DHA (Omega-3)

Docosahexaenoic acid — the long-chain omega-3, and why the dose on the label matters

All articles checked for accuracy against the GB NHC Register and all sources have citations with verified links to their relevant studies.

DHA is the long-chain omega‑3 that often appears on supplement labels. Its regulatory story is simple: authorised health claims exist, but only at a specific daily dose.

This article explains what DHA is, where it comes from, which authorised claims apply in the EU/GB system, and why the milligram amount on a label matters. It clarifies which claims are permitted for DHA and highlights how the amounts in WellsparQ products compare with the regulator’s required daily amounts.

Ingredient Snapshot

What it is

A long-chain omega‑3 polyunsaturated fatty acid (docosahexaenoic acid).

Where from

Marine sources (oily fish, krill) or microalgae (algal DHA).

Known for

Concentrated in the brain and retina; specific daily amounts are required for authorised claims.

In WellsparQ

• BacoPanax Complex50 mg
• Krill 500 Oil40 mg
• 3-6-9 Omega Oil35 mg

For reference

• "DHA contributes to maintenance of normal brain function."Beneficial effect obtained with 250 mg DHA per day ^³
• "DHA contributes to the maintenance of normal vision."Beneficial effect obtained with 250 mg DHA per day ^³

DHA is one of the two long-chain omega-3 fatty acids most talked about in nutrition, and — unusually for this range — it is a substance that does carry authorised European health claims. But those claims come with a condition attached: a specific daily amount. That makes DHA a good lesson in why WellsparQ declares milligrams so plainly. This page explains what DHA is, where it comes from, and exactly what the regulator has authorised — and at what dose.

What DHA is

DHA — docosahexaenoic acid — is a long-chain omega-3 polyunsaturated fatty acid (22 carbons, six double bonds). Along with EPA, it is the omega-3 the body uses in the most specialised places: DHA is especially concentrated in the brain and in the retina of the eye ^¹². The body can make a little DHA from the plant omega-3 alpha-linolenic acid (ALA, found in flax, chia and walnuts), but that conversion is limited, which is why dietary and supplemental sources matter ^¹.

Where it comes from — and a suitability note

The richest natural sources of preformed DHA are oily fish and other marine life; the fish themselves get it from microalgae, the true base of the marine omega-3 food chain ^¹. That origin is directly relevant to who a product suits.

Source: WellsparQ Supplements Database. Where DHA comes from krill or fish oil it is animal-derived, so those products are not suitable for vegans and carry the relevant marine allergen warnings. (Algal DHA, by contrast, is plant-origin — the team should confirm the exact source for each formula.)

The authorised claims — and their condition

DHA is one of the few ingredients in this batch with authorised EU/GB health claims. EFSA assessed the evidence and two DHA claims were authorised ^³:

There is also a separate authorised claim for EPA and DHA together and normal heart function, at 250 mg combined per day, and maternal-intake claims for DHA and the normal development of the eye and brain of the foetus/breastfed infant (at defined higher intakes) ^³⁴.

Here is the crucial, honest point for WellsparQ: the DHA amounts in these products (35–50 mg) sit well below the 250 mg daily condition. At these doses the authorised claims cannot lawfully be used. WellsparQ's job on this page is to explain the science accurately, not to imply a benefit the dose doesn't earn.

Intake context

Public-health bodies commonly suggest around 250 mg of EPA plus DHA per day for general adult intake, typically framed as one or two portions of oily fish weekly ^¹³. WellsparQ's omega-3 inclusions are modest, declared contributions toward a diet's total — not standalone high-dose fish-oil products. Reading them honestly means reading the milligrams.

Safety and sensible use

Long-chain omega-3s have a good safety record at normal dietary and supplemental intakes; EFSA has reviewed supplemental EPA/DHA and found no safety concern at commonly used amounts ^⁴. Very high intakes can affect bleeding time, so anyone on anticoagulants, awaiting surgery, or pregnant should take advice. Fish- and krill-oil products are unsuitable for those avoiding animal or marine ingredients, and krill carries a crustacean-allergen warning ^¹. Fish-oil capsules are best taken with food to limit any aftertaste.