Better Dieting Through Chemistry

Habit wants to design one especially for you.
Photographer: Caroline Tompkins for Bloomberg Businessweek

First, the shake: At 950 calories, 61 grams of fat, 20g of protein, and 75g of sugars in just 14 ounces of fluid, it’s the centerpiece of the starter kit for Habit LLC, a new individualized nutrition company. It’s also a beast. Even tackling it after a 10-hour fast, as instructed, I have a hard time getting it all down.

Joshua Anthony, founding chief science officer at Habit and one of the shake’s architects, urges me to persevere. “It’s a lot of shake, because it’s designed to be a food challenge,” he says. “Your body has to respond to the overload—the whole process of digestion, absorption, and distribution of those nutrients. How your body manages that gives us important insights about how your body is functioning today.”