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How Much Oxalate Is in Star Fruit Juice (Star Fruit)?

Here's what the lab found: one 1 cup portion of Star Fruit Juice (Star Fruit) holds 1990 mg oxalate. Per 100 grams, it's 829 mg. These come from Harvard's 2024 direct measurements rather than calculated estimates. Against the 25 mg serving guideline, Star Fruit Juice (Star Fruit) is rated Avoid — above the avoid line.
✓ Lab-Verified Data Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.
1990
mg oxalate
per serving
Food: Juice, Star Fruit, Sour (Homemade)
Serving: 1 cup (240 g)
Verdict: 🔴 Avoid
Per 100g: 829 mg
Data: Harvard T.H. Chan SPH (2024)
🔄 Lower-Oxalate Alternatives
🟢 Alcohol
0 mg / serving
🟢 Grapefruit Juice
0 mg / serving
🟢 Bio Tears Oral Gel Caps
0 mg / serving
🟢 Curcumin
0 mg / serving
💡 What This Means for Your Diet

Here's the takeaway: Star Fruit Juice (Star Fruit) is a Avoid food (🔴) at 1990 mg oxalate per serving — past the 100 mg line. The safest approach is choosing a lower-oxalate alternative instead. If it shows up occasionally in a meal, keep the portion minimal and boost fluids.

📊 Star Fruit Juice (Star Fruit) vs. Other Beverages

Putting Star Fruit Juice (Star Fruit) in context: it lands well above 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 Star Fruit Juice (Star Fruit) runs 4921% above that baseline. That places it on the higher end for oxalate 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 Avoid for a full side-by-side.

❓ Related Questions

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, Star Fruit Juice (Star Fruit) measures 1990 mg per 1 cup, rated Avoid.

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 Star Fruit Juice (Star Fruit): 1990 mg oxalate per 1 cup — Avoid per Harvard (2024).

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 Star Fruit Juice (Star Fruit), the measured oxalate value is 1990 mg per 1 cup (Avoid).

Star Fruit Juice (Star Fruit) full page 🟢 Safe foods Avoid foods
This is dietary reference information, NOT medical advice. Talk to your doctor or a registered dietitian before changing your diet. Oxalate tolerance varies by person, stone type, and medication.