D-Aspartic Acid
2 benefits mapped to clinical evidence across supplements.
Dose per serving from products
120 products in our catalogue print how much D-Aspartic Acid a serving holds.
Most common: 2.5 g to 5 g, 41% of 120 products.
| Dose per serving | Products |
|---|---|
| 250 mg or less | 4 |
| 250 mg to 500 mg | 12 |
| 500 mg to 1 g | 22 |
| 1 g to 2.5 g | 32 |
| 2.5 g to 5 g | 49 |
| over 5 g | 1 |
Benefit Evidence
Research sources
Fertility (1)
- Evaluation of in vivo supplementation of 2660 mg D-aspartic acid and 200 mg ubiquinol and 10 mg zinc on different semen parameters in idiopathic male infertility: a randomized double blind placebo controlled study
PubMed ID: 40248985
Randomized double‑blind combo (DAA+ubiquinol+zinc) significantly improved progressive sperm motility in idiopathic infertility; effect likely real but cannot be attributed solely to DAA because of co‑supplements.
Hormone balance (1)
- Evaluation of in vivo supplementation of 2660 mg D-aspartic acid and 200 mg ubiquinol and 10 mg zinc on different semen parameters in idiopathic male infertility: a randomized double blind placebo controlled study
PubMed ID: 40248985
Combination trial reported a modest but statistically significant increase in total testosterone (~+16%) in infertile men; because DAA was co‑administered with ubiquinol and zinc, attribution to DAA alone is uncertain.
Similar by evidence
Supplements the same benefits carry qualifying findings for — a fact about the evidence graph, not a recommendation to swap.
Products with D-Aspartic Acid
Search all160 products whose verified label declares D-Aspartic Acid — not every bottle that mentions it in a title.
Being studied right now
Recruiting clinical trials registered on ClinicalTrials.gov. A trial in progress has no result yet — this is what the field is asking, not what it found.