Can you chew gum while fasting? What it means for intermittent fasting, keto, and autophagy
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 08, 2026 · 10 min read
Chewing one piece of sugar-free gum is unlikely to break a weight-loss-focused intermittent fasting plan, but it could interfere with a stricter fast aimed at maximizing autophagy. Your best choice depends on your goal, your gum’s calories, and how much you chew. “Most men do fine with one piece of sugar free gum during a ...