Quote:
Originally Posted by Daryl
And on bone health and ZC: Lex Rooker, ZC for 5 or 6 years now, just had tests done on his bones, and they were very healthy, in the upper statistical limits.
|
Daryl, I don't think Lex's results are in the upper range; they're fairly close to average. Lex's bone scan results are analyzed here:
http://www.paleonu.com/panu-weblog/...assessment.html
Lex's results are that he has about 93% of the bone density of a 30-year old, and has about 1% more bone density than the average person his age (58). That puts him just over the 50th percentile (can't tell
exactly where due to rounding, but it's less than the 52nd percentile). So his bones are in average condition for someone his age.
It's hard to conclude much since he was vegan for 20 years before switching to ZC. Vegans would say their diet is so awesome that even after eating an insane diet for 5 years he was still in good shape. ZCers can be proud that just 5 years of ZC undoes 20 years of veganism. Even worse, without baseline data from when he was younger, it's hard to conclude even that much. Perhaps at age 30 (before his vegan and ZC adventures) his bone density was 150% due to good genes and some accidental good diet choices, and he's been hurting his bones ever since with two substandard diets. Or, his density at age 30 could have been 80%, and two good diets since then have helped him. (I think veganism is not a good thing for bone density, but am trying to be thorough in thinking of causes for his Dexa results
About the only take away I see is that 5 years of ZC probably doesn't do anything catastrophic to your bones.
I haven't followed Lex closely, but knows he does raw food and think he uses grass fed meat. Did he spend most of his ZC time eating that way?
Like Lex, I'm a bit concerned about my bone density. Not from ZC: I had clinically low levels of vitamin D (19) and a bunch of cavities--all from before ZC. However, I'm not sure it's worth the radiation exposure from the x-rays to do the measurement since I'm not sure what I'd do differently.
joe