Weetabix
A wholegrain wheat cereal that is high-GI despite its fiber because it is finely processed.
FatTonic Facts
Weetabix · per serving 2 biscuits (38g)
Moderate · is neutral for fat-burning
| Factor | Amount | Points |
|---|---|---|
| Start | 100.0 | |
| Glycemic load | 20 | −44.0 |
| Sugar (g) | 2 | −1.6 |
| Processing | ultra-processed | −24.0 |
| Fiber (g) | 4 | +6.4 |
| Protein (g) | 4 | +2.8 |
| Glycemic index | 74 | |
| Carbs (g) | 31 | |
| Fat (g) | 1 |
Score model v1
Nutrients: USDA FoodData Central, record 169040 (Cereals ready-to-eat, WEETABIX whole grain cereal), public domain, checked 2 Oct 2026.
Glycemic index: per-food source not yet recorded.
Per 100 g (USDA record; serving 38 g): carbs 81.5, sugar 5.7, fiber 11.4, protein 11.4, fat 2.9 g.
What this means for fat-burning
Why this score: glycemic load 20 set it, −44.0 points. Source: USDA FoodData Central, FDC 169040.
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
Weetabix scores 40, rated Moderate. It scores higher than 17% 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 weetabix spike insulin?
Glycemic load 20 for 2 biscuits (38g); FatTonic Score 40/100 — it is neutral for fat-burning.
Is weetabix good for fat loss?
Moderate (40/100): weetabix is neutral for fat-burning.