lumen: your pocket trainer and nutritionist This device and the technology behind it is like having a pocket trainer and nutritionist. It simply works!

Waste of money This device does absolutely nothing. It is not at all as advertised, does not come with personalized information (the information on the app is very standardized), and the measurements do not provide useful insight into anything that isn't already common sense. Complete waste of money. The company also does not allow returns and does not provide a phone number to speak to anyone regarding dissatisfaction. I believe this company is a scam.

I was skeptical at first I was skeptical at first, but this is a true life-changing device that really gives you the control of how to deal with your eating in your health.

Easy to navigate Easy to navigate. Very easy to use. Helpful to understand your individual body. I found out fasting isn’t ideal for me.

Lumen has helped me lose my holiday… Lumen has helped me lose my holiday weight quickly and get into ketosis in no time. The macro recording is invaluable to know if you're on track to not overeat the wrong foods.