Potato is ~5× as filling per calorie as Butter
Score 66 vs 15 on the satiety-per-calorie scale.
Potato
66solidly filling · 77 kcal /100 g
Butter
15engineered against fullness · 717 kcal /100 g
Same fullness, very different calories
Roughly what it costs to reach the fullness of 300 kcal of butter:
Butter~300 kcal · ~42 g
300 kcal
Potato~67 kcal · ~86 g
67 kcal
A rough guide, not a lab measurement — it treats fullness per calorie as constant across portion sizes, which is a simplification. How the score works.
Why they score differently
Protein
Potato
1
Butter
0
Water
Potato
52
Butter
1
Fiber
Potato
4
Butter
0
Savoury — pulls the score down
Potato
−0%
Butter
−16%
The numbers
| Per 100 g | Potato | Butter |
|---|---|---|
| Score | 66 | 15 |
| Energy | 77 kcal | 717 kcal |
| Protein | 2.0 g | 0.8 g |
| Fat | 0.1 g | 81.1 g |
| Carbohydrate | 17.5 g | 0.1 g |
| …of which sugars | 0.8 g | 0.1 g |
| Fiber | 2.1 g | 0.0 g |
| Sodium | 6 mg | 643 mg |
Satiety per calorie, not a virtue scale — neither food is forbidden.