It sounds like a pretty damn good deal: Pay a hundred bucks for a blood test and get five simple personalized nutrition tips that promise to add years to your life. Sold! I tried it. And I found, as with any data-based health app, its claims need to be taken with a hulking heap of salt.
Biotech company InsideTracker launched a new service last week called InnerAge. It tests your blood for five specific biomarkers shown to be correlated with longevity—glucose, vitamin D, CO2 inflammation, liver health, and, testosterone—and tells your "true" age based on this biological report card, along with how to optimize those biomarkers to "gain life."
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