A couple ways: There are urine based (less accurate) and blood based (more accurate but expensive) options. Peter Attia, MD, author of "Eating Academy" blog and partners with Gary Taubes (author of the must read Why We Get Fat) recommends the Precision Ultra from Abbott for the blood based ketone measure. BTNX makes a good urine ketone strip I'v used but there are many options. Both available on amazon
Answered 1/30/2018
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