Dietary fiber has long been considered the panacea for constipation
and other gastrointestinal disorders like diverticulosis. Until
recently, most Americans were virtually unaware of fiber’s
other health benefits; but thanks to food label changes and an
increasing consumer awareness, more and more people are benefiting
from fiber’s powerful heart-health benefits.
The majority of us still don’t take full advantage of what
fiber has to offer. Health professionals recommend a minimum of
25 grams fiber each day, whereas the average consumer is taking
in roughly 14 grams. But there is still hope – read on to
find out how you can help reduce your heart-disease risk by fitting
more fiber in.
Let’s begin with a fiber review.
What
is Dietary Fiber?
Dietary
fiber is a complex carbohydrate that your body can neither digest
nor absorb. Although it is not considered a nutrient, fiber still
plays an important role in good health. There are two main types
of dietary fiber, insoluble and soluble. Each plays a unique role
in your body.
Insoluble fiber is generally referred to as "roughage".
Insoluble fiber promotes regularity and helps prevent constipation
and diverticulosis by adding bulk and softness to stools and decreasing
the time food spends in your intestines. Good sources of insoluble
fiber include wheat bran, whole-grain cereals, breads, pasta and
rice, and vegetables.
Soluble fiber is recognized as offering the greater heart-health
benefit. As soluble fiber passes through the intestines it forms
a gel, binding with certain digestive enzymes (bile acids) made
in the liver, and promoting their excretion as waste. Because
the liver uses cholesterol to make bile acids, it must draw additional
cholesterol from the blood in order to make more. The net result
is a reduction in cholesterol absorption and a decrease in total
and "bad" (LDL) cholesterol levels. Good sources of
soluble fiber include oats, oat bran, barley, legumes, psyllium
husks, pectin in fruits and some vegetables. For optimal cholesterol-lowering
results, consume at least three servings of foods from this list
each day.
Other
Health Benefits
Guidelines
for optimizing heart-health include achieving or maintaining a
healthy body weight. Fiber-rich foods can fit into any weight
loss plan; they are generally low in calories and fat, bulk up
in your stomach, and help you feel fuller after a meal. This means
fewer cravings for snacks during the day. Fiber-rich foods also
generally take longer to chew, helping to slow you down and reduce
your total calorie intake.
Soluble fiber can also regulate blood sugar levels. It is proposed
that soluble fiber slows the emptying of the stomach, resulting
in a slower release of sugar into the bloodstream. By helping
regulate blood sugars, soluble fiber may reduce the amount of
medication needed for persons with diabetes.
Let
the Food Label Guide You
Here are a few key points to consider when determining a food’s
fiber content:
-
Look
for the Health Claim
The Food and Drug Administration (FDA) approved two health claims
that allow food companies to promote the heart disease-fighting
benefits of whole grains on qualifying products. Choose often
foods boasting one of the following claims:
"Diets low in saturated fat and cholesterol and rich in
fruits, vegetables, and grain products that contain some types
of dietary fiber, particularly soluble fiber, may reduce the
risk of heart disease."
"Soluble fiber from foods such as (name of soluble fiber
source and/or food product) as part of a diet low in saturated
fat and cholesterol, may reduce the risk of heart disease."
-
Check
out the Label
The Nutrition Facts panel on food labels provides you with specific
amounts of dietary fiber per serving. Choose foods boasting
‘High Fiber’ most often.
‘High Fiber Food’: means the food product has 5
grams or more fiber per serving.
‘Good Source of Fiber’: means the food product has
2.5 to 4.9 grams fiber per serving.
‘More or Added Fiber’: means the food product has
at least 2.5 grams fiber per serving.
-
Not
All ‘Whole Grains’ Created Equal
Just because a bread or bagel says whole wheat doesn’t
mean it has adequate dietary fiber. In many cases, noted whole
wheat products have enriched or bleached wheat or white flour
as the main ingredient (meaning the grain used to make flour
has been stripped of it’s fiber). You should see the words
whole listed as part of the first ingredient of the product
(e.g. whole-wheat flour) to determine if it is truly a whole
grain. If not, consider making another choice.
-
Quick Guide
Luckily fruits, vegetables, nuts, seeds and beans are good sources
of fiber and don’t require food label reading to make
that determination. But because not all foods listed as whole
grain contain adequate fiber, it is your duty to become food
label savvy. Follow this quick guide when purchasing breads
and other grains:
Cereals – should contain at least 3-5 grams or
more fiber per serving.
Breads
– should contain at least 2 grams or more fiber per serving.
Crackers
– should contain at least 2 grams or more fiber per serving.
Rice
and Pasta – should contain at least 3 grams or
more fiber per serving.
Fitting
Fiber in Checklist
Use this as a checklist to ensure you are getting the recommended
25 or more grams of dietary fiber each day. Because most foods contain
both the soluble and insoluble fibers, focus on getting adequate
levels of all food sources of fiber to reap heart-health benefits.
1.
Aim for 4 or more servings of vegetables each day.
-
One
serving: ½ cup cooked vegetable, 1 cup raw.
-
Have
a large salad for lunch or dinner.
-
Enjoy
vegetable-based soups for a change.
-
Throw
cup-up veggies in a bag for a midday snack.
-
Dip
vegetables in a low-fat salad dressing.
-
Put
vegetables into marinara sauce instead of ground meat.
-
Have
at least one meatless, vegetable–based meal per week.
-
Fill
half your dinner plate with vegetables each day.
2.
Strive for 3 or more servings of fruit each day.
- One
serving: medium-sized piece of fruit, 1 cup most melons and berries,
2 Tbsp. raisins, ¼ cup most dried fruits, ½ cup
canned fruits.
- Top
your favorite cereal with berries or sliced bananas.
- Top
whole grain waffles or pancakes with fresh fruit.
- Snack
on fresh, canned (in own juice) or dried fruits throughout the
day.
- Add
a sweet touch to salads by adding raisins, grapes or mandarin
oranges.
- Use
fruit as a refreshing dessert.
- Throw
fruit, nuts and honey on top of nonfat yogurt for a yummy treat.
- Opt
for whole fruits instead of juice on most occasions; even juice
with pulp contains less fiber than the whole fruit.
3.
Consume a minimum of 3 servings of whole grains each day.
-
Start
the day off right with a bowl of high fiber cereal (cooked or
ready-to-eat). Choose barley or oats for optimal cholesterol-reduction.
-
Choose
brown rice over white.
-
Choose
whole wheat pasta over white.
-
Try
a new grain side dish each week like bulgur, barley or buckwheat.
-
Remember
to choose breads, pita, crackers and bagels containing whole
in the first ingredient.
4.
Incorporate beans, lentils, nuts or seeds into your daily eating
patterns.
- One
serving: ¼ cup or 1 ounce peanuts or tree nuts, ½
cup cooked beans or lentils, 2 Tbsp. seeds or peanut butter.
- Toss
garbanzo, kidney or navy beans onto a salad.
- Change
the pace and add roasted soybeans, walnuts or almonds to salads
or stir-fries.
- Enjoy
nuts or seeds with yogurt and a dash of honey.
- Replace
cooked beans or lentils for meat in your favorite recipe.
- Have
bean soup or meatless chili for lunch.
- Create
a homemade trail mix of nuts, seeds, dried fruit and wheat cereals.
- Enjoy
pureed bean dishes such as hummus or low-fat refried beans for
a change in texture.
However
you do it, strive to check off at least three of these four great
fiber goals each day. Don’t forget to drink plenty of fluids
(64 ounces for most healthy individuals) to avoid constipation.
Increasing your dietary fiber brings you one step closer to improved
heart-health. Enjoy the versatility and flavors these foods have
to offer. |