Rational Nutrition LLC Rational Nutrition Ultra-Pure Omega-3 Fish Oil: IFOS lot results, label against lab
Checked 25 October 2026 · labels from NIH's public label database, January 2026 release
The short answer
IFOS tested 1 lot of Rational Nutrition LLC Rational Nutrition Ultra-Pure Omega-3 Fish Oil, lot SB018331. The lab measured 322 mg per cap of EPA against 300 mg per cap on the label, and 251 mg per cap of DHA against 200 mg per cap.
It holds 573 mg per cap of EPA and DHA per serving. The middle IFOS product holds 680 mg per cap.
Source: IFOS lot SB018331 report
The latest lot
Rational Nutrition LLC Rational Nutrition Ultra-Pure Omega-3 Fish Oil
Lot SB018331 · use by 14 September 2027
Fish oil content, lab against label
| Test | Measured | Label | Result |
|---|---|---|---|
| EPA | 322 mg per cap | 300 mg per cap | Meets the label |
| DHA | 251 mg per cap | 200 mg per cap | Meets the label |
| Total Omega-3 | 684 mg per cap | 600 mg per cap | Meets the label |
Contaminants against the limit
| Test | Measured | Limit | Result |
|---|---|---|---|
| PCBs | 1.2 ppb | 45 ppb | Within the limit |
| Dioxins and Furans | 0.234 ppt | 1 ppt | Within the limit |
| Dioxin-Like PCBs | 0.0262 ppt | 1.5 ppt | Within the limit |
Freshness
| Test | Measured | Limit | Result |
|---|---|---|---|
| Acid Value | 0.11 mg KOH/g | 3 mg KOH/g | Within the limit |
| Peroxide | 1.43 meq/kg | 5 meq/kg | Within the limit |
| Anisidine | 0.45 | 20 | Within the limit |
| TOTOX | 3.31 | 19.5 | Within the limit |
Heavy metals against the limit
| Test | Measured | Limit | Result |
|---|---|---|---|
| Mercury | <0.0120 ppm | 0.1 ppm | Within the limit |
| Cadmium | <0.0016 ppm | 0.1 ppm | Within the limit |
| Lead | <0.0064 ppm | 0.05 ppm | Within the limit |
| Total Arsenic | 0.0306 ppm | 0.1 ppm | Within the limit |
Source: IFOS lot SB018331 report
Every lot, label against lab
| Lot | Use by | EPA, lab / label | DHA, lab / label | Report |
|---|---|---|---|---|
| SB018331 | 14 September 2027 | 322 mg per cap / 300 mg per cap | 251 mg per cap / 200 mg per cap | Report |
Source: IFOS lot reports, linked on each product, from the IFOS list; checks by Decode, 25 October 2026
How it compares with other IFOS products
- EPA and DHA per serving573 mg per cap · middle IFOS product: 680 mg per cap
- Freshness (TOTOX, lower is fresher)3.31 · middle IFOS product: 9.24 · limit 19.5
- Measured against the label115% of the label amount
Source: IFOS list, checked 23 October 2026
The matching NIH label
No NIH label matches this product yet.