Read the excerpt from "Healthy Eating." She can also scan food to determine whether she’s met her daily need.

"So after I have breakfast and lunch, and if I’ve had too many carbs, by dinner I know I have to cut back,” she said.

And that kind of tailoring is key, nutritionists say.

"People want me to just tell them what to eat, give them a meal plan. But they’ll only follow it for two weeks,” [dietician] Castro-Romero said. "So I get them to focus on the foods they’re eating now and improve. One group might be soda drinkers. So we work to decrease rather than eliminate.

"It’s really trying to keep it simple and look at small changes. I like to say small changes produce big results.”

Based on this excerpt, the dietician wants people to .