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High soluble fiber diet Q&A

The American diet is notoriously deficient in dietary fiber. To make up for the deficiency, foods such as soy and oatmeal have been routinely introduced to supplement it with soluble fiber.
Most foods contain a mixture of soluble and insoluble fiber, which together make up the dietary fiber family. Soluble fiber is different from insoluble fiber and can cause disorders such as IBS (irritable bowel syndrome) and trigger diarrhea. Insoluble fiber plays little or no role in the regulation of blood glucose or lowering of cholesterol.

A diet high in soluble fiber is beneficial for several reasons. Soluble fiber ingested in large amounts can decrease blood cholesterol. Soluble fiber is also beneficial in moderating levels of blood glucose. When consumed in large amounts, soluble fiber slows glucose absorption from the small intestine.

What is soluble fiber?
What are the benefits of high soluble fiber diet?
What are the health benefits of soluble fiber approved by FDA?
How do soluble fibers lower cholesterol?
How does soluble fiber regulate blood sugar?
How does soluble fiber help control diabetes?
Can high soluble fiber diet help control obesity?
How can soluble fiber help Irritable Bowel Syndrome?
How can soluble fiber help hypoglycemia?
What is the downside of soluble fiber?
What are the natural food resources of soluble fiber?
Can I increase my intake of soluble fiber without increasing my calorie intake?
How can I make konjac foods myself?

What is soluble fiber?
Soluble fiber comes from the storage materials of the plant used to store water.
Soluble fiber dissolves and thickens in water, and can form a gel, include gums, pectins, mucilages.
There are three major properties of water-soluble fiber, namely, water-holding ability, viscosity and ferment ability. Soluble fiber attracts water and turns to gel during digestion. Most soluble fibers are completely fermented, except psyllium (soluble fiber) which is only partially fermented.
Gum, pectin, mucilage and some kinds hemicelluloses are soluble fibers.

What are the benefits of high soluble fiber diet?
Independent studies indicate that soluble fiber may help lower blood cholesterol, a risk factor for cardiovascular disease.
A diet rich in soluble fiber has numerous health benefits such as its effectiveness in controlling obesity, stroke, diabetes, cancer and gastrointestinal disorders
.

What are the health benefits of soluble fiber approved by FDA?
The US Food and Drug Administration has authorized the following claims that food manufacturers can place on their labels:

  • Diets low in saturated fat and cholesterol and rich in fruits, vegetables and grain products that contain fiber, particularly SOLUBLE fiber, may reduce the risk of coronary heart disease.
  • Diets low in saturated fat and cholesterol that include 3g of soluble fiber from whole oats per day may reduce the risk of heart disease.
  • A low-fat diet rich in fruits, vegetables and whole grain containing fiber (particularly SOLUBLE fiber) may lower blood cholesterol levels and reduce risk of heart diseases. This type of diet may also reduce the risk of some types of cancer.
  • Diets low in saturated fat and cholesterol that include a daily intake of soluble fiber from whole oats or psyllium seed may reduce the risk of heart disease.

How do soluble fibers lower cholesterol?
Independent medical research has concluded that water-soluble fiber appears to have a greater potential to reduce post pardinal blood glucose, insulin, and serum lipid levels as compared to insoluble fiber.
Soluble fiber has been scientifically proven to reduce blood cholesterol levels, which may help reduce your risk of heart disease.
Glucomannan has the highest viscosity among dietary soluble fiber. That makes it one of the most efficient soluble fibers for reducing cholesterol levels.

How does soluble fiber regulate blood sugar?
  • Diets low in saturated fat and cholesterol that include a daily intake of soluble fiber from whole oats or psyllium seed may reduce the risk of heart disease.
  • Soluble fiber slows the passage of food into the intestine, leading to greater control over the amount of glucose entering the blood stream.
  • Higher consumption of sugary foods can cause drastic highs and lows in your insulin levels. By controlling blood sugar, soluble fiber takes the edge off your cravings. This makes it a lot easier to avoid snacking on high calorie foods.
  • It improves mineral absorption by slowing down the passage of food into the colon. Better mineral absorption leads to smooth functioning of many enzymes and hormones, which play an active role in effective digestion and absorption.

How does soluble fiber help control diabetes?
Soluble fiber along with complex carbohydrates (starches) can make the hormone insulin work better. This allows patients to take less diabetes medication while keeping their blood sugar normal. Persons with diabetes often have sharp rises of blood sugar following meals. Increased soluble fiber in meals slows down the release of food into the intestine and keeps the blood sugar from rising rapidly.

Can high soluble fiber diet help control obesity?
Soluble fiber has a 3-way mechanism for controlling obesity

  • Fiber is the only component of food that makes a person feel full without contributing calories.
  • Soluble fiber also takes the edge off your cravings for snacks by effectively controlling your blood sugar. It gives an indirect boost to your fat metabolism by attaching to fat and reducing the ratio which is stored as fat deposits.
  • Soluble fiber displaces fat and sugar calories that may contribute to weight gain.

How can soluble fiber help Irritable Bowel Syndrome?
Insoluble fiber and soluble fiber have totally different effects on IBS.
Soluble fiber is the single greatest dietary aid for preventing IBS symptoms as well as relieving them once they occur.
Always eat soluble fiber first, eat soluble fiber whenever your stomach is empty, and make soluble fiber foods the largest component of every meal and snack. 
Konjac food consisting of glucomannan and water only, are the ideal food for IBS.
Insoluble fiber can induce IBS and diarrhea.
Never eat insoluble fiber on an empty stomach, in large quantities at one sitting, or without soluble fiber. 

How can soluble fiber help hypoglycemia?
Soluble fiber helps hypoglycemia by delaying gastric emptying, slowing glucose absorption, and minimizing drastic blood glucose swings.

What is the downside of soluble fiber?
A high-fiber diet causes gas because the carbohydrates in high-fiber foods cannot be completely digested in the stomach and small intestine.

What are the natural food resources of soluble fiber?
Soluble fiber is found in oats, oatmeal, oat bran, beans, legumes, barley, citrus fruits and certain fruits, psyllium, vegetable gum include konjac gum, pectin, guar gum and gum arabic, to name a few. Oats have the highest proportion of soluble fiber among cereals.
Usually, soluble fiber is hard to get from foods. Normal food has a very small percentage soluble fiber. The cereal containing highest level of soluble fiber is oat bran, which has about 14% soluble fiber. All other food grains contain much less soluble fiber than oat bran.
Glucomannan is soluble fiber derived from the konjac plant (tuber). Fresh konjac contains an average of 13% dry matter, 64% of the dry matter is glucomannan, 30% is starch. That makes Glucomannan the richest soluble fiber resource in nature.
Glucomannan has the highest water holding capacity and the highest molecular weight among all dietary fibers. These properties help to increase its effectiveness against stroke, cancer, diabetes and gastrointestinal disorders.

FIBER CONTENT OF FOODS

Serving Size

Total Fiber (g)

Soluable Fiber (g)

Insoluble Fiber (g)

Breads, Cereals, and Pasta

White bread

1 slice

0.53

0.03

0.5

Rye bread

1 slice

2.7

0.8

1.9

Whole grain bread

1 slice

2.9

0.08

2.8

French bread

1 slice

1.0

0.4

0.6

Dinner roll

1 roll

0.8

0.03

0.8

White rice

1/2 cup cooked

0. 5

0.5

0.0

Brown rice

1/2 cup cooked

1.3

1.3

0.0

Egg noodles

1/2 cup cooked

0.8

0.3

0.8

Spaghetti

1/2 cup cooked

0.8

0.02

0.8

Bran (100%) cereal

1/2 cup

10.0

0.3

9.7

Oats, whole

1/2 cup cooked

1.6

0.5

1.1

Corn grits

1/2 cup cooked

1.9

0.61

0.3

Graham crackers

2

1.4

0.04

1.4

Rye wafers

3

2.3

0.06

2.2

Popcorn

3 cups

2.8

0.8

2.0

 

Fruits

Apple

1 small

3.9

2.3

1.6

Apricots

2 medium

1.3

0.9

0.4

Banana

1 small

1.3

0.6

0.7

Blackberries

1/2 cup

3.7

0.7

3.0

Cherries

10

0.9

0.3

0.6

Grapefruit

1/2 fruit

1.3

0.90

0.4

Peach

1 medium

1.0

0.5

0.5

Pear

1 small

2.5

0.6

1.9

Pineapple

1/2 cup

0.8

0.2

0.6

Plums

2 medium

2.3

1.3

1.0

Strawberries

3/4 cup

2.4

0.9

1.5

Tangerine

1 medium

1.6

1.4

0.4

 

Legumes

 

 

 

 

Kidney beans

1/2 cup cooked

4.5

0.5

4.0

Lima beans

1/2 cup cooked

1.4

0.2

1.2

Pinto beans

1/2 cup cooked

3.0

2.2

0.7

White beans

1/2 cup cooked

4.2

0.4

3.8

 

Vegetables

 

 

 

 

Broccoli

1/2 cup cooked

2.6

1.6

1.0

Lettuce

1 cup raw

0.5

0.2

0.3

Parsnips

1/2 cup cooked

4.4

0.4

4.0

Peas

1/2 cup cooked

5.2

2.0

3.2

Potatoes

1 small

3.8

2.2

1.6

Squash, summer

1/2 cup cooked

2.3

1.1

1.2

Zucchini

1/2 cup cooked

2.5

1.1

1.4

 

Oats have the highest proportion of soluble fiber of any grain.

High Fiber Foods
(per 100 grams)

Total Fiber
(grams)

Water-Soluble
Fiber  
(grams)

Soluble fiber percentage

Oat Bran

27.8

14.0

14.0%

Rolled Oats

13.9

7.7

7.7%

Cornflakes

12.2

7.2

7.2%

Grapenuts

13.0

5.6

5.6%

Pinto, Kidney & Lima Beans

8.7 ~ 10.1

5.6

5.6%

Corn

3.3

1.8

1.8%

Apple

2.0

0.9

0.9%

Orange

2.0

0.6

0.6%

Banana

1.8

0.8

0.8%

 

Vegetable gum
Most vegetable gum is used as food additives in food industry, usually about less than 1% gum in food needed. Sources of vegetable gum include Carrageenan , konjac gum (glucomannan), locust bean gum, pectin, guar gum, gum arabic.
For more information, visit:
Konjac Gum http://www.glucomannan.com
Gum Arabic http://www.orst.edu/food-resource/gums/arabic.html
Carrageenan http://www.orst.edu/food-resource/gums/carr.html
Guar gum http://www.orst.edu/food-resource/gums/guar.html
Locust bean gum http://www.orst.edu/food-resource/gums/bean.html
Petin vegetable gums http://www.orst.edu/food-resource/gums/pectin.html
Xanthan gums http://www.orst.edu/food-resource/gums/xanthan.html

Can I increase my intake of soluble fiber without increasing my calorie intake?
Regular food has a very small percentage soluble fiber. In order to meet your daily requirement of soluble fiber, you need to increase the intake of calories in the form of carbohydrates such as sugar and starch. This is the root cause of weight gain.
On the other hand, Glucomannan is a very pure form of soluble fiber with zero calories. It enables you to increase your intake of soluble fiber without adding extra calories to your diet!
The primary component of the konjac root is glucomannan, a soluble fiber consisting of glucose and mannose subunits. Glucomannan is a high molecular weight polysaccharide consisting primarily of mannose and glucose sugars and is a source of soluble dietary fiber.
Glucomannan is nature’s most viscous soluble fiber, with the highest water holding capacity, and largest molecular weight among any dietary fiber.
Konjac foods are made of glucomannan derived from the tuber (root) of konjac plant, which originated in China and Japan.
Konjac foods has been used for more than 2,000 years in China and Japan as part of a healthy diet. In the United States konjac flour has been used as a thickening and gelling agent in processed foods for many years.
With konjac food in your diet, you can enjoy benefit of soluble fiber in your diet without adding any extra calories or undesirable colors or flavors. It is the ideal food for diabetes, heart disease, obesity and IBS.
Konjac foods are the healthier, tastier and more convenient way to

  • Eat healthy without making drastic changes to your eating habits
  • Find tastier, convenient and affordable alternatives to ‘health foods’
  • Fight flab and control ‘bad’ cholesterol
  • Discover natural ways to prevent stroke, cancer, diabetes and painful gastrointestinal diseases such as constipation, gallstones and IBS.

How can I make konjac foods myself?
You can easily prepare konjac foods at home using the following simple recipe!
Ingredients:
A) 1 tablespoon of glucomannan (which contains about 6 grams of soluble fiber.)
B) ¼ teaspoon of Pickling lime. Pickling lime is food grade lime.
Food grade lime is
mild alkali. Its main component is calcium Hydroxide.

You can purchase pickling lime and glucomannan from:
Mrs Wages brand Pickling lime
Ball 100% Natural® Pickling Lime
Konjac glucomannan powder

Procedure:
Add 1 tablespoon of konjac flour (glucomannan powder) into water bath, then add two cups of water. Stir continuously and bring it to boiling. Keep boiling for about 3 min.

How to prepare the limewater: In a separate vessel, add 1/4 teaspoon of pickling lime into 5 tablespoons of water. Mix well. This limewater is necessary to induce gel formation in glucomannan.
Add limewater into the boiling bath and continue stirring for about 5 minutes without taking it off the flame.
A thermally stable (non-reversible) gel is formed after the mixture is cooled down.
You can cut this gel into small pieces, dip in water or steam about 3-5 minutes and then cook in the way you like. You can add various vegetables and meat according to your preference,You can also add a flavored dressing and enjoy a calorie-free snack! Konjac foods can be fried, baked, stewed, braised and also used as a cold dressing with a sauce.  
Commercial konjac foods can be made into many different styles and shapes, thread, ball, patch, hollow, cakes, noodles, slices, chips, tofu. Commercial konjac foods can be found on some Asian super market, or can be found more information online konjac foods

You can also add glucomannan gel to soups, puddings, gravies etc for increasing the soluble fiber content of your regular diet!

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