How to identify a quality omega-3 supplement?

Omega-3 fatty acid is a healthy and essential type of polyunsaturated fat, meaning it is important for maintaining health. However, the body is unable to produce it in adequate amounts, making its consumption through diet necessary.

Oily fish from cold, deep waters, such as salmon, sardines, anchovies, mackerel, and herring, are rich in EPA and DHA omega-3 fatty acids because their diet is based on phytoplankton (seaweed). Vegetable oils like flaxseed and evening primrose are sources of the precursor to EPA and DHA (alpha-linolenic acid).

There are several types of omega-3 supplementation on the market.

You should pay attention to some important criteria:

The International Fish Oil Standards™ (IFOS) international certification program is a global benchmark for omega-3 quality control, setting the highest standards for purity, oil freshness, and EPA and DHA concentration. The approval and certification criteria for fish oil are related to the high concentration of EPA and DHA per capsule, compliance with safety standards for environmental contaminants, and assessment of oil oxidation levels. The more concentrated the fish oil is in EPA and DHA, the fewer capsules will be needed per day, which facilitates treatment adherence.

This content is part of Clínica Revitalize's commitment to translating science into accessible clinical practice — without losing rigor or depth.