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Insulin resistance
- Thread starter anthrax
- Start date
Manu
New member
The only way i read it was possible to know is by doing blood tests. This is from berardi site.
"Insulin Sensitivity - I Want Your Blood
So the next question is how do you know if you're sensitive or not? Did you cry at the end of Titanic when Leonardo DiCaprio's character sank like a blue Freezer Pop into the North Atlantic? Well, there you go; you're sensitive. Me? I cried like a baby. Okay, okay, actually there are several methods.
The easiest thing to do is just think about what types of diets you respond to best. If low carb diets work great for you, then you're probably insulin insensitive. If you can eat a lot of carbs and not get fat then you're probably insulin sensitive. If you'd like something more concrete than that, read on.
Some experts use very simplistic recommendations for testing insulin sensitivity, methods I disagree with. For example, I've heard the statement that if you have an apple-shaped physique or if you get sleepy after a carb meal then you're insulin resistant (insensitive). In my opinion, these are way too non-specific and tell you very little about your nutrient needs or if you're making progress.
Instead, I prefer methods that, although more time consuming, are objective. The first is an oral glucose tolerance test. For this you need to go to your local pharmacy and purchase a glucometer, some glucose test strips, and a standard glucose beverage (ask your pharmacist about this because it has to be a specific kind. Pepsi won't work). Once you've got the goods, you'll plan your test.
After going at least 24 hours without exercise (do this test after a day off from training), you'll wake up in the morning (fasted at least 12 hours) and you'll take a blood sample from your finger tip. Write down this number. Then drink your glucose beverage and continue to take blood samples at 15, 30, 60, 90, and 120 minutes. Record all the numbers at each time point. Here's a little chart of what you should expect:
Normal Insulin Sensitivity and Glucose Tolerance Excellent Insulin Sensitivity and Glucose Tolerance
Fasted Blood Glucose <100mg/dl <70mg/dl
Peak Blood Glucose <180mg/dl at peak <130mg/dl
Time to Maximum Blood Glucose Level 30-60 minutes 15-30 minutes
Time Back to Fasted Glucose Level 30-60 minutes 60-90 minutes
The second test that I like to recommend for assessing insulin sensitivity is a fasted glucose and insulin test. For this you need to see your doctor. This test is simply a blood draw in the fasted state. It's easy to do. Just schedule an appointment, the nurse will do a single blood draw, and then the lab will measure the levels of insulin and glucose in your blood at this time. Using one of the following equations, you'll have both an insulin sensitivity score and a pancreatic responsiveness score:
Insulin Sensitivity =
Fasted Insulin (mU/L) / 22.5 x e ^ -ln(Fasted Glucose (mmol/L))
OR
Fasted Insulin (pmol/L) x (Fasted Glucose (mmol/L) / 135)
Pancreatic Beta Cell Function =
(20 x Fasted Insulin (mU/L)) / (Fasted Glucose (mmol/L)-3.5)
OR
(3.33 x Fasted Insulin (pmol/L) / (Fasted Glucose (mmol/L)-3.5)
If you're not a math whiz or don't own a calculator, have your doctor do the math for you. Remember, you have to go to his office to get the test done in the first place. Once you have these values, compare your numbers to the following to see how sensitive you are:
Insulin Sensitivity
Lower score = more sensitive
Normal insulin sensitivity: score should be below 2
Excellent insulin sensitivity: score will be around 0.5
Pancreatic Beta Cell Function
Higher = better pancreatic function and insulin release
Normal pancreatic function: score should be about 100
Excellent pancreatic function: score will be above 200
Once you've collected these measures, you'll have a better indication of what type of diet you need to consume. I recommend doing these tests at least once every few months to see how your diet and training is impacting your insulin sensitivity."
Here's a link
"Insulin Sensitivity - I Want Your Blood
So the next question is how do you know if you're sensitive or not? Did you cry at the end of Titanic when Leonardo DiCaprio's character sank like a blue Freezer Pop into the North Atlantic? Well, there you go; you're sensitive. Me? I cried like a baby. Okay, okay, actually there are several methods.
The easiest thing to do is just think about what types of diets you respond to best. If low carb diets work great for you, then you're probably insulin insensitive. If you can eat a lot of carbs and not get fat then you're probably insulin sensitive. If you'd like something more concrete than that, read on.
Some experts use very simplistic recommendations for testing insulin sensitivity, methods I disagree with. For example, I've heard the statement that if you have an apple-shaped physique or if you get sleepy after a carb meal then you're insulin resistant (insensitive). In my opinion, these are way too non-specific and tell you very little about your nutrient needs or if you're making progress.
Instead, I prefer methods that, although more time consuming, are objective. The first is an oral glucose tolerance test. For this you need to go to your local pharmacy and purchase a glucometer, some glucose test strips, and a standard glucose beverage (ask your pharmacist about this because it has to be a specific kind. Pepsi won't work). Once you've got the goods, you'll plan your test.
After going at least 24 hours without exercise (do this test after a day off from training), you'll wake up in the morning (fasted at least 12 hours) and you'll take a blood sample from your finger tip. Write down this number. Then drink your glucose beverage and continue to take blood samples at 15, 30, 60, 90, and 120 minutes. Record all the numbers at each time point. Here's a little chart of what you should expect:
Normal Insulin Sensitivity and Glucose Tolerance Excellent Insulin Sensitivity and Glucose Tolerance
Fasted Blood Glucose <100mg/dl <70mg/dl
Peak Blood Glucose <180mg/dl at peak <130mg/dl
Time to Maximum Blood Glucose Level 30-60 minutes 15-30 minutes
Time Back to Fasted Glucose Level 30-60 minutes 60-90 minutes
The second test that I like to recommend for assessing insulin sensitivity is a fasted glucose and insulin test. For this you need to see your doctor. This test is simply a blood draw in the fasted state. It's easy to do. Just schedule an appointment, the nurse will do a single blood draw, and then the lab will measure the levels of insulin and glucose in your blood at this time. Using one of the following equations, you'll have both an insulin sensitivity score and a pancreatic responsiveness score:
Insulin Sensitivity =
Fasted Insulin (mU/L) / 22.5 x e ^ -ln(Fasted Glucose (mmol/L))
OR
Fasted Insulin (pmol/L) x (Fasted Glucose (mmol/L) / 135)
Pancreatic Beta Cell Function =
(20 x Fasted Insulin (mU/L)) / (Fasted Glucose (mmol/L)-3.5)
OR
(3.33 x Fasted Insulin (pmol/L) / (Fasted Glucose (mmol/L)-3.5)
If you're not a math whiz or don't own a calculator, have your doctor do the math for you. Remember, you have to go to his office to get the test done in the first place. Once you have these values, compare your numbers to the following to see how sensitive you are:
Insulin Sensitivity
Lower score = more sensitive
Normal insulin sensitivity: score should be below 2
Excellent insulin sensitivity: score will be around 0.5
Pancreatic Beta Cell Function
Higher = better pancreatic function and insulin release
Normal pancreatic function: score should be about 100
Excellent pancreatic function: score will be above 200
Once you've collected these measures, you'll have a better indication of what type of diet you need to consume. I recommend doing these tests at least once every few months to see how your diet and training is impacting your insulin sensitivity."
Here's a link
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