Orthomega Select DHA Ortho Molecular: Dosage & Who It Suits

Quick answer: Orthomega Select DHA is Ortho Molecular's DHA-dominant fish oil: each soft gel delivers 580 mg of DHA (docosahexaenoic acid) and 130 mg of EPA in the natural triglyceride form, from anchovy. The label dose is one soft gel a day, and a 60-count bottle lasts two months. It's built for adults who want DHA specifically, for brain, eye and heart support, rather than an even EPA and DHA blend.

Reviewed by the clinical team at Holistic Health Partners

“You’re telling me my blood is low on fish,” Hollis Brandvold said, holding the lab printout at arm’s length, the way he holds everything now.

“I’m telling you the test says so,” said Junie, who had read it first because it came to their shared email. “She circled it. Twice.”

Hollis is fifty-six and has surveyed property lines for the county for twenty-two years. He does not eat fish. He has said, at more than one church supper, that fish is what bait is for.

“Tell her about Tuesday,” Junie said, meaning the practitioner, meaning the follow-up call he had not booked.

Tuesday was the Kessler parcel. He read a bearing off the instrument, walked the eleven steps back to the tailgate to write it in his field book, and stood there with the pencil over the page and nothing in his head. He walked back and read it again. It happened twice that afternoon, and by the second time his rodman had stopped pretending not to notice.

“Everybody forgets a number.”

“You used to remember the landowners’ grandkids’ names.”

The note at the bottom of the printout was short: DHA low on the fatty acid panel, no dietary fish, consider Ortho Molecular’s Select DHA, one soft gel with dinner, retest in four months. Hollis read the label at the kitchen table and did the arithmetic out loud, because surveyors do. 580 mg of DHA came to about what he’d get from five of the drugstore softgels at the co-op.

“Four months,” he said. “That’s not a miracle, that’s a schedule.”

The April retest came back with the DHA number up. Hollis will tell you, with a surveyor’s caution, that the field book hasn’t given him trouble lately, and that he isn’t ready to credit a soft gel with that. He takes it with dinner anyway. Junie bought sardines. They’re still in the pantry.

If there’s a circle on your own lab printout, or you’re another member of the fish-is-bait club, here is what’s actually in the bottle Hollis’s practitioner wrote down, and how to tell whether it’s the right one for you.

OrthOmega Select DHA - 60 CT

$52.90

Orthomega® Select DHA by Ortho Molecular Products – DHA Omega-3 Support for Brain and Eye Health Orthomega® Select DHA by Ortho Molecular Products is a… Click here to read more

What is Orthomega Select DHA?

It’s a single-soft-gel fish oil concentrate in which DHA outweighs EPA more than four to one: 580 mg of DHA and 130 mg of EPA per capsule. In ordinary fish oil the two sit much closer together. The NIH Office of Dietary Supplements notes that a typical 1,000 mg fish oil supplement contains about 180 mg of EPA and 120 mg of DHA, so one Select DHA soft gel carries roughly the DHA of five of those.

The oil is highly refined and concentrated from anchovy, and the manufacturer says it is purified, vacuum-distilled and independently tested so environmental contaminants are reduced to undetectable levels. A proprietary antioxidant blend of natural tocopherols, rosemary extract and ascorbyl palmitate protects the oil from oxidizing, and a natural lemon-lime flavor keeps the aftertaste down. The capsule shell is gelatin, so it isn’t vegetarian. It contains no gluten, corn, yeast, or artificial colors and flavors.

Orthomega Select DHA is one of three concentrated fish oils Ortho Molecular makes. Its siblings are Orthomega 820, the balanced everyday formula, and Orthomega Select EPA, which flips the ratio the other way. Ortho Molecular sells only through licensed practitioners, and at Covenant it’s a clinic-access product: you register (free) before ordering.

What does the DHA in each soft gel do?

DHA is the main structural omega-3 in your brain and retina, and the 580 mg in each soft gel is there to keep those membranes supplied. A 2021 review of DHA’s health benefits and bioavailability describes it as the predominant long-chain omega-3 in the human brain and eyes, needed at every life stage. Your body can make a little DHA from the plant omega-3 in flax and walnuts, but the conversion is limited, which is why people who skip fish, like Hollis, tend to run low.

DHA and memory: 580 mg per soft gel

The strongest single trial on DHA alone and memory used 900 mg a day. In the MIDAS study, 485 healthy adults aged 55 and older, whose memory scores sat below those of younger adults, took 900 mg of DHA or a placebo for 24 weeks. The DHA group made significantly fewer errors on a visual learning and memory test, scored better on verbal recognition memory, and saw their blood DHA levels double. Working memory and executive function tests didn’t change. Two things to take from that: the benefit showed up on specific memory tasks, not across the board, and it took about six months. One soft gel of Select DHA gives you about two-thirds of the MIDAS dose.

DHA and the retina

DHA makes up more than half of the fatty acid side chains in the membranes of your photoreceptors, the light-sensing cells at the back of the eye. That figure comes from a 2023 review on DHA and retinal integrity, which also covers how DHA is made, moved and used in the retina. This is the basis for Ortho Molecular’s claim that the formula supports the retina and normal visual function. It is structural support, not a fix for an eye problem, and new changes in your vision need an eye exam.

DHA, blood lipids and the heart

Head to head, DHA moved more blood lipid markers than EPA did. In the ComparED crossover trial, 154 adults with abdominal obesity took 2.7 g a day of either DHA or EPA for 10 weeks each. DHA produced a greater rise in HDL cholesterol (7.6% against −0.7% on EPA) and a slightly larger drop in triglycerides. It also raised LDL cholesterol more (6.9% against 2.2%), and a follow-up analysis found DHA shifted that LDL toward larger particles. That’s a trial dose almost five times what one soft gel delivers, but if your practitioner tracks your LDL, mention that you’re taking a DHA-heavy oil.

EPA: 130 mg per soft gel

The 130 mg of EPA is a supporting dose, enough to round out the formula but not to make it an EPA product. If your practitioner wants EPA specifically, Orthomega Select EPA carries 660 mg per soft gel, and our Orthomega Select EPA guide covers it.

Why the natural triglyceride form matters

The natural triglyceride form absorbs better than the ethyl ester form used in many cheaper concentrates. In a two-week study of 72 volunteers taking about 3.3 g of EPA plus DHA daily, ethyl esters reached only 73% of the bioavailability of natural fish oil. The NIH fact sheet adds a fair caveat: every form raises blood EPA and DHA significantly. Form matters most when you’re comparing prices per milligram.

How do you take Orthomega Select DHA?

Take one soft gel a day with a meal, or as your healthcare professional directs. A 60-count bottle is a two-month supply at the label dose.

• Take it with your biggest meal. Fat in the meal triggers the lipase enzymes that digest fish oil, and a soft gel taken with dinner is less likely to come back as a fishy burp than one swallowed with morning coffee.
• Give it three to six months. DHA builds into cell membranes slowly. MIDAS ran 24 weeks, and Hollis’s practitioner set a four-month retest for the same reason.
• Add up all your fish oils. If you also take a multi or another omega-3, total the DHA and EPA lines from every label so you know your real daily intake.
• Don’t double up on your own. Some studies used more DHA than one soft gel provides. Whether you need two is a call for the person reviewing your labs.

Who should take Orthomega Select DHA, and who should be cautious?

This formula suits adults who want concentrated DHA in particular, most often because a practitioner asked for it. That usually looks like:

• Someone whose fatty acid blood test came back low on DHA
• People who rarely or never eat salmon, sardines, mackerel or other fatty fish
• Adults over 50 who want nutritional support for memory and focus
• Anyone looking for DHA-focused support for the retina and normal visual function
• Someone already on an EPA-heavy formula who has been told to add DHA

Be cautious, and talk to your provider first, if you:

• Are pregnant or nursing. The manufacturer’s warning reads: “If you are pregnant or nursing, consult your physician before taking this product.”
• Have a fish allergy. It’s made from anchovy.
• Take a blood thinner such as warfarin, or an antiplatelet drug, or have surgery or a procedure coming up
• Have LDL cholesterol your doctor is actively managing (see the ComparED findings above)
• Follow a vegetarian diet, since both the oil and the gelatin shell are animal-derived

Not sure which side of that list you’re on? Holistic Health Partners offers a free product consultation, and plenty of people who ask about DHA end up on a balanced fish oil instead.

How does Orthomega Select DHA compare to Orthomega 820 and Select EPA?

All three Orthomega concentrates are one-a-day, triglyceride-form fish oils. What changes is the ratio inside the soft gel.

Here’s the honest read. If nobody has given you a reason to want extra DHA, Orthomega 820 is the better default: it carries more total omega-3s per soft gel (950 mg against 710 mg), gives you a real dose of both EPA and DHA, and comes in bigger bottles. Our Orthomega 820 guide goes deeper.

Orthomega Select DHA earns its place when DHA is the point: a low DHA result on a blood test, a diet with no fish at all, or a practitioner who wants brain and eye support without adding more EPA.

Is Orthomega Select DHA safe, and are there side effects?

For most adults, yes: the label dose of 710 mg of combined omega-3s is far below the 5 g a day of EPA plus DHA that both the FDA and the European Food Safety Authority consider safe from supplements, according to the NIH Office of Dietary Supplements.

Side effects. The NIH lists the common ones as usually mild: an unpleasant taste, bad breath, heartburn, nausea, digestive discomfort, diarrhea, headache and odoriferous sweat. Taking the soft gel with a meal helps with most of them.

Blood thinners. Fish oil can have antiplatelet effects at high doses, though the NIH notes it appears less potent than aspirin, and most research finds 3–6 g a day of fish oil doesn’t significantly change anticoagulation in people on warfarin. One soft gel is well under that, but anyone on warfarin, clopidogrel or a similar drug, or anyone scheduled for surgery, should clear it with their prescriber first.

LDL cholesterol. High-dose DHA raised LDL more than EPA did in the ComparED trial. If your LDL is being monitored, keep your practitioner in the loop.

Allergies and pregnancy. It contains fish (anchovy). If you’re pregnant or nursing, check with your physician before taking it.

As with any supplement, consult your healthcare provider before use, especially if you take prescription medications.

What won’t it do?

• It won’t work in a week. Plan on three to six months before you judge it.
• It won’t stand in for a workup. Memory lapses that are new, frequent or getting worse, and any change in your vision, need an appointment, not a supplement.
• It won’t be your best all-purpose omega-3. With only 130 mg of EPA, it’s a specialist formula.
• It isn’t necessary if you already eat fatty fish twice a week. Food is the cheaper fix. Ask whether you need a concentrate at all.

OrthOmega Select DHA - 60 CT

$52.90

Orthomega® Select DHA by Ortho Molecular Products – DHA Omega-3 Support for Brain and Eye Health Orthomega® Select DHA by Ortho Molecular Products is a… Click here to read more

Is Orthomega Select DHA worth it?

Yes, if DHA is what you’re after. Orthomega Select DHA puts 580 mg of DHA into a single natural-triglyceride soft gel from a practitioner brand that publishes its purification and testing standards. It suits adults with a low DHA result, people who skip fish, and anyone whose practitioner wants brain, memory and eye support without tipping the ratio toward EPA.

It’s the wrong buy if you want one general-purpose fish oil, if you need EPA, or if you’re allergic to fish. For most people in the first group, Orthomega 820 is the better value. The trade-off is simple: the concentration that makes Select DHA useful also makes it narrow.

Hollis, for the record, has now read the label on the sardine tin too. He says he’s still deciding.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.