Velocity 2012 Ignite Talk - Food For Thought
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Transcript of Velocity 2012 Ignite Talk - Food For Thought
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Food for
Thought
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BackStory
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No!
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FuckingDisclaimer
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Glycemic Index
The glycemic index (GI) is used to measure amount of carbohydrates in a food
by testing blood sugar levels
The index is based on 0 to 100
Glucose for example is 100 and and a white potato in 90‘s and something like hummus is
around 6...
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http://www.glycemicindex.com/about.php
The concept was developed by Dr. David J. Jenkins in 1980
The test takes the average of 10 ppl over a 2 hour period by testing one
food at a time
And comparing the test against the the reference index of gluclose (100)
University of Sydney has one of the largest databases of food GI’s
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Quality vs Quantity
The problem of GI is that it takes in the quality of the carbs but not
the quantity
For example Watermelon and white rice both have a GI=80
But Watermelon has far less carbs per gram than white rice does.
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Glycemic Load
(GL=GI/100 * Net Carbs) Net Carbs is carbs per total
The Glycemic Load uses what is called net carbs in it’s calculation.
For example watermelon is 8g of carbs per/100g
White rice is 53g of carbs per/100g
Watermelon GL=6 White Rice GL=42
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Estimated Glycemic Load
There is also another issue with Gylcemic Index
Not all foods have been tested
Limited dataset,regional,reactions
Nutritiondata.com they have created something called an EGL
EGL is based on multivariate analysis on the existing glycemic index data
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http://nutritiondata.self.com/help/estimated-glycemic-load
A predictive method for GI’sUsing known GI’s footprintEstimates (EGL) are in black
Actual values in Blue
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What They Say
EGL
<100 per day (total)
GL
<10 Low11-19 Moderate
>20 High
GI
<56 Low GI56--69 Medium GI
>69 High GI
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CellularInflammation
Just like burns and bruises Foods can also cause CI
(Trans-fats)(Fried foods)
Cold water fish anti-inflammatory(Salmon)(Herring)
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DeterminingInflammation
The Liver releases proteins/antibodiesWhen CI occurs
Nutrition scientists measure the levels of these proteins
Another food rating system was created called IFR
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Dr. Weil's Anti-Inflammatory Food Pyramid
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The IF Rating System
Monica Reinagel created the IFR system
This system measures 20 separate nutrients to come up with an if rating for foods
100g of McDonalds FF’s (-106) and 100g of Atlantic
Wild Salmon (+581)
The higher numbers are good and the lower numbers are bad
http://inflammationfactor.com/
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What She Say’s
200 or higherStrongly anti-inflammatory
101 to 200Moderately anti-inflammatory
0 to 100Mildly anti-inflammatory
-1 to -100Mildly inflammatory
-101 to 200Moderately inflammatory
-201 or lowerStrongly inflammatory
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Other Interesting Things
Nutrient Density is the amount of nutrients per calorie based on FDA recommendations
Fullness Factor predicts the satiating effect of the food used for weight loss
Protein Quality is based on having all the essential
amino acids in the proper proportions.
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My Super Food Short List
• Kale• Spinach• Onions• Garlic• Flaxseeds• Macadamia• Sardines• Salmon• Oranges• Strawberries
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