Is Deep fried Potato Safe for Kidney Stones? (Caution)
mg oxalate
per serving
Serving: 1/2 cup (112 g)
Verdict: 🟡 Caution
Per 100g: 32 mg
Data: Harvard T.H. Chan SPH (2024)
Here's the takeaway: Deep fried Potato falls in the Caution band (🟡) at 36 mg oxalate per serving. Not off-limits, but not free — moderate portions, a few times a week at most, and preferably with dairy or another calcium source at the same meal.
Putting Deep fried Potato in context: it lands close to 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 Deep fried Potato runs 33% above that baseline. That places it on the higher end for oxalate 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 cutoff comes from clinical guidance for stone formers. Below it, a food's oxalate contribution is small enough not to move the needle for most patients. Harvard's 2024 lab data sits behind these figures — direct measurements, not estimates. Applied to Deep fried Potato: 36 mg oxalate per 1/2 cup — Caution per Harvard (2024).
Can I eat this food every day?
For Safe foods (under 25 mg/serving), daily use is generally fine. Caution and Avoid foods work better as occasional items — rotate them with safer options so no single high-oxalate food becomes a habit. For context, Deep fried Potato measures 36 mg per 1/2 cup, rated Caution.
Where does the oxalate data come from?
Every oxalate figure is sourced from Harvard T.H. Chan SPH (2024), distributed via the OHF database. The values come from actual lab measurements of the foods — not from database averages or estimates. Deep fried Potato comes in at 36 mg oxalate per 1/2 cup (Caution) in the measured database.
Should I also check sodium and calcium?
Yes — oxalate alone doesn't decide stone risk. Sodium pushes more calcium into urine, and calcium from food (not supplements) helps bind oxalate during digestion. The main food page covers sodium and calcium alongside oxalate. Deep fried Potato comes in at 36 mg oxalate per 1/2 cup (Caution) in the measured database.