Aniston wrote, "…there's literally nothing more important to our health, happiness and success than what we put into our bodies and the energy, clarity and stamina that come as a result."
Jean Fain, a clinical social worker who specializes in eating issues who teaches at Harvard Medical School, says that often her clients remark that they do not want to run up weight like certain overweight celebrities.
"Many of them will buy food-related books with a celebrity name attached," said Fain, the author of "The Self-Compassion Diet: A Step-by-Step Program to Lose Weight with Loving-Kindess," which releases early 2011. "But often these books are not suited to their tastes, lifestyles and schedules." Or, perhaps, income, given that many people are not in a position to hire the Elmores or other personal chefs to cook healthy meals.
"Cooking healthily takes planning," concedes Jill Elmore. "We still cook for our own families, too."
ABC News' Sheila Marikar and Luchina Fisher contributed reporting.