The feel-good snack attack. What goes into Barbara's cheese puffs? Good stuff like real cheese and irresistible crunch. It's exactly what you crave for a satisfying snack. No hydrogenated oils. rBGH/rBST-free! We use milk products free of synthetic growth hormones! (No significant difference has been shown between milk from rBGH/rBST treated and non-rBGH/rBST treated cows).