Does Sardinemaxxing Actually Work, or Is There an Easier Way to Get Your Omega 3?

If your feed has been full of people peeling back tins of sardines onto toast, crackers and even breakfast bowls, you are not imagining it. Sardinemaxxing has become one of the biggest food trends of 2026, with interest in the term doubling in a matter of weeks this summer¹.

The idea is simple. Eat lots of sardines, and enjoy better skin, sharper focus and a happier heart thanks to all that omega 3.

So does sardinemaxxing actually work? And if you love the idea but not the smell, is there an easier way to get the same goodness? Let's talk it through.

What exactly is sardinemaxxing?

The "maxxing" part comes from social media slang for pushing one thing as far as it will go. With sardinemaxxing, that one thing is the humble tinned sardine, eaten daily or even at every meal.

Some people do it for the protein, some for the skin glow, and plenty for the omega 3. A few have gone as far as a "sardine fast", eating little else for days at a time¹.

The intention behind it is a good one. The execution is where things can go a little sideways.

Why are sardines so good for you in the first place?

Sardines really are little nutritional powerhouses. They are an oily fish, which means they are rich in the long chain omega 3 fats EPA and DHA, the forms your body can use directly.

A 100g serving of tinned sardines provides roughly 1g of EPA and DHA combined, along with a generous amount of protein, calcium from the soft edible bones and some vitamin D⁴.

If you would like a refresher on what omega 3 actually does in the body, our guide to the benefits of omega 3 covers heart, brain, eye and joint health in more detail.

So does sardinemaxxing actually work?

Eating more sardines is very likely to be good for most people, because most of us are not eating anywhere near enough oily fish.

The NHS recommends at least one portion of oily fish a week, which is around 140g cooked². Yet UK adults aged 19 to 64 eat an average of just 56g a week, less than half of that³.

So if sardinemaxxing nudges you from almost no oily fish to a couple of tins a week, that is a genuine win. Where it stops working is when "more" turns into "only".

Can you have too much of a good thing?

You can, and this is where I would gently encourage some balance. No single food, however brilliant, can make up for a varied diet¹.

There are a few specific things to keep in mind with sardines:

• Pollutants. The NHS advises that girls, women who are planning a pregnancy, or those who are pregnant or breastfeeding should eat no more than 2 portions of oily fish a week, because small amounts of pollutants can build up in the body².
• Purines. Sardines are among the foods highest in purines, which can trigger flare ups for anyone prone to gout⁶.
• Salt. Sardines tinned in brine or sauce can be surprisingly salty, so olive oil or spring water versions are usually the kinder choice.
• Missing out. A plate of sardines contains no fibre, so leaning on them too heavily can crowd out the vegetables, wholegrains and pulses your gut relies on.

None of this makes sardines bad, but as with most things moderation is best. Eating excessive amounts like a tin at every meal is probably more than you need.

How can I get more omega 3 from food without the fuss?

The good news is you do not need to sardinemaxx to do well. A few small, realistic habits go a long way.

• Aim for one or two portions of oily fish a week, and rotate between sardines, mackerel, herring, salmon, pilchards and trout².
• Keep a couple of tins in the cupboard for quick lunches. Sardines on wholegrain toast with lemon and black pepper takes about two minutes.
• Pair your fish with plenty of colourful vegetables so you are getting fibre and antioxidants alongside the omega 3.

Plant foods such as flaxseed, chia and walnuts are worth including too. They provide ALA, a plant omega 3, although the body converts only a small amount of it into EPA and DHA.

Is sardinemaxxing cost effective?

On paper, yes. Tinned sardines are one of the most affordable sources of omega 3 you will find in the supermarket, and they keep for months. However, as we mentioned above there are nutritional risks to excessive consumption of tinned sardines.

The hidden cost is consistency. Lots of people start a trend with enthusiasm, then quietly abandon it once the novelty wears off, and a tin you do not eat is not doing anything for you.

The most cost effective approach is simply the one you will actually stick with. For some people that is sardines, and for others it is a small daily capsule.

Is there an easier way to get just the fish oil?

If you are after the omega 3 rather than the whole fish, a good quality supplement can quietly fill the gap. It is especially useful if you do not enjoy oily fish, eat it rarely, or simply want the benefits without the tin opener.

European food safety experts suggest around 250mg of EPA and DHA a day as a sensible baseline for adults, which roughly matches one to two portions of oily fish a week⁵. That is exactly where most of us fall short.

Not all fish oils are made equal, though. Freshness, purity and the form of the oil all make a difference, and we explain what to look for in our article on premium omega 3 supplements versus average distilled oils.

Why herring caviar oil is worth knowing about

One of the gentlest ways to take fish oil is from herring roe, also called herring caviar. Here the omega 3 is naturally bound to phospholipids, the same building blocks found in your own cell membranes.

In a clinical trial, phospholipid rich herring roe oil was absorbed more quickly than standard fish oil after a single dose, and after two weeks it raised blood EPA and DHA levels to a similar degree. It was also very well tolerated⁷.

Our own Napiers Arctic Omega 3 is made from Norwegian herring caviar. Two capsules provide 450mg of combined EPA and DHA, comfortably above that daily baseline, and many people find it kinder on the stomach than standard fish oil.

Food, supplement, or both?

For most people, the sweet spot is both. Enjoy oily fish once or twice a week for all the extra protein, calcium and vitamin D, and let a supplement cover the days in between.

Omega 3 also plays a part in brain health, and our article on natural ways to improve memory and focus shows how it fits alongside sleep, stress and diet.

If you take medication, have a health condition, or are pregnant, it is always wise to check with your GP or a qualified practitioner first. You are also very welcome to book a free consultation with one of our herbalists, who can help you work out what makes sense for you.

Frequently asked questions

Does sardinemaxxing really give you glowing skin?

It may help a little, but it is not a miracle. Omega 3 supports healthy skin as part of a balanced diet, and any change usually comes from eating better overall rather than from sardines alone.

How many tins of sardines a week is safe?

For most adults, two to four servings of oily fish a week is a comfortable range. The NHS recommends that girls and women who are pregnant, breastfeeding or planning for a pregnancy should stick to no more than 2 portions a week².

Are sardines better than fish oil capsules?

They do different jobs. Sardines give you protein, calcium and vitamin D as well as omega 3, while a capsule gives you a reliable, measured dose of EPA and DHA every day.

Can I get enough omega 3 without eating fish?

It is harder, but possible. Plant foods offer ALA, which converts poorly to EPA and DHA, so many people who avoid fish choose an algae based or fish oil supplement instead.

Are tinned sardines as good as fresh?

Yes, tinned sardines keep most of their omega 3 and are often richer in calcium because you eat the softened bones. Choose ones in olive oil or spring water to keep the salt down.

Is sardinemaxxing suitable if I have gout?

It is best avoided. Sardines are high in purines, which can raise uric acid and trigger flare ups⁶, so a purified omega 3 supplement may be a more comfortable choice.

When is the best time to take an omega 3 supplement?

With a meal that contains some fat is ideal, as this helps absorption. Consistency matters far more than timing, so pick a time of day you will remember.

The takeaway

Sardinemaxxing has its heart in the right place. Most of us need more oily fish, and sardines are a brilliant, affordable way to get it.

Just keep it balanced. A few tins a week, a colourful plate, and a quality supplement such as Napiers Arctic Omega 3 on the days you are not eating fish will serve you far better than any extreme.

References

1. FoodNavigator (2026) No ingredient can make up for a balanced diet: why maxxing trends are not the answer. FoodNavigator.
2. NHS. Fish and shellfish. NHS.
3. British Nutrition Foundation. Key findings from the NDNS report for years 9 to 11 combined. British Nutrition Foundation.
4. USDA FoodData Central. Fish, sardine, Atlantic, canned in oil, drained solids with bone. USDA FoodData Central.
5. EFSA Panel on Dietetic Products, Nutrition and Allergies (2010) Scientific Opinion on Dietary Reference Values for fats. EFSA Journal, 8(3), 1461. EFSA.
6. UK Gout Society. All about gout and diet. UK Gout Society.
7. Cook CM et al. (2016) Bioavailability of long chain omega 3 polyunsaturated fatty acids from phospholipid rich herring roe oil in men and women with mildly elevated triacylglycerols. Prostaglandins, Leukotrienes and Essential Fatty Acids. PubMed.