Tuesday, June 17, 2008

Glycemic Load Diet

The Glycemic Load Diet

The Glycemic Load Diet, by Rob Thompson, MD is a refinement of earlier low-carbohydrate diets, and aims to reduce the glycemic load in the diet - the impact on blood glucose levels of a serving of a given food, as indentified in the Glycemic Index.

The increased consumption of starchy carbohydrates, particularly wheat, is held to blame for the obesity problem. Also, the claim is made that insulin resistance (said to be present in 22% of the population) would be less evident if starchy carbs like rice, potatoes and bread were reduced. Insulin regulates glucose consumption in the body, mainly the muscles. If these become insensitive to insulin (called insulin resistance) then weight-gain results. Refined carbs are the major source of glucose in the diet. For example, it is suggested that no more than a quarter-serving of these foods be consumed at one sitting, alongside cutting out drinks and juices with added sugar.

The Glycemic Load Diet also requires 30-40 minutes of walking every other day, with the objective of activating ’slow-twitch muscle’ to improve the insulin resistant condition.

Glycemic index/Glycemic load

The glycemic index measures the effect on blood glucose of a given amount of carbohydrate from a particular food source, in comparison to the same amount of carbohydrate in white bread as the standard (set at 100).

The glycemic load corrects that figure for serving size or amount consumed, and it this glycemic load which forms the basis of the Glycemic Load Diet. The advice given is that the total glycemic load in foods consumed each day should be under 500.

Examples of the glycemic load of common baked goods, breads and breakfast cereals.

This list is taken from the Glycemic Load Table in Dr. Thompson’s website as quoted in his book The Glycemic Load Diet.

As such it uses a different formula than other measures of Glycemic Load such as the University of Sydney.

Food Item
Description
Glycemic
Index
Typical
American
Serving
Glycemic Load
White bread
30 grams-1/2″ slice
100
1-1/16oz
100
Baked Goods:



Oatmeal cookie
1 medium
77
1oz
102
Apple muffin-sugarless
2-1/2″ diameter
69
2-1/2oz
107
Cookie: average all types
1 medium size
84
1oz
114
Croissant
1 Medium size
96
1-1/2oz
127
Crumpet
1 Medium size
69
2oz
148
Bran muffin
2-1/2″ diameter
85
2oz
149
Pastry
Average serving
84
2oz
149
Chocolate cake
1 slice (4″X4″X1″)
54
3oz
154
Vanilla Wafers
4 wafers
110
1oz
159
Graham cracker
1 rectangle
106
1oz
159
Blueberry muffin
2-1/2″ diameter
84
2oz
169
Pita bread
1 medium size
82
2oz
189
Carrot cake
1 square (3″X3″X1-1/2″)
88
2oz
199
Carrot muffin
2-1/2″ diameter
88
2oz
199
Waffle
7″ diameter
109
2-1/2oz
203
Doughnut
1 Medium size
108
2oz
205
Cup Cake
2-1/2″ diameter
104
1-1/2oz
213
Angel food cake
1 slice (4′X4″X1″)
95
2oz
216
English Muffin
1 medium size
109
2oz
224
Pound Cake
1 slice (4″X4″X1″)
77
3oz
241
Corn muffin
2-1/2″ diameter
146
2oz
299
Pancake
5″ diameter
96
2-1/2oz
346
Breads and Rolls:



Tortilla (wheat)
1 medium size
43
1-3/8oz
64
Pizza crust
1 slice
43
3.5oz
70
Tortilla (corn)
1 medium size
74
1-1/4oz
87
White Bread
1 slice-1/2″ thick
100
1oz
107
Whole meal rye bread
3/8″ slice
97
2oz
114
Sourdough bread
3/8″ slice
77
1-1/2oz
114
Oat bran bread
3/8″ slice
68
1-1/2oz
128
Whole Wheat Bread
1 slice-1/2″ thick
101
1-1/2oz
129
Light rye bread
3/8″ slice
97
1-1/2oz
142
Banana Bread-sugarless
1 slice (4″X4″X1″)
79
3oz
170
80% whole-kernel oat bread
3/8″ slice
93
1-1/2oz
170
Pita bread
8″ diameter
82
2oz
189
Hamburger Bun
Top & bottom-5″diameter
87
2-1/2oz
213
80% whole-kernel wheat bread
3/8″ slice
74
2.25oz
213
French Bread
1 slice-1/2″ thick
136
2oz
284
Bagel
1 Medium size
103
3-1/3oz
340





Breakfast Cereals:



All Bran
1/2 cup
54
1oz
85
Muesli
1 cup
69
1oz
95
Special K
1cup
98
1oz
133
Cheerios
1 cup
106
1oz
142
Shredded Wheat
1 cup
107
1oz
142
Grapenuts
1 cup
102
1oz
142
Puffed Wheat
1 cup
105
1oz
151
Instant Oatmeal (cooked)
1 cup
94
8oz
154
Cream of Wheat-cooked
1 cup
94
8oz
154
Total
1 cup
109
1oz
161
Corn Flakes
1 cup
116
1oz
199
Rice Crispies
1 cup
117
1oz
208
Rice Chex
1 cup
127
1oz
218
Raisin Bran
1 cup
87
2oz
227

See Also

The book The Glycemic Load Diet (available at Amazon) contains about 80 pages of recipes. There are no meal plans as such.

No comments: