If you like to use your iPhone and Apple Watch as part of your health and fitness journey, odds are good you value all the data they can offer. While that can include ways to track calories burned and consumed (and of course much more) there hasn’t been an easy way to do metabolic testing at home outside of expensive tests at clinics. Now a breakthrough handheld device called Lumen is making metabolic testing available to anyone and lets you know how to achieve optimal athletic performance, lose weight, build lean muscle, and more with a personalized nutrition plan. Better yet, Lumen has a great iOS app with Apple Health integration.
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