Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
📏 Low Animal Protein
Mackerel contains animal protein (about 0g per 100g). The AUA recommends limiting non-dairy animal protein to 3 oz (palm-sized) per meal. Reference guide, not an official standard.
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 3 oz | 85 g | 0 mg | Safe |
| 2 x 3 oz | 170 g | 0 mg | Safe |
| ½ x 3 oz | 42 g | 0 mg | Safe |
🏷️ Tags
🟢 See all Seafood rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
❓ Frequently Asked Questions
Can I eat Mackerel with kidney stones?
No red flags here. Just 0 mg per 3 oz — well below the 25 mg danger line. You can keep Mackerel in your regular rotation. Data comes from Harvard (2024).
What's the oxalate content of Mackerel?
0 mg — that's the oxalate in a standard 3 oz of Mackerel. For the 100g comparison freaks: 0 mg. Source is Harvard's 2024 food analysis project.
Is Mackerel high in oxalates?
Nope. Mackerel is a low-oxalate food — just 0 mg per 3 oz. Well under the 25 mg cutoff. You're in the clear with this one.
What can I eat instead of Mackerel?
The easiest move: swap Mackerel for any 🟢 Safe food in the related foods grid. They're all under 25 mg per serving and verified by Harvard's 2024 data. Problem solved.
Does Mackerel have a lot of animal protein?
It has animal protein, which increases kidney stone risk through uric acid and calcium in urine. Not a reason to eliminate it — just a reason to watch portions. AUA says about 3 oz per meal.
How reliable is the data for Mackerel?
The oxalate number for Mackerel — 0 mg per serving — is from Harvard's 2024 lab analysis. That part is solid. The USDA nutrition data (sodium, protein, calcium) is still being matched — we'll update when it's available.