A top nutrition scientist shares 7 ways to make American food healthier — from adding veggies to eating like a Google employee

• Nutrition scientist Kevin Hall has changed the way we view ultra-processed foods and metabolism. • His research aims to make healthy eating easier in America. • In a new book, Hall explains how everyday additions and radical policy shifts could help us eat better.

For his entire career, nutrition researcher Kevin Hall has asked scientific questions that go straight to the heart of how to make America healthy.

His government lab was one of the few places in the country where researchers conducted the kinds of nutrition trials that could answer fundamental questions about why our food is making us sicker and fatter. He discovered ultra-processed foods drive us to eat more, and studied the shifting metabolisms of contestants on "The Biggest Loser."

Now, five months after an early ret