Short answer: if you’re vegetarian or vegan, buy algae oil. It is the only source of marine-grade EPA and DHA that involves no animal at all, and we say that as a company that sells krill. For everyone else, the choice comes down to what’s actually in each oil, what a milligram of omega-3 costs from each, and one fact about the food chain that the krill industry — us included — doesn’t usually lead with. Here it is first.

Every omega-3 in a krill started out in an alga

Krill don’t make EPA and DHA. Nothing in the animal kingdom makes much of it. The molecules are built by microalgae at the bottom of the marine food chain, and everything above — krill, sardines, salmon, whales — gets its omega-3 by eating them, directly or several stomachs removed. Even the astaxanthin that makes krill oil deep red comes from the krill’s algal diet.

So the honest way to describe algae oil is this: it skips the middleman. Instead of waiting for a crustacean to concentrate the algae’s oil for you, you grow the algae and press the oil out of them directly. That is the single strongest argument for algae oil, and you’ll notice it’s a krill company telling you.

What algae oil actually is — a factory product, and for once that’s the point

Commercial algae oil mostly comes from Schizochytrium, a marine microorganism grown nowhere near the sea. It’s raised in closed stainless-steel fermenters, fed sugar in the dark — the commercial strains don’t even photosynthesize — then harvested and pressed. The UK’s food-safety regulator has assessed several of these strains as novel foods, which is how tightly defined the process is: named strain, defined feedstock, specified oil.

We spend a lot of time on this site saying “from a boat, not a factory.” Algae oil is from a factory in the most literal sense — and in this one comparison, that cuts in its favor. A closed tank has no fishery, no bycatch, no season, and no ocean-borne contaminants to worry about. It doesn’t touch the ocean at all.

The composition difference nobody puts on the front of the box

The two oils are not interchangeable milligram for milligram, and the difference isn’t the total — it’s the split.

Most algal oils are DHA-heavy. Some are DHA-only; the classic Schizochytrium strains produce mostly DHA, and strains with meaningful EPA are a newer development. Krill oil runs the other way: it’s EPA-forward, typically carrying substantially more EPA than DHA, and it arrives packaged in phospholipid form with its astaxanthin still aboard. Algal oil is a triglyceride oil, like ordinary fish oil.

The practical advice is the same one we give in every comparison we’ve written: turn the bottle over. Ignore the front-of-box number and read the EPA and DHA lines per softgel. Some algal products have an EPA line that reads zero. If you’re following research that leaned on EPA, that matters.

What the trials actually show for algae oil

The evidence for algal oil is real, and we’re not going to pretend otherwise.

The bioavailability question was settled back in 2008: Arterburn and colleagues randomized 32 adults to 600 mg of DHA a day from either algal-oil capsules or portions of cooked salmon for two weeks. Plasma phospholipid DHA rose about 80% in both groups. The capsules were nutritionally equivalent to eating the fish — for the nutrient measured. That’s about as clean a result as supplement science produces.

On blood lipids, a 2012 meta-analysis in the Journal of Nutrition pooled 11 randomized trials — 485 people, median dose 1.68 g of algal DHA a day — and found triglycerides down about 18 mg/dL, HDL up modestly, and LDL up about 9 mg/dL. If that LDL number sounds familiar, it’s the same caveat we published about krill and fish oil in our cholesterol article: omega-3s can pull triglycerides down and nudge LDL up at the same time. Algae oil doesn’t escape that; it’s the molecules, not the source.

Note the dose, though: 1.68 g a day is several softgels of any consumer product, algal or krill. The headline effects in the trials come from bigger doses than most labels suggest.

And the comparison you actually came here for — krill against algae, head to head, in a randomized trial? We looked. We could not find one. Both oils have been compared against fish oil in separate studies, and anyone who tells you one “absorbs better” than the other is extrapolating across trials that were never designed to meet. That includes us: the phospholipid form is a real absorption advantage on the evidence we have, and it is modest, not a multiplier.

What a milligram costs from each

ConsumerLab, which tests and prices these products independently, puts the cost of 500 mg of EPA+DHA at roughly 16–56¢ from fish oil, 48–61¢ from algal oil, and $1.38–$2.60 from krill oil. Krill — ours included — is the most expensive way to buy a milligram of omega-3. Algal sits in the middle. Fish is cheapest. We’ve published that before and it hasn’t stopped being true.

Sustainability: algae doesn’t just compete here — it wins

The Antarctic krill fishery is genuinely well managed — catch limits set by treaty, and in 2025 the fleet hit its trigger level for the first time and the fishery closed early, which is the system working, as we’ve written. But a well-regulated fishery is still a fishery. A fermentation tank has no catch limit because it has no catch. If your first filter is “no animal, no ocean impact,” this comparison is over before it starts, and algae oil is the answer.

A note on Captains

Captains Krill Oil™ is a whole, natural oil, pressed mechanically from fresh-caught Antarctic krill right on the boat — no chemicals at any stage, no shipping krill meal across the world to be reprocessed months later. It’s a natural catch that varies a little lot to lot; we test lots at random and they come back strong, and documentation is available on request. We’ve been doing it this way for 20 years.

But notice what none of that answers: the vegan question. If the reason you’re reading this is that you don’t eat animals, our process doesn’t matter — the krill does. No sourcing story changes what a krill is.

You might not need us

Three honest exits. If you’re vegetarian or vegan, buy algae oil — it’s the only option on this page that fits, and the DHA evidence behind it is solid. If you eat fatty fish twice a week, you likely don’t need either capsule; the salmon in the Arterburn trial performed exactly as well as the supplement it was tested against. And if you’re chasing grams of omega-3 for a triglyceride number, concentrated fish oil is the cheapest route per milligram — and at those doses it should be a conversation with your doctor, not a shelf decision.

If you eat fish, want an EPA-forward whole oil, and care how the thing was made, that’s the buyer we built Captains for.

Honest answer, not a pitch. — captainskrilloil.com

Quick answers

Is algae oil as good as krill oil?

For DHA, algal capsules proved nutritionally equivalent to cooked salmon in a randomized trial, which is a strong result. But the two oils differ in composition: algal oil is DHA-heavy and often low or zero in EPA, while krill oil is EPA-forward with phospholipids and astaxanthin. No head-to-head trial has compared them directly.

Does algae oil contain EPA?

It depends on the product. Classic Schizochytrium algal oils are mostly DHA, and some products contain no meaningful EPA at all; newer strains include both. Check the EPA line on the supplement facts panel rather than the front of the box.

Is krill oil vegan?

No. Krill are animals — small crustaceans — so no krill oil is vegan or vegetarian. Algae oil is the vegan source of marine EPA and DHA, made from microalgae grown in fermentation tanks.

Which is more sustainable, krill oil or algae oil?

Algae oil. It’s grown in closed fermenters on land with no fishery involved. The Antarctic krill fishery is tightly capped and regulated by treaty, and closed early in 2025 when it hit its trigger level — but a tank with no catch beats even a well-managed catch on ocean impact.

Can you take krill oil and algae oil together?

You can, but there’s rarely a reason to. Both deliver EPA and DHA, and your total intake is what matters. Pick one based on your diet, the EPA/DHA split you want, and what you’re willing to pay per milligram.

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Or start here: https://captainskrilloil.com/no-fishy-burp/

Here’s a test almost nobody runs on a supplement they swallow every day: take one of your krill oil softgels, cut it open, and smell it.

What your nose is telling you

Fresh krill oil smells like the ocean — briny, clean, faintly like shellfish. Rancid oil smells sharp, fishy, almost like paint or old varnish. Your nose knows the difference, because that smell is the oil telling you it’s oxidized.

Three more signs

1. The fishy burp. Fresh oil repeats less; oxidized oil announces itself.
2. Color. Krill oil should be a deep red from natural astaxanthin — pale or brownish oil has been through something.
3. Heat. If your softgels spent a summer in a hot mailbox or a warehouse, the clock ran faster.

Why so much oil arrives tired

Distance and time. Krill harvested, shipped, processed later, extracted with solvents or CO₂, stored in drums, encapsulated eventually. Ours skips the waiting: mechanical extraction right on the boat, small batches into softgels while it’s fresh. The smell test is one we’re happy for you to run.

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Honest answer, not a pitch. — captainskrilloil.com

Video visuals are AI-generated illustrations of our process. 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.

You bought krill oil. You took it every day. And you felt… nothing. Before you decide krill oil isn’t for you, there’s a question almost nobody asks: what was in the softgel by the time it reached you?

A lot can happen between the water and the capsule

Here’s the journey most krill oil takes:

• Krill is harvested, then frozen or held
• Shipped to a processing plant — sometimes an ocean away
• The oil is separated later, extracted with solvents or supercritical CO₂
• Stored in drums until somebody needs it
• Eventually encapsulated, warehoused, and shelved

Omega-3 oils are fragile. Time, heat, and oxygen change them. The label says krill oil either way — the label just can’t tell you how long the trip took.

The Captain’s way

• A continuous pumping system brings krill straight aboard
• Mechanical extraction, right on the boat — no chemicals, nothing added
• No solvents. No supercritical CO₂. No hexane
• Small batches go into softgels while the oil is fresh
• Only the astaxanthin that was already in the krill

That’s not a shortcut — it’s the harder way to make it. It’s why the oil that reaches you is the same oil that came out of the water. Twenty years. Same process.

So did krill oil “not work” — or did the oil arrive tired?

We can’t speak for what was in someone else’s capsule. We can tell you exactly what’s in ours, and exactly how it got there. If your krill oil didn’t work, maybe it wasn’t krill oil that let you down — maybe it was everything that happened on the way to the capsule.

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Honest answer, not a pitch. — captainskrilloil.com

Video visuals are AI-generated illustrations of our process. 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.

It means the oil comes from Euphausia superba, a krill species caught in the Southern Ocean around Antarctica — which is true of nearly every krill oil sold in America, including the cheapest bottle on the shelf. “Antarctic” is the most common word in the category and the least useful one for telling two bottles apart.

We sell krill oil. Ours is Antarctic too. So read this as a label-decoding guide from someone with no way to win the comparison — because on this particular word, there is no comparison to win.

One species, one ocean, one set of rules

Commercial krill oil is, with rare exceptions, made from one animal: Euphausia superba, Antarctic krill. The fishery operates in Area 48, the southwest Atlantic sector of the Southern Ocean, and it is managed by CCAMLR, the international commission that sets the catch limits for Antarctic waters.

The scale is public record. The fleet caught 498,350 tonnes of Antarctic krill in 2024 and 624,918 tonnes in 2025 — the year the fishery hit its 620,000-tonne trigger level for the first time and was closed early, on the first of August. Whether that harvest is sustainable is a fair question with an interesting answer, and we wrote it up honestly in Is Krill Endangered?

Here is what that means for the label: when a bottle says “Antarctic,” it is telling you the krill came from the same ocean as everybody else’s krill, caught under the same rules as everybody else’s krill. It is a true statement. It is also the supplement-aisle equivalent of a wine label announcing the wine was made from grapes.

The part no label prints: most krill oil comes from the same few ships

Antarctic krill is not caught by a thousand little boats. It is caught by a short list of large factory vessels, and the concentration is remarkable: the Norwegian fleet operated by Aker QRILL — spun out of Aker BioMarine, the biggest name in the business — took roughly 63% of the entire world catch in 2024 and 52% in 2025. Most of the rest came from Chinese and Korean vessels.

Most krill oil brands do not fish. They buy oil — or raw krill meal — from a handful of ingredient suppliers, put it in softgels, and design a label. Superba™ is an ingredient brand of Aker BioMarine; Rimfrost is another supplier; there are a few more. Do the arithmetic on that market share and you land on a fact no front label will ever tell you: two competing bottles with different names, different prices, and different marketing stories can contain oil that came off the same ship in the same season. The word “Antarctic” cannot distinguish them, because it is true of both. The supplier name could — and almost nobody prints it.

For the record: Captains runs its own operation, and the catch is pressed mechanically right on the boat, no chemicals at any stage. That is a claim about process, not about ocean. The ocean we share with everyone.

Is there krill oil that isn’t Antarctic?

A little. North Pacific krill (Euphausia pacifica) is harvested off Japan, mostly for food and bait, and a small amount becomes oil. It is a genuinely different animal — its oil carries a fatty-acid metabolite called 8-HEPE at levels more than ten times higher than Antarctic krill oil, which researchers find interesting but which has far less human evidence behind it than EPA and DHA. Northern krill exists in the Atlantic too. You will rarely meet either in an American supplement aisle.

If you want to check, skip the front of the box and read the Supplement Facts panel — the species should be named there. If it says Euphausia superba, it is Antarctic krill by definition, whether or not the front label spends the word.

What “Antarctic” doesn’t tell you — which is everything that matters

Two bottles from the same ocean can hold very different oil, because the word on the front says nothing about what happened between the net and the bottle.

It doesn’t tell you the process. Most krill is cooked into meal on the ship, sacked, shipped across the world, and processed into oil at a factory months later. A minority of operations — ours included — press the oil from fresh catch on board. We laid the whole chain out, step by step, in Boat to Bottle.

It doesn’t tell you the composition. A comprehensive 2020 review found commercial krill oils range from about 39% to 81% phospholipids — a twofold spread in the very component krill oil is bought for, between products that all say “Antarctic” on the front.

It doesn’t tell you the clock. Krill are small and full of aggressive digestive enzymes, and the catch starts breaking down within the hour — the industry’s own patent literature says processing should begin within 60 minutes of the catch landing on deck, preferably within 15. Freshness in krill oil is decided in the first hour after the net comes up, not by the latitude printed on the box.

And the “pristine Antarctic waters” pitch?

Partially real. The Southern Ocean is genuinely remote, krill sit near the bottom of the food chain, they live short lives, and measured mercury levels in Antarctic krill are genuinely low — orders of magnitude below the big predatory fish. That part of the story holds up.

But a clean ocean is not the same thing as a clean bottle. In the one published lab test of eleven krill oil brands, mercury — the metal buyers ask about — passed across the board, while lead — the metal nobody asks about — exceeded the EU limit in all eleven. We covered that inversion, sources and all, in Does Krill Oil Contain Mercury or Heavy Metals? The water can’t do your quality control for you.

You might not need us

If “Antarctic” was your reason for reaching for a premium bottle, put it back — the $19 bottle beside it is from the same ocean, under the same rules, and possibly off the same ship. Compare bottles on EPA+DHA per softgel and on how the oil was handled, not on a geography they all share.

If you eat fatty fish twice a week, you likely don’t need any krill oil, ours included — sardines don’t have a front label and don’t need one.

And if the North Pacific krill research is what caught your eye, we don’t sell that species and we’re not going to pretend our oil is a substitute for it.

A note on Captains

Captains Krill Oil™ is Antarctic krill oil, same as nearly everyone. Here is the part of our label that isn’t shared: the oil is pressed mechanically on the boat, right after the catch, no chemicals at any stage — not shipped across the world as meal to be reprocessed months later. It’s a natural oil from a wild catch, so it varies a little lot to lot; we test lots at random and they come back strong, and documentation is available on request. Twenty years, small family business. If the word “Antarctic” is what sells you, any bottle on the shelf qualifies. If the first hour after the net matters to you, that’s the hour we built the whole operation around.

Quick answers

Is all krill oil from Antarctica?

Nearly all. Commercial krill oil is almost always made from Euphausia superba, the Antarctic species, caught under CCAMLR management. The main exception is North Pacific krill (Euphausia pacifica), harvested off Japan, which rarely appears in American supplements.

Is Antarctic krill oil better than regular krill oil?

In an American store the comparison is mostly meaningless, because “regular” krill oil is Antarctic too. The real differences between bottles are phospholipid content, EPA+DHA per softgel, and how the oil was processed — none of which the word “Antarctic” tells you.

Does “Antarctic” mean the oil is purer?

The ocean is genuinely clean and measured mercury in krill is genuinely low. But bottle quality is set by handling and testing, not latitude — in the one published 11-brand test, every product passed on mercury and every product exceeded the EU lead limit.

What species should a krill oil label name?

Euphausia superba, in the Supplement Facts panel. If that’s the species named, the krill is Antarctic by definition. If the label names Euphausia pacifica, it’s North Pacific krill — a different animal with different chemistry.

Who actually catches Antarctic krill?

A short list of large factory vessels from Norway, China, and Korea, all under CCAMLR rules. The Norwegian fleet alone took roughly half to two-thirds of the world catch in recent seasons, and most brands buy from the same few suppliers rather than fishing themselves.

Honest answer, not a pitch. — captainskrilloil.com

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Yes — you can take krill oil on an empty stomach, and for most people nothing bad happens when you do. But if you want the most out of each softgel, take it with a meal that has some fat in it — and the answer that matters more than either: take it at whatever time you will actually remember, every day, because consistency beats timing by a mile.

That is the whole article in two sentences. The rest is the why, the evidence, and the places where the honest answer is “nobody has measured it.”

Why food helps any omega-3

EPA and DHA are fats. To get a fat out of your gut and into your blood, your body has to emulsify it — bile from the gallbladder, enzymes from the pancreas — and the signal that releases both is eating, particularly eating fat. Swallow an oil capsule with black coffee and you are asking your digestive system to process fat without telling it any fat is coming.

How much this matters was measured back in 1988, in a pair of small studies by Lawson and Hughes (Biochemical and Biophysical Research Communications). Taking omega-3 in the ethyl-ester form — the form in most cheap “fish oil 1000mg” concentrates — with a high-fat meal (about 44 grams of fat) roughly tripled the EPA and DHA reaching the blood compared with a low-fat meal. Natural triglyceride fish oil improved too, but far less dramatically. The pattern is worth remembering: the more processed the form, the fussier it is about food.

So the standard advice — “take fish oil with your largest meal” — is not bottle theatre. For ethyl-ester concentrates especially, it is the difference between absorbing your money and excreting it.

Why krill oil is less fussy about an empty stomach

Krill oil carries a large share of its EPA and DHA on phospholipids rather than triglycerides. A phospholipid is amphiphilic — one end is attracted to water, the other to fat — which means it starts emulsifying itself in your stomach contents instead of pooling on top like a slick waiting for bile to arrive. It is the same property that explains why krill oil produces fewer fishy burps for many people: the oil disperses down instead of floating up.

The absorption evidence points the same way. In a randomized single-dose crossover trial, Köhler and colleagues (Lipids in Health and Disease, 2015) compared krill oil, krill meal, and fish oil in healthy adults and found krill oil produced the highest appearance of EPA and DHA in plasma over the following days. If you want the deeper mechanics of the two carriers, we wrote a full piece on phospholipid versus triglyceride omega-3s.

Now the part most brands leave out. That krill trial fed everyone a standardized breakfast. It shows the phospholipid form absorbs well with food — it does not measure krill oil on an empty stomach. To our knowledge, no head-to-head trial has compared krill oil fasted versus fed. The “krill oil is fine on an empty stomach” claim rests on a plausible mechanism, not a measurement. We think the mechanism is real, and we will not dress it up as more than it is.

So the honest ranking: krill oil on an empty stomach is probably fine and certainly not dangerous. Krill oil with a meal containing some fat — eggs, nuts, olive oil, cheese, avocado, it does not take much — is the safer bet if you are trying to wring the most out of every capsule.

Morning or night — does it matter?

Not in any way science has been able to detect. There is no convincing evidence that omega-3s work better at a particular hour. What your body responds to is your long-run tissue level — the omega-3 index that builds over weeks and months of steady intake — not the clock time of any single dose. That is also why how much you take per day matters far more than when you take it.

The practical answer: anchor the capsule to the meal you never skip. If that is breakfast, it is breakfast. If your stomach or your schedule says dinner, dinner is exactly as good — and if any aftertaste bothers you, an evening dose lets you sleep through it. That is a comfort trick, not a chemistry trick, and we would rather label it honestly.

Missing a “perfect” time and taking it anyway beats waiting for the perfect time and forgetting. Every day, with food, at the hour your life makes easy. That is the whole protocol.

When timing actually does matter

If omega-3s give you reflux or burps: take them with the biggest meal of the day, not the smallest, and make sure the bottle is fresh — a rancid oil announces itself on the way back up. The full set of fixes is in our burps article.

If you take an ethyl-ester fish oil concentrate: with your fattiest meal, full stop. That is the exact group Lawson and Hughes measured, and the tripling effect is yours to claim for free.

If you take prescription medications, especially blood thinners: timing tricks do not fix interactions. Taking krill oil at a different hour than warfarin or apixaban does not change how they interact — that is a conversation for your prescriber, and no supplement label, including ours, replaces it.

Where Captains fits — and where we don’t

Captains Krill Oil™ is a whole natural oil, pressed mechanically on the boat right after the catch — no chemicals at any stage, nothing added, nothing stripped out. The phospholipids and astaxanthin arrive in the softgel because they were in the krill. Like any natural catch it varies a little lot to lot; we test lots at random and they come back strong, and documentation is available on request. After 20 years of doing it this way, our timing advice is the same one we follow ourselves: with a meal, at whatever hour you keep.

And the part you might not want to hear from a krill oil company: you might not need us. If you eat fatty fish twice a week, your timing problem is already solved — the omega-3s come with the fat built in, and no capsule is required. If you already own a bottle of ethyl-ester fish oil, do not throw it out; take it with your fattiest meal and it will do its job. And if any oil capsule on any schedule makes you queasy, sardines and canned salmon deliver the same molecules with lunch attached. We would rather say that plainly than sell you a bottle you will quit in three weeks.

Honest answer, not a pitch. — captainskrilloil.com

Quick answers

Should I take krill oil in the morning or at night?

Whichever hour you will actually keep. There is no evidence omega-3s work better at a particular time of day — your tissue levels build over weeks, not hours. Anchor it to the meal you never skip.

Does krill oil need fat to absorb?

It needs less than most fish oil, because its phospholipid carrier emulsifies on its own. But eating some fat still triggers the bile and enzymes that move any oil into your blood, so a meal with a little fat remains the safer bet for full absorption.

Will krill oil upset an empty stomach?

Usually not — most people tolerate it fine fasted, and it is gentler than many fish oils. If you do notice queasiness or aftertaste, take it with food; that solves it for nearly everyone.

Can I take krill oil right before bed?

Yes. There is no harm in an evening or bedtime dose, and sleeping through any aftertaste is a legitimate comfort trick. Ideally pair it with dinner rather than a completely empty stomach.

Does timing matter if I take medications?

Changing the hour does not change an interaction. If you take blood thinners or other prescriptions, the timing question belongs to your prescriber, not to a supplement label — ask before you start, not after.

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Usually not. “Triple strength” is not a defined or regulated term, and the big number on the front of a krill oil box — 500 mg, 1,200 mg, 1,600 mg, 2,000 mg — is the weight of the krill oil in a serving, not the amount of omega-3 that reaches you. Where both numbers are published, the EPA and DHA you actually swallow runs somewhere between a fifth and a quarter of the number on the front.

Here is the part that should annoy you. Ranking krill oils by the front-of-box number can put them in exactly the wrong order. One of the current best-sellers labelled “Triple Strength 1,600 mg” delivers less omega-3 per softgel than an ordinary competitor labelled 1,200 mg. Same category, same shelf, and the bigger number is the weaker capsule.

What the number on the front actually measures

Krill oil is a whole natural oil, not a concentrate. Pressed out of the krill, it is mostly phospholipids and other fats, with EPA and DHA riding along inside them, plus the astaxanthin that makes it red. The omega-3 you care about is a minority passenger in that oil — not the oil itself.

So “1,000 mg krill oil” means one thousand milligrams of that whole oil. It is an honest number about the wrong thing, the way “16 oz of coffee” tells you nothing about the caffeine.

Then there is the serving-size move. Most of the four-figure numbers on this shelf are per serving, and the serving is two softgels. A bottle shouting 2,000 mg is very often two 1,000 mg capsules. That is legal and normal: FDA’s supplement labelling rule, 21 CFR 101.36, requires the Supplement Facts panel to declare everything on a per-serving basis, and the manufacturer chooses the serving. The front of the box is marketing. The panel on the back is the regulated part, and it is the only part worth reading.

The same comparison, on real bottles

We pulled the published label figures for krill oils currently sitting in the top ten of the “krill oil” search on Amazon. These are their own numbers, not ours:

Read the last column again. The “Triple Strength 1,600 mg” softgel carries roughly 40% less omega-3 than the plain 1,200 mg softgel next to it. Nothing was faked to get there — the 1,600 mg is a two-capsule serving and the 1,200 mg is one. The front numbers simply aren’t measuring the same thing, so comparing them tells you nothing.

And the biggest number on the page, “Maximum Strength 2,000 mg,” doesn’t publish an EPA and DHA figure in its listing copy at all. That’s the second finding, and it’s the more common one: on this shelf, the products with the loudest strength language are frequently the ones that never state the number that would let you check it.

The blends are a category of their own. MegaRed’s 4-in-1, a long-running best-seller here, describes itself as a combination of concentrated fish oil and krill oil in a proprietary blend — so the krill share of that omega-3 isn’t broken out anywhere. ConsumerLab has made the same point bluntly in its omega-3 review: some products sold as “krill oil” are blends of fish and krill oils, and the labelling is misleading.

Three more places the number goes soft

What’s in the capsule isn’t always what’s on the label. In ConsumerLab’s testing of 18 popular omega-3 supplements, four contained 20% to 30% less EPA, DHA or other omega-3s than claimed. Not most of them — but one in five is enough that the printed figure is a starting point, not a guarantee.

“Percent phospholipids” is a composition, not a dose. You’ll see listings advertising 56% phospholipids as a strength claim. Commercial krill oils genuinely range from roughly 39% to 81% phospholipids depending on the krill and the processing, so the figure is real — it just describes the shape of the oil, not how much omega-3 is in your hand.

“Triple strength,” “maximum strength,” “advanced” — none of these mean anything. There is no regulatory definition of any of them, no reference product they’re triple of, and no test you could run to fail one. They’re adjectives.

So what number should you actually use?

One number: milligrams of EPA plus DHA per day. That is the figure trials are run on, the figure your blood work responds to, and the figure that lets you compare a krill oil to a fish oil to a can of sardines on the same scale. If a label won’t give it to you, that’s an answer too. We walk through the ranges people actually target in how much krill oil to take a day.

Do that arithmetic and one uncomfortable thing falls out immediately. A single ordinary 1,000 mg fish oil softgel typically carries around 300 mg of EPA and DHA — more than that entire “triple strength” krill serving above, for a fraction of the money. If grams of omega-3 are what you’re buying, krill is the expensive way to buy them, and we’ve written that out in full, with the per-dose costs.

The counter-argument for krill is the delivery form, not the dose: its omega-3 comes bound into phospholipids rather than triglycerides, which some small studies suggest is absorbed a bit more efficiently. We think that’s a real effect and a modest one, and we say so in our piece on phospholipid versus triglyceride omega-3s. It is not a multiplier that turns 147 mg into 500.

What our own bottle says — and what it doesn’t

Captains Krill Oil™ says 1,000 mg on the front. Same convention as everyone else: that’s the weight of the krill oil, not the omega-3. We’re not going to pretend our front-of-box number is more virtuous than theirs.

What we will tell you is what sits behind it. Our oil is pressed mechanically on the boat, right after the catch, with no chemicals at any stage — the krill goes from ocean to oil without a factory in the middle. It’s a wild natural catch, so it varies a little lot to lot, the way anything pulled out of the ocean does. We test lots at random and they come back strong, and documentation is available on request. What we will not do is print a locked figure and imply a natural oil hits it every time, because we’d be making it up. Twenty years of doing this one thing, in a small family business, and that’s still the honest description.

Which is also why we’re not going to win a milligram contest. Somebody on that shelf will always print a bigger number.

You might not need us

If you eat fatty fish twice a week — salmon, mackerel, sardines, herring — you’re already covering this and no krill oil is going to improve on it. Buy the fish.

If what you want is grams of EPA and DHA, buy a concentrated fish oil. It’s cheaper per milligram, it’s not close, and anyone selling you krill on dose alone is selling you the wrong bottle.

And if you’re standing in an aisle comparing front-of-box numbers, put ours down too. Turn every bottle over, find EPA plus DHA per serving, divide by the number of softgels in that serving, and buy on that. Some days that math won’t point at us. We’d rather you did it anyway.

Honest answer, not a pitch. — captainskrilloil.com

Frequently asked questions

Is “triple strength” krill oil a real category?

No. It’s a marketing phrase with no regulatory definition, no reference product it’s triple of, and no test that could verify it. Ignore the adjective and read the Supplement Facts panel, which is the part the FDA actually governs.

How much EPA and DHA is in 1,000 mg of krill oil?

Across published labels it typically lands somewhere around 100 to 250 mg of EPA and DHA combined per 1,000 mg of krill oil. It varies by product, by processing, and by the krill itself, which is why the panel on the back is the only place to get the number for the bottle in your hand.

Is 2,000 mg of krill oil better than 1,000 mg?

Only if it’s genuinely more oil, and often it isn’t — a 2,000 mg claim is usually a two-softgel serving of 1,000 mg capsules. Compare per softgel, or better, compare EPA plus DHA per day.

Why don’t some krill oil labels list EPA and DHA?

They generally do somewhere on the panel, but plenty of listings and front labels omit it, and blends of fish and krill oil sometimes fold it into a proprietary blend where the krill share can’t be separated. Treat a missing EPA and DHA figure as information about the seller.

Should I just buy fish oil instead?

If your goal is the most omega-3 per dollar, yes, and we’ll say that plainly. People choose krill for the phospholipid form, the astaxanthin that comes with it, and easier tolerability — not for raw dose. If those aren’t reasons you care about, fish oil is the rational buy.

Prefer the 2-pack on Amazon (Prime): https://www.amazon.com/dp/B00VAYXILI

Or start here: https://captainskrilloil.com/no-fishy-burp/