Is Potato Salad Safe for Kidney Stones? (Caution)
mg oxalate
per serving
Serving: 1/2 cup (138 g)
Verdict: 🟡 Caution
Per 100g: 19 mg
Data: Harvard T.H. Chan SPH (2024)
The bottom line for Potato Salad: Caution (🟡) at 26 mg oxalate per serving. It's the middle of the road — usable, but with guardrails. Half portions, occasional frequency, calcium pairing, and watching your total daily intake keeps it workable.
Putting Potato Salad in context: it lands below the category average of 27 mg. In the database, 80% of vegetables (219 of 271) fall in the 🟢 Safe group (under 25 mg oxalate/serving). The typical vegetables here averages 27 mg oxalate per serving, so Potato Salad runs 4% below that baseline. That places it near the middle of the pack in its category. Why this matters: the gap between two Safe foods can be wide — one may hold 5 mg oxalate while another sits at 24 mg. The lower one leaves more room in your day. See all vegetables rated Caution for a full side-by-side.
Why does the safe threshold matter?
The 25 mg per serving threshold is based on clinical guidance for kidney stone patients. Harvard's lab data (2024) provides the most reliable oxalate measurements available — no database estimates, direct lab analysis. For context, Potato Salad measures 26 mg per 1/2 cup, rated Caution.
Can I eat this food every day?
If it's in the Safe zone (under 25 mg/serving), yes — it can be a regular part of your diet. For Caution or Avoid foods, frequency matters. Rotate them with lower-oxalate options throughout the week. Applied to Potato Salad: 26 mg oxalate per 1/2 cup — Caution per Harvard (2024).
Where does the oxalate data come from?
Harvard T.H. Chan School of Public Health (2024) via the OHF database. These are direct laboratory measurements — the most reliable oxalate data available for food. For Potato Salad, the measured oxalate value is 26 mg per 1/2 cup (Caution).
Should I also check sodium and calcium?
Yes — kidney stone risk isn't just about oxalate. High sodium increases urinary calcium (a stone promoter). Adequate dietary calcium (from food, not supplements) actually binds oxalate in your gut. Check the food's full nutrition page for the complete picture. Potato Salad comes in at 26 mg oxalate per 1/2 cup (Caution) in the measured database.