Humic Acid
minerals
Humic acid is an organic compound derived from humus found in soil and sediment, proposed to enhance nutrient absorption and support cellular health. It functions as a natural chelating agent and bioavailability enhancer, though human research remains limited. Traditional use in some cultures contrasts with modest scientific evidence for specific health claims.
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Benefits
Dosage
Typical Dose
500–2000 mg daily
Upper Limit
3000 mg daily
Timing
With meals for optimal absorption
Forms & Bioavailability
Humic acid powder
Moderate (variable depending on source)
Fulvic acid liquid
High (water-soluble form)
Humic-fulvic complex capsules
Moderate to high
Side Effects
Interactions
Research Summary
Humic acid has demonstrated antioxidant and anti-inflammatory properties in laboratory and animal studies, with some evidence suggesting enhanced nutrient absorption. Human clinical trials remain scarce and largely limited to small sample sizes; most evidence relies on traditional use and in vitro data. Further rigorous human research is required to substantiate most health claims and establish optimal dosing protocols.
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The Bottom Line on Humic Acid
Humic Acid is moderately researched with promising but sometimes mixed evidence.It is most commonly used for enhanced nutrient bioavailability and absorption and potential antioxidant and anti-inflammatory support. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for Humic Acid
See how Humic Acid can help with specific health goals: