Is Mushrooms Variety (Variety 2) Safe for Kidney Stones? (Safe)
mg oxalate
per serving
Serving: 1/3 cup, dried (5 g)
Verdict: 🟢 Safe
Per 100g: 76 mg
Data: Harvard T.H. Chan SPH (2024)
In practical terms, Mushrooms Variety (Variety 2) is a low-risk food for kidney stone patients. Its 4 mg oxalate per serving stays under the 25 mg line, so it can appear in your regular rotation without extra calculation. As always, staying hydrated and getting dietary calcium supports stone prevention.
Among vegetables, Mushrooms Variety (Variety 2) sits well below the category average of 27 mg. For context, 219 out of 271 vegetables (80%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average vegetables in our database has 27 mg oxalate per serving — which means Mushrooms Variety (Variety 2) is 86% below the category norm. Within its specific category, Mushrooms Variety (Variety 2) ranks among the lower-oxalate options. This context matters because two 'Safe' foods can have very different oxalate levels — one might have 5 mg while another has 24 mg. Both are Safe, but the first gives you more dietary flexibility. Browse all vegetables rated Safe to compare within the same verdict level.
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. Mushrooms Variety (Variety 2) comes in at 4 mg oxalate per 1/3 cup, dried (Safe) in the measured database.
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. Mushrooms Variety (Variety 2) comes in at 4 mg oxalate per 1/3 cup, dried (Safe) in the measured database.
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 Mushrooms Variety (Variety 2), the measured oxalate value is 4 mg per 1/3 cup, dried (Safe).
Should I also check sodium and calcium?
Definitely. Oxalate is only part of the story — high sodium raises calcium in urine, and dietary calcium (from food, not pills) binds oxalate in the gut. The food's main page lists both, so it's worth checking before you plan around it. For context, Mushrooms Variety (Variety 2) measures 4 mg per 1/3 cup, dried, rated Safe.