In reply to Carol Verge.

Splenda is a brand name of sucralose - a synthetic chemical created in a lab from sugar. Keto encourages natural sweeteners whenever possible. Also, when using Splenda for baking, you're using way more than a teaspoon at a time, so those carbs can easily add up. Erythritol and stevia are 0 carb, as in monk fruit sweetener, another popular option.

Swerve is just a brand name of erythritol and is fine to use :) Good luck!