How Much Oxalate Is in Eggplant?
mg oxalate
per serving
Serving: 1/2 cup (42 g)
Verdict: 🟡 Caution
Per 100g: 62 mg
Data: Harvard T.H. Chan SPH (2024)
In practical terms, Eggplant sits in the 25-99 mg range with 26 mg per serving, so treat it as a sometimes-food. Keep servings modest, don't stack it with other moderate-oxalate items in one day, and pair it with calcium to blunt absorption.
Among vegetables, Eggplant sits 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 Eggplant is 4% below the category norm. Within its specific category, Eggplant ranks near the middle of the pack. 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 Caution to compare within the same verdict level.
Why does oxalate per 100g matter?
The per-100g number lets you compare foods on an equal-weight basis, regardless of serving size. It's useful when two foods have very different typical serving sizes, or when you eat more or less than a standard serving. For context, Eggplant measures 26 mg per 1/2 cup, rated Caution.
How accurate is the oxalate measurement?
Harvard's 2024 analysis used ion chromatography — the gold standard for oxalate measurement. These are direct lab values, not estimates or database calculations. Variability exists between samples, but this is the most reliable reference available. Applied to Eggplant: 26 mg oxalate per 1/2 cup — Caution per Harvard (2024).
How does this compare to other foods?
The ratings split at 25 mg (Safe) and 100 mg (Avoid), with 25-99 mg in the Caution band. For context against similar foods, the category pages on OxalateWatch rank every item in that group by oxalate. Applied to Eggplant: 26 mg oxalate per 1/2 cup — Caution per Harvard (2024).