Is Preserved w/out sugar Pineapple Safe for Kidney Stones? (Safe)
mg oxalate
per serving
Serving: 1/4 cup (40 g)
Verdict: 🟢 Safe
Per 100g: 5 mg
Data: Harvard T.H. Chan SPH (2024)
Here's the takeaway: Preserved w/out sugar Pineapple earns a Safe rating (🟢) at 2 mg oxalate per serving. Being under 25 mg means it fits comfortably in everyday eating. Keep your usual habits — adequate fluids and calcium in meals — and Preserved w/out sugar Pineapple poses no special concern.
Putting Preserved w/out sugar Pineapple in context: it lands well below the category average of 21 mg. In the database, 89% of fruits (101 of 113) fall in the 🟢 Safe group (under 25 mg oxalate/serving). The typical fruits here averages 21 mg oxalate per serving, so Preserved w/out sugar Pineapple runs 91% below that baseline. That places it among the lower-oxalate options 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 fruits rated Safe 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. For context, Preserved w/out sugar Pineapple measures 2 mg per 1/4 cup, rated Safe.
Can I eat this food every day?
Daily eating is fine for Safe foods (under 25 mg/serving). For Caution or Avoid foods, spread them out and alternate with low-oxalate picks. The idea is keeping your weekly oxalate load manageable, not eliminating any single food. Preserved w/out sugar Pineapple comes in at 2 mg oxalate per 1/4 cup (Safe) in the measured database.
Where does the oxalate data come from?
The numbers come from Harvard T.H. Chan SPH's 2024 laboratory measurements, published through the OHF database. Direct lab analysis, which is why they're treated as the reference values for food oxalate. Applied to Preserved w/out sugar Pineapple: 2 mg oxalate per 1/4 cup — Safe per Harvard (2024).
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. For Preserved w/out sugar Pineapple, the measured oxalate value is 2 mg per 1/4 cup (Safe).