Gadgets that track your physical activity get to only half the equation, as Marty Dopps pointed out after reading this week’s column. Dopps has lost 25 pounds (so far) since August using a combo ...

Can we measure food intake in humans? Accurately quantifying food intake is essential to understanding the effect of diet on health and diseases and evaluating the efficacy of dietary interventions.

Smartphone application-based dietary assessment is an emerging technology that aims to improve dietary collection and estimation of sodium intake. Studies have reported that smartphone applications ...

A preliminary study of a health monitoring smartband, the Healbe GoBe2, showed the technology to be about 89 percent accurate in automatic tracking of digested calories. A 14-day study was completed ...

The science of dieting, as Declan Butler observes in your News Feature “Slim pickings” (Nature 428, 252–254; 2004), is “painfully thin”. Yes, but he is too kind. The problem is not merely a shortage ...