Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
⚠️ Moderate Sodium
Crab has 177 mg sodium per 100g. While not critically high, kidney stone patients should monitor sodium intake as excess can raise urinary calcium.
📏 Moderate Animal Protein
Crab contains animal protein (about 20g 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
Should I avoid Crab if I have kidney stones?
Safe pick. 0 mg oxalate per 3 oz means Crab is comfortably in the green zone. Harvard's 2024 lab data says so. No need to track this one obsessively.
What's the oxalate content of Crab?
The exact figure: 0 mg of oxalate per 3 oz of Crab. Works out to 0 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.
Is Crab low or high oxalate?
Low. 0 mg per 3 oz puts Crab firmly in the low-oxalate category. Safe for regular eating if you're managing kidney stones.
What are the best low-oxalate alternatives to Crab?
Look at the 'Safe Alternatives' section right below this FAQ. Those foods are all under 25 mg oxalate per serving and in the same category as Crab. Pick from those.
Does Crab have a lot of animal protein?
Yeah, Crab is an animal protein source. That matters because excess animal protein raises uric acid and urinary calcium — both stone promoters. Keep portions around 3 oz (palm-sized) per meal.
How much sodium does Crab have?
Sodium's not the issue here. Crab has 177 mg per 100g — comfortably low. No need to worry about salt pushing extra calcium into your urine with this food.