How Much Sodium Is in Fish and Seafood?

Fish and Seafood has 213 mg sodium per 100g — moderate, but worth tracking. The NKF recommends under 2,300 mg/day total. If you eat Fish and Seafood regularly, adjust sodium in your other meals. Don't add extra salt during cooking.

✓ Medically Reviewed Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

3
mg oxalate
per serving

Food: Fish and Seafood, Variety
Serving: 4 oz (113 g)
Verdict: 🟢 Safe
Per 100g: 3 mg
Data: Harvard T.H. Chan SPH (2024)

💡 What This Means for Your Diet

What this means: Fish and Seafood is rated Safe (🟢). At 3 mg oxalate per serving, it's well under the 25 mg safety threshold. You can include it regularly in a kidney stone diet. Pair it with calcium-rich foods (dairy, fortified plant milks) for additional protection, and drink plenty of water throughout the day.

📊 How Fish and Seafood Compares

Among seafood, Fish and Seafood sits well above the category average of 2 mg. For context, 55 out of 55 seafood (100%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average seafood in our database has 2 mg oxalate per serving — which means Fish and Seafood is 94% above the category norm. Within its specific category, Fish and Seafood ranks on the higher end for oxalate. This context matters because two 'Safe' foods can have very different oxalate levels — one might have 5 mg while another has 24 mg. Both are Safe, but the first gives you more dietary flexibility. Browse all seafood rated Safe to compare within the same verdict level.

❓ Related Questions

How does sodium affect kidney stones?

High sodium intake increases calcium in urine (hypercalciuria), which raises the risk of calcium-based kidney stones. The general recommendation is under 2,300 mg/day — lower if you're actively preventing stones.

What's a safe daily sodium target?

Aim for under 2,000-2,300 mg per day. Check labels on packaged foods — sodium adds up quickly. Cooking at home with fresh ingredients gives you the most control over sodium intake.

How do I reduce sodium when eating out?

Ask for sauces and dressings on the side. Choose grilled/steamed over fried. Skip the soup (often very high sodium). Request no added salt. These small changes make a measurable difference.

This is dietary reference information, NOT medical advice. Talk to your doctor or a registered dietitian before changing your diet. Oxalate tolerance varies by person, stone type, and medication.