LOS ANGELES — A little over a week ago, Chestnut Hill-bred actor David Walton sat at a small table inside Café Gratitude on Larchmont Boulevard with a box of vegetables.

The 34-year-old Walton was attempting a cleanse diet, which meant that he would be limited to mostly raw food and juice for the rest of the week. He wasn’t exactly taking to the menu. In fact, he looked miserable. Within a few minutes of sitting down, he confessed that he had almost passed out earlier in the day and that he just wanted to curl up into a ball and sweat.