Guava
Exceptional fiber for a fruit gives it one of the lowest glycemic responses in the produce aisle.
FatTonic Facts
Guava · per serving 1 cup (165g)
Excellent · strongly supports fat-burning
| Factor | Amount | Points |
|---|---|---|
| Start | 100.0 | |
| Glycemic load | 4 | −8.8 |
| Sugar (g) | 15 | −12.0 |
| Processing | whole | 0.0 |
| Fiber (g) | 9 | +14.4 |
| Protein (g) | 4 | +2.8 |
| Glycemic index | no published test found | |
| Carbs (g) | 24 | |
| Fat (g) | 1 |
Score model v1
Nutrients: USDA FoodData Central, record 173044 (Guavas, common, raw), public domain, checked 2 Oct 2026.
Glycemic index: no published test found. Searched 28 Oct 2026 in Atkinson et al., International Tables of Glycemic Index and Glycemic Load Values: 2008: guava appears only as a yoghurt flavour (no. 864) and in a juice blend (no. 1056). The score still uses 24, a value with no recorded source, until a test is found.
Per 100 g (USDA record; serving 165 g): carbs 14.3, sugar 8.9, fiber 5.4, protein 2.6, fat 1 g.
What this means for fat-burning
Why this score: fiber 9 g set it, +14.4 points. Source: USDA FoodData Central, FDC 173044.
The fiber slows digestion and blunts the insulin response. Its high sugar content is the main reason to keep portions in check.
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Among the 200 rated foods
Guava scores 96, rated Excellent. It scores higher than 68% 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 guava spike insulin?
Glycemic load 4 for 1 cup (165g); FatTonic Score 96/100 — it strongly supports fat-burning.
Is guava good for fat loss?
Excellent (96/100): guava strongly supports fat-burning.