On her Goop newsletter she wrote about how she cheated on the challenge:
As I suspected, we only made it through about four days, when I personally broke and had some chicken and fresh vegetables (and in full transparency, half a bag of black licorice). My perspective has been forever altered by how difficult it was to eat wholesome, nutritious food on that budget, even for just a few days—a challenge that 47 million Americans face every day, week, and year. A few takeaways from the week were that vegetarian staples liked dried beans and rice go a long way—and we were able to come up with a few recipes on a super tight budget.
She could have brought 3 chickens and some vegetables for $29. Which leads me to believe that Paltrow doesn’t know how to shop for groceries. But yay, for raising awareness?