Omega-7 vs Omega-3: Which Is Better for Your Heart?
Aug 27, 2026
These two get lumped together because they're both "omega" fats, but they're not really rivals. They're different fatty acids with different jobs, and most of the confusion comes from the numbering.
Omega-3: the established one
Omega-3s, mainly EPA and DHA, are essential fatty acids, meaning your body can't make them and has to get them from food or supplements. They have a large, decades-deep research base on cardiovascular health, particularly triglyceride reduction, and that evidence is a big part of why fish oil became a mainstream supplement in the first place.
Omega-7: the newer, narrower one
Omega-7, specifically palmitoleic acid, is not essential. Your body makes some on its own by converting palmitic acid. The research on it is newer and more specific: it's mostly focused on metabolic signaling (it's been described as a "lipokine") and on supporting already-healthy cholesterol and glucose metabolism. We go through that evidence in detail in our Omega-7 benefits piece.
So which one should you take?
This is the part most comparison articles skip: you don't have to pick one. They're not interchangeable, and they're not competing for the same biological job. Omega-3 has the deeper, more established evidence base, particularly for triglycerides. Omega-7 is a newer, more targeted addition with its own separate research on lipid and glucose metabolism. Taking both isn't redundant the way taking two multivitamins would be.
The purity question applies to both
Whichever you choose, or both, sourcing matters. Cheap Omega-7 sources often carry palmitic acid alongside the beneficial fatty acid, which is the entire reason purification exists as a category. The same purity logic that applies to fish oil quality applies here.
The bottom line
Omega-3 and Omega-7 aren't in competition. One has decades of research behind it and a clear cardiovascular mechanism; the other is newer, more metabolically focused, and still building its evidence base. If you're already taking a quality Omega-3, adding a purified Omega-7 like Cardia 7 isn't replacing anything, it's addressing a different mechanism.
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
