Thermogenic
Grains of paradise extract (CaloriBurn GP)
Grains of paradise is a spice extract with mixed fat-burning evidence and no proven workout benefit.
How it counts: Not part of the score
We show it on the label and count it as disclosed, but it never affects Dose, any sub-score or the grade. The basis below explains why.
- Clinical dose
- No established clinical dose
- Safety ceiling
- —
- Evidence
- weak
- Category
- Thermogenic
Evidence summary
Research confidence: low
No reference dose. Grains of paradise is a peppery West African spice sold as a fat burner. A single 40 mg dose raised calorie burn by about 86 kcal a day, but only in the 12 of 19 young men who had active brown fat (Sugita 2013); 30 mg a day for 4 weeks slightly lowered belly fat in 19 young women (Sugita 2014). In the largest and only double-blind trial, 40 mg a day for 8 weeks did not change metabolism, body fat, heart rate or blood pressure (Allen 2026). This label's 40 mg matches the doses tested.
Research sources
- Grains of paradise (Aframomum melegueta) extract activates brown adipose tissue and increases whole-body energy expenditure in men (Sugita et al., Br J Nutr 2013)(opens in new window)
- Daily ingestion of grains of paradise (Aframomum melegueta) extract increases whole-body energy expenditure and decreases visceral fat in humans (Sugita et al., J Nutr Sci Vitaminol 2014)(opens in new window)
19 non-obese women, single-blind crossover, 30 mg/day for 4 weeks: small rise in energy expenditure and visceral fat loss vs placebo; no change in subcutaneous or total fat.
- Effects of L-BAIBA supplementation with and without grains of paradise on resting metabolic rate, body composition, and cardiometabolic risk factors (Allen et al., Nutrition Journal 2026)(opens in new window)
Double-blind RCT: 40 mg/day CaloriBurn (with 500 mg L-BAIBA) for 56 days with diet and exercise produced no change in resting metabolic rate, fat mass, blood pressure or heart rate vs placebo. Funded by NNB Nutrition, the CaloriBurn maker.