How Much Oxalate Is in Sorghum Flour?
mg oxalate
per serving
Serving: 1/4 cup (30 g)
Verdict: 🟢 Safe
Per 100g: 42 mg
Data: Harvard T.H. Chan SPH (2024)
The bottom line for Sorghum Flour: Safe (🟢), with 13 mg oxalate per serving — comfortably below the 25 mg safe cutoff. There's no need to limit it. Just keep your usual kidney stone basics in place: water throughout the day and calcium-rich foods at meals.
Putting Sorghum Flour in context: it lands below 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 Sorghum Flour runs 7% below 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. For Sorghum Flour, the measured oxalate value is 13 mg per 1/4 cup (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. For context, Sorghum Flour measures 13 mg per 1/4 cup, rated 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. Sorghum Flour comes in at 13 mg oxalate per 1/4 cup (Safe) in the measured database.