Marshmallows
Sugar and corn syrup whipped with gelatin — a fast-digesting, high-sugar treat.
FatTonic Facts
Marshmallows · per serving 4 pieces (28g)
Poor · works against fat-burning
| Factor | Amount | Points |
|---|---|---|
| Start | 100.0 | |
| Glycemic load | 14 | −30.8 |
| Sugar (g) | 17 | −13.6 |
| Processing | ultra-processed | −24.0 |
| Fiber (g) | 0 | 0.0 |
| Protein (g) | 1 | +0.7 |
| Glycemic index | 62 | |
| Carbs (g) | 23 | |
| Fat (g) | 0 |
Score model v1
Nutrients: USDA FoodData Central, record 167995 (Candies, marshmallows), public domain, checked 2 Oct 2026.
Glycemic index: per-food source not yet recorded.
Per 100 g (USDA record; serving 28 g): carbs 81.3, sugar 57.6, fiber 0.1, protein 1.8, fat 0.2 g.
What this means for fat-burning
Why this score: glycemic load 14 set it, −30.8 points. Source: USDA FoodData Central, FDC 167995.
Its high sugar content is the main reason to keep portions in check. 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
Marshmallows scores 32, rated Poor. It scores higher than 12% 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 marshmallows spike insulin?
Glycemic load 14 for 4 pieces (28g); FatTonic Score 32/100 — it works against fat-burning.
Is marshmallows good for fat loss?
Poor (32/100): marshmallows works against fat-burning.