Snickers Bar
Nuts and fat blunt the GI, but the sugar load keeps it firmly in storage-mode territory.
FatTonic Facts
Snickers Bar · per serving 1 bar (52g)
Poor · works against fat-burning
| Factor | Amount | Points |
|---|---|---|
| Start | 100.0 | |
| Glycemic load | 16 | −35.2 |
| Sugar (g) | 27 | −21.6 |
| Processing | ultra-processed | −24.0 |
| Fiber (g) | 1 | +1.6 |
| Protein (g) | 4 | +2.8 |
| Glycemic index | 51 | |
| Carbs (g) | 32 | |
| Fat (g) | 12 |
Score model v1
Nutrients: USDA FoodData Central, record 169589 (Candies, MARS SNACKFOOD US, SNICKERS Bar), public domain, checked 2 Oct 2026.
Glycemic index: per-food source not yet recorded.
Per 100 g (USDA record; serving 52 g): carbs 61.5, sugar 50.5, fiber 2.3, protein 7.5, fat 23.9 g.
What this means for fat-burning
Why this score: glycemic load 16 set it, −35.2 points. Source: USDA FoodData Central, FDC 169589.
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
Snickers Bar scores 24, rated Poor. It scores higher than 8% 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 snickers bar spike insulin?
Glycemic load 16 for 1 bar (52g); FatTonic Score 24/100 — it works against fat-burning.
Is snickers bar good for fat loss?
Poor (24/100): snickers bar works against fat-burning.