The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss
Indoor workers and athletes are top candidates for major insu ciencies: Lovell and
collaborators found 15 of 18 elite female gymnasts tested to have levels below 30 ng/ml, and 6
to have levels below 20 ng/ml.
to have levels below 20 ng/ml.
Simple at-home tests (see the resources listed in the "Getting Tested" appendix) can tell you
where you are, and consistent UV-B or sun exposure (2030 minutes at least twice per week,
depending on latitude), along with sublingual D3, can get you to our minimal target of 50
ng/ml. More than 100 ng/ml is considered excessive, and more than 150 ng/ml is considered
toxic.
If you don't get tested and blindly take vitamin D, you run the risk of overdose. One mild
overdose symptom can be a metallic taste in the mouth, which Neil from "Occam's Protocol"
experienced. In our rush to start the program, and based on the average de ciencies I'd seen in
the blood reports of past subjects, we neglected to get his vitamin D tested