French Fries
Deep-fried refined potato: a high glycemic load plus heavy processing drives a fast glucose and insulin rise.
FatTonic Facts
French Fries · per serving 1 medium (117g)
Avoid · strongly works against fat-burning
| Factor | Amount | Points |
|---|---|---|
| Start | 100.0 | |
| Glycemic load | 32 | −70.4 |
| Sugar (g) | 0 | 0.0 |
| Processing | ultra-processed | −24.0 |
| Fiber (g) | 5 | +8.0 |
| Protein (g) | 4 | +2.8 |
| Glycemic index | 75 | |
| Carbs (g) | 48 | |
| Fat (g) | 17 |
Score model v1
Nutrients: USDA FoodData Central, record 170698 (Fast foods, potato, french fried in vegetable oil), public domain, checked 2 Oct 2026.
Glycemic index: per-food source not yet recorded.
Per 100 g (USDA record; serving 117 g): carbs 41.4, sugar 0.3, fiber 3.8, protein 3.4, fat 14.7 g.
What this means for fat-burning
Why this score: glycemic load 32 set it, −70.4 points. Source: USDA FoodData Central, FDC 170698.
The fiber slows digestion and blunts the insulin response. Being ultra-processed, it is also easy to overeat.
See how your whole day scores — free Metabolic Score →This food and 199 more, scored on your phone.
Among the 200 rated foods
French Fries scores 16, rated Avoid. It scores higher than 4% of the 200 rated foods.
Rated foods per band: Avoid 0–19: 11; Poor 20–39: 23; Moderate 40–59: 34; Good 60–79: 45; Excellent 80–100: 87.
Frequently asked questions
Does french fries spike insulin?
Glycemic load 32 for 1 medium (117g); FatTonic Score 16/100 — it strongly works against fat-burning.
Is french fries good for fat loss?
Avoid (16/100): french fries strongly works against fat-burning.