whole-wheat
or white flour -- has some effect on your blood sugar. After you eat a
meal, your body breaks the carbohydrates from your food into glucose, a
simple sugar. This glucose then enters your bloodstream, so it can
circulate throughout your body and provide fuel
to your cells. The glycemic index, or GI, of a food serves as a measure
of how quickly this process occurs. High-GI foods lead to rapid blood
sugar spikes and subsequent crashes that leave you hungry and irritable
shortly after eating. Low-GI foods absorb
more slowly to prevent blood sugar spikes and crashes, so you’re
satisfied for longer after your meal. Bread made with 100 percent
whole-wheat flour has a GI of 51, according to Harvard Medical School,
while bread made with white wheat flour has a GI of 71.
If you seek to regulate your blood sugar after a meal, choose foods
made with whole-wheat flour.
Vitamin Content
Whole-wheat
flour provides a nutritional advantage over some white flours
due to its vitamin content. Whole-wheat flour contains several
vitamins, including folate, riboflavin and vitamins B-1, B-3 and B-5.
Some types of white flour contain lower levels of these vitamins, since
the processing involved in making white flour destroys
the grains’ vitamin content -- for example, 1/2 cup of whole-wheat
flour contains 3 milligrams of niacin, while an equivalent portion of
white flour contains only 0.8 milligrams. To combat this, some food
manufacturers enrich their white flour with vitamins
to replace the nutrients lost during processing. As a result,
whole-grain flour often contains higher levels of vitamins than
unenriched white flour but roughly compares to vitamin-enriched white
flour. Check the nutrition label to determine if a bag of white
flour has added vitamins, and compare different brands of flour to
maximize your vitamin intake.
Eat More Whole-Wheat Flour
Making
a few easy substitutions in your diet helps you reap the nutritional
benefit of whole-wheat flour without sacrificing the foods you love.
When you bake at home, try using a mix of whole-wheat and white flours
for cookies, muffins and cakes, and opt for 100-percent whole-wheat
flour to make homemade bread. At the grocery store,
check your bread labels to select loaves made with 100 percent whole
wheat -- this bread is made using whole-wheat flour, whereas those
labeled simply "whole-wheat" might contain a mix of whole wheat and
white flours. In the pasta isle, skip the white pasta
and opt for noodles made from a mix of white and whole-wheat flour.
Pasta made with 100-percent whole wheat feels gummy after cooking thanks
to the pasta's fiber content, so choosing pasta made using some
whole-wheat flour boosts the nutritional content of
your meal without sacrificing texture.