Hilary Duff tweeted a picture of a Kimberly Snyder style "glowing green drink." I don't know much about Kimberly Snyder but it looks like she is a health and beauty expert specializing in these healthy green drinks.
According to the tweet it looks like Hilary is starting a new diet regimen with Haylie and Sommer:
Kimberly Snyder would be so proud! 1glowing green drink down the hatch!@hayliek @somsom85 how we doing ladies???
Source: Hilary Duff Twitter.