How Much Oxalate Is in Tea (Iced)?
mg oxalate
per serving
Serving: 1 cup (240 g)
Verdict: 🟢 Safe
Per 100g: 7 mg
Data: Harvard T.H. Chan SPH (2024)
Here's the takeaway: Tea (Iced) earns a Safe rating (🟢) at 17 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 Tea (Iced) poses no special concern.
Putting Tea (Iced) in context: it lands close to the category average of 14 mg. In the database, 84% of grains & pasta (170 of 201) fall in the 🟢 Safe group (under 25 mg oxalate/serving). The typical grains & pasta here averages 14 mg oxalate per serving, so Tea (Iced) runs 22% above 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 grains & pasta rated Safe for a full side-by-side.
Why does oxalate per 100g matter?
Per-100g values put every food on the same scale, which is handy when serving sizes differ a lot between foods — or when your portion doesn't match the standard serving. It lets you compare apples to apples on oxalate density. Tea (Iced) comes in at 17 mg oxalate per 1 cup (Safe) in the measured database.
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. Tea (Iced) comes in at 17 mg oxalate per 1 cup (Safe) in the measured database.
How does this compare to other foods?
Anything under 25 mg per serving is Safe; 25-99 mg is Caution; 100 mg or more is Avoid. The category pages on OxalateWatch list foods side by side, so you can see where this one ranks. Tea (Iced) comes in at 17 mg oxalate per 1 cup (Safe) in the measured database.