Ingredient guide · Ingredient reference

MegaRed krill oil: what the oil weight does and does not mean

MegaRed’s 500mg Extra Strength product contains krill oil with EPA and DHA.500mg of oil is not the same as 500mg of combined EPA and DHA.

Read the evidence ↓

Supplement Science Insights Editorial Team

Published September 23, 2026

Read the named version

The manufacturer’s Extra Strength page lists 500 mg Antarctic krill oil in a daily softgel, with EPA, DHA and naturally occurring astaxanthin. Other MegaRed products include different strengths or fish-and-krill blends; the brand name alone does not specify the composition. [1]

Compare the actual omega-3 amounts

The useful comparison is the separate EPA and DHA amounts per serving, not just total oil mass. Omega-3 evidence depends on the formulation, dose and outcome; a krill-oil product is not interchangeable with prescription omega-3 treatment. Red color is not an efficacy measurement. [2][1]

Remember shellfish and other ingredients

The product declares shellfish from krill and lists gelatin, glycerin, water, ethyl vanillin and sorbitol. Its cautions include seafood allergy, medicines including blood thinners, pregnancy and planned procedures. Imagine comparing oils: first confirm allergen suitability, then compare the labeled fatty-acid amounts. [1]

Hypothetical example — read the formulation without converting marketing into a treatment claim
DetailMeaning
500mg krill oilTotal oil, not500mg EPA+DHA
Shellfish declarationKrill is relevant to allergy review
Different MegaRed versionCheck its own serving and composition
MegaRed krill oil: what the oil weight does and does not mean — original article outline diagram
Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

  1. MegaRed Extra Strength Omega-3 Krill Oil | Schiff Vitamins
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
  2. Omega-3 Fatty Acids - Health Professional Fact Sheet
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.