Collagen powder: does it break a fast?

Yes, it breaks the fast: collagen is protein, and a 10 g serving is about 35–40 kcal. Even if some brands market it for fasting, keep it for your eating window.

Approximate energy: ≈35–40 kcal

More questions

• Water (still or sparkling)
• Black coffee
• Yerba mate (unsweetened)
• Tea and herbal infusions, unsweetened
• Sweeteners (sucralose, stevia)
• Mate, coffee or tea with sugar or honey
• A splash of milk in your coffee
• Latte, flat white or cappuccino

General information; not a substitute for a health professional.