How Much Oxalate Is in Tea (Herbal)?
mg oxalate
per serving
Serving: 1 cup (237 g)
Verdict: 🟢 Safe
Per 100g: 6 mg
Data: Harvard T.H. Chan SPH (2024)
In practical terms, Tea (Herbal) is a low-risk food for kidney stone patients. Its 14 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 beverages, Tea (Herbal) sits well below the category average of 40 mg. For context, 82 out of 92 beverages (89%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average beverages in our database has 40 mg oxalate per serving — which means Tea (Herbal) is 65% below the category norm. Within its specific category, Tea (Herbal) 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 beverages rated Safe to compare within the same verdict level.
Why does oxalate per 100g matter?
Normalizing to 100 grams removes serving-size differences, so you can judge which food is genuinely denser in oxalate. It matters most when you eat a bigger or smaller portion than the listed serving. For context, Tea (Herbal) measures 14 mg per 1 cup, rated Safe.
How accurate is the oxalate measurement?
These values come from Harvard's 2024 ion-chromatography analysis — the gold-standard method for oxalate. Real measured data rather than estimates. Sample-to-sample variation exists, but no published source is more dependable for food oxalate. For Tea (Herbal), the measured oxalate value is 14 mg per 1 cup (Safe).
How does this compare to other foods?
Foods under 25 mg per serving are rated Safe. Foods between 25-99 mg are Caution. 100+ mg is Avoid. Check the food's category page on OxalateWatch to see how it compares to similar foods. For context, Tea (Herbal) measures 14 mg per 1 cup, rated Safe.