First, I want to say how great the girls are who work at UT. They were smart, engaging, and made me feel right at home. They were really cute, too.
The scan is easy and painless. It's an x-ray, but only 20% of the strength of a normal chest x-ray. Even thought UT has a pretty big table with a 450lb capacity, I was still a little too wide for the scan. My left arm had to be estimated by duplicating my right arm.
The scan lasts roughly 10 minutes. They talk to you to help the time pass. She asked a lot of questions about Keto and my fasting routine. She never made any negative comments. The other woman working there later agreed with everything, and said carbs and sugar are the culprit. She was happy to hear I had lost 68 lbs since starting Keto, and was onboard with fasting. It was nice to have positive discussion after breaking Rule #1 of Keto.
Results
349.8 lbs total mass (yes, I'm a fatass - but less of one since January!)
174.4 lbs fat mass
166.8 lbs lean mass
8.6 lbs bone mineral content
Lauren explained that my lean mass could be up to 15 lbs less than a person on a normal diet because Keto depletes the water in the muscles. That would put me around 180 lbs of lean mass, which is about what I expected. She said next time I get a scan to make sure a replicate today...be Keto and fasting.
My bone density compared to other men they've scanned was very good. I'm 3 standard deviations (or 30% more mass) than an average 30 year old.
Lean Mass Index puts me in the 90th percentile for men between 23-75 years old. She said this means that even if I did lose some muscle from my diet/fasting, I'd still be fine.
%Fat in my different body zones:
Arms: 41.0%
Legs: 44.5%
Trunk: 57.9%
Subsets of Trunk:
Android (lower belly): 62.8%
Gynoid (hips/glutes): 46.9%
This tells me what I already know. Most of my fat is in my gut.
Visceral Fat was unfortunately not calculated. I think I'm too fat for the computer. She said it didn't really matter because overall fat loss will decrease visceral fat anyway.
Estimated Caloric Expenditure based on mass only:
Sedentary: 2188-2664 for maintenance.
She agreed that thyroid and hormonal issues can decrease this number, and that it's just an estimate based on lean mass.
I signed up for another test tomorrow that will give me an accurate metabolic rate. I'll breathe into a tube or something. 10 minutes per test, up to 3 tests. Should be interesting.
Both tests are $80 each for UT alumni ($90 for public).