Followed this man's journal for a while As you can see he was very meticulous with his diet. He ate the same amount of calories everyday, but changed his fat to protein % and as you can see had some changes not only on BF but blood work too. Here's the link plus I'll post some info from the site. Tons of info too much to post here, but thought some of you would find this interesting. Enjoy..
http://www.rawpaleodietforum.com/journals/lex's-journal/Here is the 10th week update on my fat ratio experiment.
68%F/32%P 80%F/20%P 80%F/20%P 80%F/20%P
Baseline 21 Days 42 Days 70 Days
BG Daily Avg 106 94 92 87
BG Hi/Low Range 90/120 92/103 80/100 71/98
BG rise after meal 25 10 6 12
Urine Ketones 0-Trace SM/Lg Trace/Mod Large+
Resting Heart Rt 58 63 60 59
Weight 162 159 165 160
BMI 21.4 21.0 21.8 21.1
%Body Fat(calipers) 11.0 12.3 13.9 10.8
BP 110/70 105/67 98/63 103/65
Things are going well. The longer I'm eating raw meat the more my health improves. Last week I did transition back to the lower fat diet. Calories from fat are now in the 65% range rather than 80%. I do find that I want more food. Eating 80% calories as fat it was all I could do to get down 650 grams of food. I now eat about 900 grams (2 lbs) and I've actually lost 3 lbs of weight. It is clear that if the fat is high enough that you will gain weight even when eating zero carb - at least that is my experience. My energy also seems a bit higher on the lower fat protocol so this is what I will stick with.
I set out to prove Taubes statement that it takes Glycerol Phosphate to store body fat and the primary source for GP is from eating carbs, therefore if you don't eat carbs you can't gain weight - or so went my interpretation of Taubes statement. Experience has now shown that extremely high fat - 85%+ - will cause weight gain. At least it did in my case. So what gives?
After a bit of study and reasoning it seems that animal fats are also in the triglyceride form and therefore carry Glycerol Phosphate with them when eaten. Much of the Glycerol Phosphate is broken down into glucose during digestion, but if enough fat is eaten, then there is a surplus that can recombine with Free Fatty Acids to create new triglycerides that can be stored as body fat. Hence weight gain. Even under my worst case where I was trying to eat 2 lbs of the high fat food each day I only gained about 10 additional lbs so it takes a lot more dietary fat to create additional body fat than it does carbs. Once I cut the food intake to a more manageable 650 grams my weight did drop back to the 160-162 range.
Now that I'm eating 65% fat my body weight has dropped to 155 but since it has only been a little over 1 week I'm sure it is not stable and may rise again or even fall futher. Time will tell and I'll report.
BG was averaging in the mid 80s and now it is back to the mid 90s - again unstable so we'll see where it finally settles down.
Ketones were always maxed out at level 4 on the 80% fat protocol. Since returning to 65% fat they have dropped to Level 1 with an occasional dip to Trace level or a peak of level 2.
Resting heart rate has continued to slowly improve and a week ago it reached a low of 49. It will be interesting to see if this lower level holds with the increase in protein and reduction in fat or if heart rate will increase.