How Much Oxalate Is in Red wine vinegar?
mg oxalate
per serving
Serving: 1 tbsp (15 g)
Verdict: 🟢 Safe
Per 100g: 0 mg
Data: Harvard T.H. Chan SPH (2024)
Here's the takeaway: Red wine vinegar earns a Safe rating (🟢) at 0 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 Red wine vinegar poses no special concern.
Putting Red wine vinegar in context: it lands well below the category average of 40 mg. In the database, 89% of beverages (82 of 92) fall in the 🟢 Safe group (under 25 mg oxalate/serving). The typical beverages here averages 40 mg oxalate per serving, so Red wine vinegar runs 100% 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 beverages 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. For Red wine vinegar, the measured oxalate value is 0 mg per 1 tbsp (Safe).
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. Red wine vinegar comes in at 0 mg oxalate per 1 tbsp (Safe) in the measured database.
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. Applied to Red wine vinegar: 0 mg oxalate per 1 tbsp — Safe per Harvard (2024).