Absorption
Humic/Fulvic Mineral Blend Extract
Humic and fulvic blends are variable mineral mixtures with no proven acute pre-workout absorption 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
- Absorption
Evidence summary
Research confidence: low
No pre-workout reference dose. Humic and fulvic substances are variable mixtures whose composition depends on their source and processing. Small human studies have tested specific carbohydrate-derived fulvic acid or gram-level humic-acid products for short-term safety or microbiome effects, not acute exercise performance or absorption of ingredients from a pre-workout. The 35 mg label amount does not disclose how much is humic acid, fulvic acid or mineral content.
Research sources
- Phase 1 clinical study of the acute and subacute safety and proof-of-concept efficacy of carbohydrate-derived fulvic acid (Gandy et al., Clin Pharmacol 2012)(opens in new window)
- Impact of humic acids on the colonic microbiome in healthy volunteers (Swidsinski et al., World J Gastroenterol 2017)(opens in new window)
Fourteen healthy volunteers took 1.2-2.4 g/day of a specific humic-acid product for 45 days; the observational study measured microbiome changes, not exercise performance or nutrient absorption from a pre-workout serving.
- Bucked Up BLACK Pre-Workout product and label information(opens in new window)
Manufacturer identifies the 35 mg Humic/Fulvic Mineral Blend Extract used on the printed label and markets it for nutrient absorption; no constituent ratio or standardization is disclosed.
- What are humic substances? (International Humic Substances Society)(opens in new window)
Humic substances are complex, heterogeneous natural materials; humic and fulvic acids are operational fractions whose properties depend on source and extraction conditions.