Dishes · Soups and mains
Is lentil soup high in oxalate?
Yes. High, 32 mg per 1 bowl
Range 24 to 50 mg across the studies behind each ingredient
One serving of lentil soup (1 bowl) has about 32 mg of oxalate, 64% of the 50 mg a day many stone clinics aim for. Celery carries 38% of it.
If your doctor has put you on a low-oxalate diet, have it with something high in calcium, like milk, yogurt or cheese. Calcium in the same meal binds oxalate in the gut, so less of it reaches your urine.
What's in it
A typical home recipe for one serving. Each ingredient uses the middle published value from its own page, scaled to the amount in the dish. Your recipe may differ, so add your own in the calculator.
| Ingredient | Amount | Oxalate | Share |
|---|---|---|---|
| Celery grade C | 40 g 1 × 1 medium stalk | 12 mg | 38% |
| Carrots grade C | 30 g 0.5 × 1 medium carrot | 7.4 mg | 23% |
| Lentils grade B | 48 g 1 × 1/4 cup dry (about 1/2 cup cooked) | 6.6 mg | 21% |
| Tomato grade C | 61 g 0.5 × 1 medium tomato | 5 mg | 16% |
| Onion grade A | 55 g 0.5 × 1 medium onion | 1 mg | 3% |
Not counted, no published value on this site yet: broth and olive oil.
By Oliver Silen · Data checked November 2, 2026 · Not medical advice