Podcast
Questions and Answers
What is the glycemic index?
What is the glycemic index?
A scale that ranks carbohydrates by how much they raise blood glucose levels compared to a reference food.
What is the protocol for determining the glycemic index?
What is the protocol for determining the glycemic index?
- 25 or 50 grams carbohydrate of test food. 2. Blood samples taken at specific intervals. 3. Values plotted and AUC calculated. 4. Test food response compared to reference food response. 5. Average GI of 8-10 volunteers = GI of test food.
How is the glycemic index classified?
How is the glycemic index classified?
Low (0 – 55), Moderate (56 – 69), and High (70 or more)
What is the purpose of determining the glycemic index?
What is the purpose of determining the glycemic index?
Signup and view all the answers
What type of starch has a slower rate of digestion and a lower GI?
What type of starch has a slower rate of digestion and a lower GI?
Signup and view all the answers
Which food has a higher GI, Uncle Ben’s converted LG rice (50) or Russet potato (85)?
Which food has a higher GI, Uncle Ben’s converted LG rice (50) or Russet potato (85)?
Signup and view all the answers
How does bran influence the GI of foods?
How does bran influence the GI of foods?
Signup and view all the answers
Which type of fiber transforms intestinal contents into gel-like matter, slowing down enzymatic activity on starch?
Which type of fiber transforms intestinal contents into gel-like matter, slowing down enzymatic activity on starch?
Signup and view all the answers
What effect does fat and protein content have on the digestion of starch?
What effect does fat and protein content have on the digestion of starch?
Signup and view all the answers
How does acid content influence the GI of foods?
How does acid content influence the GI of foods?
Signup and view all the answers
What effect does food processing have on the GI of foods?
What effect does food processing have on the GI of foods?
Signup and view all the answers
How does cooking affect the GI of starch-containing foods?
How does cooking affect the GI of starch-containing foods?
Signup and view all the answers
What is the effect of all the factors mentioned on glycemic levels?
What is the effect of all the factors mentioned on glycemic levels?
Signup and view all the answers
How do the factors mentioned make us feel after eating carbohydrate-containing foods?
How do the factors mentioned make us feel after eating carbohydrate-containing foods?
Signup and view all the answers
Which type of rice has a higher GI, Uncle Ben’s converted LG rice (50) or Glutinous rice (98)?
Which type of rice has a higher GI, Uncle Ben’s converted LG rice (50) or Glutinous rice (98)?
Signup and view all the answers
What type of fiber is present in Apple (40) and Whole wheat bread (73) that contributes to their lower GI?
What type of fiber is present in Apple (40) and Whole wheat bread (73) that contributes to their lower GI?
Signup and view all the answers
Glycemic Index (GI) is a scale that ranks carbohydrates by how much they raise blood glucose levels compared to a reference food. A ______ GI is between 0 – 55.
Glycemic Index (GI) is a scale that ranks carbohydrates by how much they raise blood glucose levels compared to a reference food. A ______ GI is between 0 – 55.
Signup and view all the answers
The protocol for determining the glycemic index involves taking blood samples every 15 minutes in the 1st hour, every 30 minutes in the 2nd hour, and every 30 minutes for the 3rd hour for ______ volunteers only.
The protocol for determining the glycemic index involves taking blood samples every 15 minutes in the 1st hour, every 30 minutes in the 2nd hour, and every 30 minutes for the 3rd hour for ______ volunteers only.
Signup and view all the answers
The glycemic index is determined by comparing the test food response to the reference food response and calculating the AUC, which stands for Area Under the ______.
The glycemic index is determined by comparing the test food response to the reference food response and calculating the AUC, which stands for Area Under the ______.
Signup and view all the answers
The glycemic index is classified as ______, moderate, or high based on the range of values.
The glycemic index is classified as ______, moderate, or high based on the range of values.
Signup and view all the answers
Amylose absorbs ______ water
Amylose absorbs ______ water
Signup and view all the answers
Amylopectin absorbs ______ water
Amylopectin absorbs ______ water
Signup and view all the answers
Molecules form tight ______
Molecules form tight ______
Signup and view all the answers
Molecules are more ______
Molecules are more ______
Signup and view all the answers
Slower rate of ______
Slower rate of ______
Signup and view all the answers
Faster rate of ______
Faster rate of ______
Signup and view all the answers
Bran acts as a physical barrier that slows down enzymatic activity on the internal starch ______
Bran acts as a physical barrier that slows down enzymatic activity on the internal starch ______
Signup and view all the answers
Viscous, soluble fibers transform intestinal contents into ______-like matter that slows down enzymatic activity on starch
Viscous, soluble fibers transform intestinal contents into ______-like matter that slows down enzymatic activity on starch
Signup and view all the answers
Fat and protein slow down gastric emptying, and thus, slows down digestion of ______
Fat and protein slow down gastric emptying, and thus, slows down digestion of ______
Signup and view all the answers
Acid slows down gastric emptying, and thus, slows down the digestion of ______
Acid slows down gastric emptying, and thus, slows down the digestion of ______
Signup and view all the answers
Highly processed foods require less digestive ______
Highly processed foods require less digestive ______
Signup and view all the answers
Cooking swells starch molecules and softens foods, which speeds up the rate of ______
Cooking swells starch molecules and softens foods, which speeds up the rate of ______
Signup and view all the answers