Comparison
Aspartame vs Sucralose
The short answer
Both are approved with open questions. Sucralose is heat-stable for baking; aspartame isn't, and it must be avoided by people with PKU.| Side by side | Aspartame | Sucralose (Splenda) |
|---|---|---|
| Safety score | 55/100 Use in moderation | 60/100 Use in moderation |
| Brand names | NutraSweet, Equal | Splenda |
| Baking | Breaks down | Heat-stable ✓ Better |
| PKU warning | Yes | No ✓ Better |
| 2023 cancer classification | Possibly carcinogenic (2B) | Not classified ✓ Better |
| Gut bacteria questions | Some | Some |
Swapping one for the other
Neither swaps 1:1 with sugar by volume. Use the conversion chart on the packet.
Common questions
Which is safer?
Both are within limits at normal use. If you're cautious, stevia and monk fruit have fewer open questions.