Best Fish for Uric Acid: Which to Eat and Which to Avoid

You’ve probably been told to “avoid fish” if you’re managing uric acid levels. That’s rubbish advice.

It’s far too broad, and it leads people to cut out an entire protein source they don’t need to.

The reality? The best fish for uric acid are the low purine fish you’ll find at any NZ fishmonger. Others need a bit of portion control. And a few high-purine species, yes, you should limit or avoid.

The difference comes down to purines, and it varies massively between species.

Here’s the practical breakdown so you can stop guessing and start eating with confidence.

Why Fish Affects Uric Acid Levels

When your body digests food, it breaks down compounds called purines. Those purines get converted into uric acid. Your kidneys then filter it out.

The problem? Some fish are packed with purines. Eat too much of the wrong type, and you’re giving your body more uric acid to deal with than it can comfortably handle.

But not all fish are created equal. White, lean fish tend to be much lower in purines than oily, darker-fleshed varieties. That’s the key distinction.

Low-Risk Fish: Eat These Regularly

These are your go-to options. They’re lean, lower in purines, and won’t cause problems for most people when eaten as part of a balanced diet.

Hoki

A staple in New Zealand. Mild flavour, low in purines, and easy to cook. Bake it, grill it, pan-fry it lightly. It’s one of the safest fish choices you can make.

Tarakihi

Another excellent option. White flesh, lean protein, and widely available at your local fishmonger. Pair it with vegetables and you’ve got a meal that’s genuinely good for you.

Gurnard

Underrated and affordable. Gurnard is a firm, white fish that sits comfortably in the low-purine category. Great in a simple pan-fry with a squeeze of lemon.

You can comfortably eat low-risk white fish two to three times a week without worrying about uric acid levels. That’s a solid protein rotation right there.

Moderate-Risk Fish: Watch Your Portions

These aren’t off the table, but they need a bit more thought. Moderate purine levels mean you should keep portions reasonable and not eat them every day.

Snapper

One of the most popular fish in New Zealand, and the good news is it sits in the moderate range. A palm-sized portion once or twice a week is fine for most people. For more detail, check out our article on snapper and uric acid.

Blue cod

A favourite in the South Island. Similar to snapper in terms of purine levels. Enjoy it, just don’t make it your daily protein.

Canned tuna

Convenient, affordable, and decent protein. But the purine content is higher than most white fish. A tin a couple of times a week is reasonable. Don’t live on the stuff.

The key with moderate-risk fish is portion control. A palm-sized serving, not a whole fillet the size of your forearm. Keep it sensible.

High-Risk Fish: Limit or Avoid

These are the ones that genuinely deserve caution. They’re high in purines, and eating them regularly can push your uric acid levels up noticeably.

Sardines

Small fish, big purine load. Sardines are one of the worst offenders. If your uric acid levels are already elevated, these should be rare at best.

Anchovies

Same story. Extremely high in purines relative to their size. That pizza topping or Caesar salad dressing adds up faster than you’d think.

Mackerel

Oily, dark-fleshed, and loaded with purines. It’s a shame because mackerel has great omega-3 content, but the purine cost is too high for people managing uric acid.

Smoked salmon

This one surprises people. Fresh salmon is moderate risk on its own, but the smoking process concentrates the purines. Smoked salmon at brunch? Treat it as an occasional indulgence, not a regular habit. For a deeper look at salmon specifically, read our guide on salmon and uric acid.

During a uric acid flare-up, avoid high-risk fish entirely. Your body is already struggling to process what it has. Don’t add fuel to the fire.

Better Protein Alternatives

If you’re cutting back on certain fish, you still need protein. Here are solid swaps that won’t push your uric acid levels up:

• Lean chicken breast – Low in purines, versatile, easy to prepare
• Pork tenderloin – Surprisingly lean and lower in purines than most red meat
• Eggs – Virtually no purines. Scrambled, poached, boiled, whatever works
• Tofu and tempeh – Plant-based options that keep purines low

You don’t need to turn your diet upside down. Just shift the balance toward lower-risk options and keep the high-purine fish for rare occasions.

Practical Tips for Eating Fish With Uric Acid in Mind

Keep portions palm-sized.

You don’t need a 300g fillet to get enough protein. A palm-sized serve, roughly 100-120g, is plenty.

Grill or bake, don’t deep-fry.

Battered fish from the chippy adds fat and calories without improving the purine situation. Keep it simple.

Skip the rich sauces.

Creamy, butter-heavy sauces add unnecessary load. A squeeze of lemon, fresh herbs, and a drizzle of olive oil is all you need.

Pair fish with alkaline vegetables.

Broccoli, kumara, spinach, and salad greens complement fish perfectly and support your overall uric acid management. For more on which vegetables help, see our guide on vegetables and uric acid.

Stay hydrated.

Water helps your kidneys process uric acid. Every meal should come with a big glass of water, especially when you’re eating protein.

The Bottom Line

Fish isn’t the enemy. The blanket advice to “avoid fish” is lazy and incomplete.

Some fish are perfectly safe, some need moderation, and a few genuinely should be limited.

Know which category your favourite fish falls into, control your portions, and balance your meals with vegetables and plenty of water. That’s the practical approach.

And if you want to support your body’s ability to manage uric acid beyond diet alone, URICAH brings together 14 natural ingredients with clear dosages and real evidence behind them. No proprietary blends, no guesswork. Just practical support backed by a 90-day money-back guarantee and over 2,200 customer reviews.

This article is for informational purposes only and is not intended as medical advice. Consult your healthcare provider before making changes to your health routine.