Dave Feldman’s Cholesterol Code

Dave Feldman has a website cholesterolcode.com. Dave is an Engineer who does hacking on cholesterol. He’s a cholesterol hyper-responder who is able to change his diet to manipulate his cholesterol up and down dramatically. He’s dug into the research on cholesterol in particular as it relates to the ketogenic diet. Dave has done experiments on groups of people at keto conferences. He gets them get blood tests then try the hacks and then check again a couple of days later.

Dave has an on-line tool that you can use to examine your cholesterol numbers. I ran my blood test from 2018-01-30.

Here’s the results of Dave’s tool:

CholesterolCode.com/Report v0.9.2

16 months on Keto (less than 20g carbs) ::: 10 hours water fasted

WARNING: fasting for less than 12 hours can risk confounded lipid numbers. See https://www.youtube.com/watch?v=ZQHztlN1Yls
Total Cholesterol: 240 mg/dL 6.21 mmol/L
LDL Cholesterol: 165 mg/dL 4.27 mmol/L
HDL Cholesterol: 51 mg/dL 1.32 mmol/L
Triglycerides: 118 mg/dL 1.33 mmol/L


Remnant Cholesterol: 24 mg/dL 0.62 mmol/L >>> Medium Risk Quintile
Remnant Chol to HDL: 0.47 >>> Medium Risk Quintile


AIP: 0.003 >>> Lowest Risk Third


Friedewald LDL-C: 165 | Iranian LDL-C: 179
Total/HDL Ratio: 4.71
TG/HDL Ratio in mg/dL: 2.31 | in mmol/L: 1.01

Analysis of Results

Dave’s report gives links (above) to more information on each item. Dave has observed that what you ate the day before the test matters. Other websites warn about exercising the day before the test. I didn’t have 12 hours of fasting and I did have a whole lot of food the day before – mostly in the evening. Here’s my Chronometer from 2018-01-29 (the day before):

Weight Day Before Lipid Test

Today I am 165 lbs. That probably will alter my results next time.

Macros Day Before Lipid Test

That was a lot of net carbs. I wonder what it would have been if I had stuck more closely to ketogenic (20 g net) limits?

Food Day Before Lipid Test

The night before I ate everything from the 3 drumsticks down (3 drumsticks, 2 bars of dark chocolate. Zucchini, broccoli, olives). That was 65-g of fat. Most of the other fat was the almonds I ate during the day.

Perhaps it would be an interesting experiment to do a Low Carb Lower Fat the day before I get my lipids next time.

Examining Pre-LCHF results

The real question is what impact did LCHF have on my numbers? I was on a statin in the past so the past numbers should have been a lot better, right? Unfortunately my past numbers were so bad that there’s no way to compare them. Here’s my 2015 results:

My Total Cholesterol was pretty good but my Triglycerides and HDL were so bad that there was no way to determine the LDL number. There is a calculation which can figure this number:

LDL-C (mg/dL) = total cholesterol – HDL-C – (triglycerides/5),

LDL-C = 159 – 36 – (460/5) = 31

Results from 2015

CholesterolCode.com/Report v0.9.2

16 months on Standard American ::: 12 hours water fasted

Total Cholesterol: 159 mg/dL 4.11 mmol/L
LDL Cholesterol: 31 mg/dL 0.8 mmol/L
HDL Cholesterol: 36 mg/dL 0.93 mmol/L
Triglycerides: 460 mg/dL 5.19 mmol/L


Remnant Cholesterol: 92 mg/dL 2.38 mmol/L >>> High Risk Quintile
Remnant Chol to HDL: 2.56 >>> High Risk Quintile



AIP: 0.747 >>> Highest Risk Third


Friedewald LDL-C: 31 | Iranian LDL-C: 305
Total/HDL Ratio: 4.42
TG/HDL Ratio in mg/dL: 12.78 | in mmol/L: 5.58


I have taken my TG/HDL from 12.78 to 2.31. The good/bad cutoff is 3.7.

Atherogenic Index of Plasma (AIP)

Most importantly I have taken my AIP from 0.747 (highest risk) to 0.003 (lowest risk).

See this study (Med J Islam Repub Iran. 2015; 29: 240. Atherogenic Index of Plasma (AIP): A marker of cardiovascular disease. Shabnam Niroumand, Mohammad Khajedaluee, Majid Khadem-Rezaiyan, Maryam Abrishami, Mohammadreza Juya, Gholamhasan Khodaee, and Maliheh Dadgarmoghaddam).

…an AIP value of under 0.11 is associated with low risk of CVD; the values between 0.11 to 0.21 and upper than 0.21 are associated with intermediate and increased risks, respectively.

AIP should be used as a regular monitoring index of CVD in every day practice, especially in persons with another cardiovascular risk factors. It is also associated with other major risk factors of heart disease and it is sensitive measure that can be easily calculated especially when other lipid values are within normal range.

Thanks Keto!!!!

Author: Doug

I'm an Engineer who is also a science geek. I was pre-diabetic in 1996 and became a diabetic in 2003. I decided to figure out how to hack my diabetes and in 2016 found the ketogetic diet which reversed my diabetes.

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