1. How

Sweeteners can break a fast in 3 ways. The first is a metabolic response by either increasing blood sugar or insulin (or both). The 2nd is that is turns off autophagy, and the 3rd is that it turns on digestion.

2. Sweeteners That Break a Fast

• All forms of sugar with calories (typically above 5-8g of sugar per serving) such as maple syrup, raw honey, cane sugar, etc.
• Sucralose
• Aspartame (Equal)
• Acesulfame K
• Saccharin

3. Sweeteners That Won’t Break a Fast

• Stevia
• Allulose (Needs more research)
• Monk Fruit (Without sugar alcohol)
• Sugar Alcohols (Xylitol, Erythritol) – I don’t use these due to potential gut issues