Showing posts with label total. Show all posts
Showing posts with label total. Show all posts

Wednesday, March 5, 2008

How to increase your fibre intake

Having established that fibre has definite benefits to offer, how can you make sure you get enough of it on a regular basis? Basically, there are three ways of upping your fibre intake, namely:through following a natural high-fibre diet (lots of fruit and vegetables, wholewheat bread, unrefined rice, etc)by eating fibre-enriched foodsby taking fibre extracts or supplements in the form of bran, pills, tablets, powders or granules.

It probably goes without saying that the first option is the healthiest. A natural high-fibre diet in which more unrefined plant foods and less foods of animal origin are eaten, is preferable not only because it ensures adequate intakes of vitamins and minerals, but because it also includes less animal fat - whereas the pill-popping method will merely increase the intake of indigestible fibre.

Eating fibre-enriched products - such as some breakfast cereals and home-baked muffins to which bran has been added - will certainly increase fibre intake, but will not necessarily rectify dietary imbalances. This is because most South African recipes for wholewheat home-baked products contain too much fat and sugar, which may improve the flavour but also markedly increases the kilojoules. However, it is possible to cut both the fat and sugar content to healthier levels when baking at home.

Diet Start

Fibre extracts are useful in the treatment of disease. They should only be used for medical reasons and not as foods, and must be taken under the guidance of a physician or dietitian. Insoluble extracts such as bran should always be used in combination with adequate water intake to treat constipation and related diseases. Soluble extracts, such as konjac-glucomannan, pectin or guar gum, are used to lower blood cholesterol levels and to control glucose levels in diabetic patients.

How much is enough?

Recommendations for fibre intake are based on those of developed populations in the past (before the escalation of the diseases of affluence) and on intakes of population groups at low risk for these diseases - such as rural, less developed populations and vegetarians.

On average, affluent Western populations presently consume 10 to 20g total dietary fibre per day; it has been recommended that this should be increased to between 30 and 40g per day. Our own research has shown that white South Africans on a typically Western diet eat approximately 2g total dietary fibre per 1000 kilojoules (kJ) per day - a figure which should be doubled. Based on this recommendation, a fairly active adult woman with a daily energy need of between 8000 and 9000 kJ should take in 32 to 36g dietary fibre per day, while a moderately active adult man with an energy need of 9000 to 11000 kJ should consume 36 to 44g fibre.

The table below shows that you can obtain approximately 40g of total dietary fibre by eating six small to medium portions of wholegrain cereals (which include wholewheat bread, brown rice and unrefined breakfast cereals), one medium portion of legumes (beans, peas, lentils), three medium portions of vegetables and two medium portions of fruit per day.

Foods (and portion sizes) that will provide approximately 40 g total dietary fibre per day

Food

Portion
size

Total
amount (g)

Dietary fibre

(g) -

4 medium slices"wholewheat

bread

1 slice: 95 X 90 X 10 mm = 35 g

140

12,5

1 portion All




Bran Flakes

125 ml

25

7,5

1 portion cooked brown rice

125 ml

70

0,9

1 portion cooked dried beans

125 ml

100

7,4

1 portion cooked broccoli

125 ml

75

3,1

1 portion grated raw carrots

125 ml

95

2,4

1 portion mixed raw salad

125 ml

50

0,8

1 medium apple

52 X 66 mm

150

2,6

1 medium orange

65 X 70 mm

180

3,6

TOTAL

40,8

Saturday, November 3, 2007

Nutrition Facts Labels is KEY to Successful Dieting

Choosing foods wisely based on the information that you can glean from Nutrition Facts labels is key to successful dieting. At first, the label may seem awfully confusing, but if you know what to look for, interpreting a label is really pretty simple. See the list that follows for the skinny on the most important information featured on the Nutrition Facts label:

Calories: The calorie total is based on the stated serving size - so if you eat more or less than what the label lists as one portion, you need to do the math.

Diet StartDietary fiber: Choose the foods with the most fiber. Research shows that people who eat plenty of fiber also eat fewer calories. You get the most fiber in foods made from whole grains, such as cereals and breads. Fruits and vegetables have fiber, too. A food is considered to be high in fiber if it has at least 5 grams of fiber per serving.

Serving size: Notice how the food manufacturer's serving size compares to the size you usually eat. For example, does your normal serving of ice cream measure more than the standard %z cup? And remember that serving amounts are given in level measuring cups or spoons. Servings per container can help you estimate sizes if a measuring cup or spoon isn't handy.

healthy diet and nutritionTotal fat: For dieting, keep total fat to less than about 20 to 30 percent of calories. For someone who eats 1,500 calories a day, that's no more than 33 to 50 grams. Remember, the Percentage Daily Value numbers on Nutrition Facts labels are based on 65 grams of fat a day (30 percent of total calories) and calculated on a 2,000-calorie-per-day diet.

Trans fatty acid is the newest item to be added to the Nutrition Fact label. By January 2006, all foods required to carry nutrition labeling will have to state the amount of trays fatty acids in their product. Like saturated fat, trans fat is a type of fat. The grams of these fats, and their calories, are already accounted for in the total fat.

To quickly figure the number of grams of fat that 30 percent represents, start with your total number of daily calories. Drop the last digit and then divide the remaining number by 3. So if you allow yourself 1,800 calories for the day, divide 180 by 3 to get 60 grams of fat as your daily limit.

... andjoyohoxing