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Sports Research Cod Liver Oil 1000mg with Vitamins A & D3 — view 1 of 5
Sports Research

Sports Research® Omega-3 Wild Alaskan Cod Liver Oil 1000mg with Vitamins A (1000 IU) & D3 (400 IU) - Burpless, Bovine Free, Non-GMO, & MSC Certified Sustainable - 120 Softgels

4.8· 228 Amazon reviews
$24.95$22.45with Subscribe & Save

$0.21/serving

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Price verified Apr 22, 2026

Not evaluated by the FDA · Individual results may vary · Consult a healthcare provider before use

Our verdict

1000mg cod liver oil (165mg Omega-3, 300mcg Vitamin A, 10mcg D3) per softgel; up to 3 softgels/day of Wild Alaskan Cod Liver Oil with Vitamins A & D3 per softgel…

Third-Party TestedFish (Cod)SoftgelSubscribe & Save

Why we recommend this

Sports Research's triple certification stack (IFOS + MSC + IGEN) is unusually thorough for a cod liver oil, and the burpless softgel eliminates the classic objection to fish oil supplementation. Ideal for users who want the traditional vitamin A + D3 + omega combo in a clean, sustainable format.

Check for interactions

Already taking other supplements or prescription medications? Add them below to check for documented interactions, severity, and clinical guidance.

Our database currently documents 137+ supplement and drug-category interaction pairs. Combinations not flagged here may still interact — always consult your healthcare provider before combining supplements, especially with prescription medications.

What to watch out for

The per-softgel Omega-3 dose (165mg) is too low for those targeting clinical EPA+DHA intake — you'd need 3+ softgels to approach a meaningful omega-3 dose, while simultaneously accumulating significant Vitamin A.

Dose & form

Serving
1000mg cod liver oil (165mg Omega-3, 300mcg Vitamin A, 10mcg D3) per softgel; up to 3 softgels/day
Form
Softgel
Clinical range
1-2 teaspoons (5-10ml) or 1-2 capsules daily
Dose adequacy
Blend
Supply
120 servings · $0.21/serving
UPC
023249092728

Who it's best for

Pescatarians wanting a traditional cod liver oil with added Vitamins A and D3 in a burpless, MSC-certified softgel

Who should skip it

Buyers seeking high-concentration EPA/DHA fish oil — at 165mg Omega-3 per softgel, potency is modest compared to dedicated fish oil products

Pros

  • Triple certification: IFOS (purity/potency), MSC (sustainable fishing), IGEN Non-GMO tested
  • A + D3 co-delivery in one softgel — traditional synergistic cod liver oil formula
  • Burpless and bovine-free — no fish aftertaste and gelatin from non-bovine source
  • Up to 3 softgels/day allows flexible dosing up to 495mg Omega-3 + 900mcg Vitamin A + 30mcg D3

Cons

  • Only 165mg Omega-3 per softgel — low vs dedicated fish oil concentrates (1250mg–2500mg products)
  • Modest review count (228) relative to Sports Research's flagship omega products
  • Vitamin A at 300mcg/softgel (3 softgels = 900mcg) approaches the tolerable upper limit (3000mcg) if combined with other A-containing products

What customers say

4.8★ across 228 Amazon reviews. The most common questions from shoppers: re any potential interactions with medications, re any side effects from long-term use, and cause any digestive issues or side effects. Full answers in the FAQ below.

Frequently Asked Questions

What is the clinical dose for Wild Alaskan Cod Liver Oil with Vitamins A & D3?

Clinical trials typically use 1-2 teaspoons (5-10ml) or 1-2 capsules daily. Sports Research Cod Liver Oil 1000mg with Vitamins A & D3 delivers 1000mg cod liver oil (165mg Omega-3, 300mcg Vitamin A, 10mcg D3) per softgel; up to 3 softgels/day, which we classify as Blend relative to that range.

How does Sports Research Cod Liver Oil 1000mg with Vitamins A & D3 compare to similar Softgel?

See the "Also consider" section below for two alternatives. Choose based on form preference (Softgel vs alternatives), dose adequacy, and third-party testing.

Is Sports Research Cod Liver Oil 1000mg with Vitamins A & D3 third-party tested?

Yes — IFOS Certified, IGEN Non-GMO Tested, MSC Certified Sustainable. Third-party testing verifies ingredient identity and label accuracy.

Does this work with Amazon Subscribe & Save?

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Are there any potential interactions with medications?

Cod liver oil's Omega-3 fatty acids have mild blood-thinning properties — consult your doctor if you take warfarin, aspirin daily, or other anticoagulants. Vitamin A at supplemental doses can interact with retinoid-based acne medications (isotretinoin), and the combination may cause toxicity risk. Vitamin D3 can interact with certain diuretics and thiazide medications affecting calcium levels.

Are there any side effects from long-term use?

Long-term cod liver oil use is generally safe at the 1–3 softgel range. The primary concern is cumulative Vitamin A — at 3 softgels/day (900mcg), combined with dietary Vitamin A intake, chronic use could push some individuals near the tolerable upper limit of 3000mcg. Vitamin D at 30mcg (1200 IU) from 3 softgels remains well below toxicity thresholds. Regular blood monitoring of 25-OH-D and Vitamin A is reasonable for long-term high-dose users.

Does it cause any digestive issues or side effects?

The burpless softgel coating significantly reduces the fishy aftertaste and belching commonly associated with fish oil. Some users experience mild loose stools or nausea when starting, especially if taken on an empty stomach. Starting with one softgel daily with food and gradually increasing helps the body adapt.

Can it be taken with other supplements or vitamins?

Compatible with most supplements, but monitor total Vitamin A intake if you also take a multivitamin — many multis contain 700–900mcg Vitamin A, and stacking with 3 cod liver oil softgels may exceed safe daily totals. Pairs well with Vitamin K2 (supports D3's calcium metabolism) and magnesium.

Are there any specific instructions for taking it safely?

Take with a meal containing dietary fat to maximize absorption of the fat-soluble vitamins A and D3. Do not exceed the serving suggestion without physician guidance, particularly if pregnant — Vitamin A excess in pregnancy carries teratogenic risk. Store capped and refrigerated after opening to prevent oxidation of the delicate fish oils.

How long until benefits are typically experienced?

Omega-3 fatty acid incorporation into cell membranes takes 6–8 weeks of consistent daily intake to reach equilibrium. Vitamin D3 status (measured as 25-OH-D blood levels) typically shows measurable improvement within 4–6 weeks of supplementation. Traditional benefits attributed to cod liver oil — joint, eye, and immune support — require consistent intake over several weeks.

Also consider

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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer