Are Clif Bars healthy or just clever marketing?
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 27, 2025 · 11 min read
For most sedentary people, a Clif Bar is not a “healthy” snack. It is often a ~250-calorie bar with ~20 grams of added sugar and a refined carbohydrate load that can raise blood glucose and insulin. If it adds calories or replaces a more filling, lower-calorie snack, it may make a calorie deficit harder to ...