"I cried the first time I ate leafy greens again."
Years of avoiding it after my first stone. My doctor told me about OxFree and now I have it in salads twice a week. No new stones in 18 months.

Eat the foods you love We’ll handle the oxalate.
120 calcium citrate/malate + B6 tablets. Binds dietary oxalate at the meal — before it can crystallize in your kidneys. Two tablets with meals.


Studies show calcium taken with meals can reduce urinary oxalate by 40–60% in stone formers.*
The trick is timing and form. Calcium citrate, taken with the meal, binds the oxalate in your gut.
Shop OxFreePair OxFree with the meals featuring spinach, almonds, chocolate, beets, or sweet potato — twice a day.
Elemental calcium meets dietary oxalate before absorption and forms an insoluble complex that exits in stool.
Lower urinary oxalate means less chance of calcium-oxalate crystals — the most common stone type.
Most stone-formers leave the urologist with a printout: avoid these 40 foods. The list reads like everything healthy. OxFree is built so you don't have to live by it — take it with the meal, and the oxalate gets bound in your gut.
"I tell patients: a low-oxalate diet works on paper. OxFree works in real life."
Oxalate reduction has historically meant restrictive diets or generic calcium pills with the wrong timing. OxFree was built for the way you actually eat.
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* OxFree is a dietary supplement, not a prescription medication. Talk to your physician about what is right for your care plan.
Bind oxalate before it reaches your system.
OxFree's calcium alkali (citrate/malate) meets oxalate in your gut — long before it reaches the kidney — and binds it into an insoluble complex that exits in stool. All before crystals start to form.

Timing is everything. Take with the meal — not before, not after — so the calcium is in your gut at the same time as the oxalate. Your urologist may adjust based on 24-hour urine results.
"I cried the first time I ate leafy greens again."
Years of avoiding it after my first stone. My doctor told me about OxFree and now I have it in salads twice a week. No new stones in 18 months.
"It's the meal-timing that does it."
I tried other supplements before — wrong timing, no effect. Taking OxFree with the actual meal made the urine oxalate numbers drop on my next 24-hour collection.
"Less guilt, less anxiety, fewer problems."
I used to inspect every menu. Now I take two with dinner and live my life. The mental load alone was worth it.
"My urologist now keeps a sample on her desk."
After my last hospital visit she started recommending it to other patients. I'm a believer. So is she.

"Telling a stone-former to give up spinach and chocolate for life isn't a treatment plan — it's a punishment. OxFree is the answer I wish I could've handed every patient who asked 'so what can I eat?'"
Still have a question? Our patient-care team, including our medical advisor — replies in one business day.
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