Is Banana bread flax Bars Safe for Kidney Stones? (Safe)
mg oxalate
per serving
Serving: 1 bar (34 g)
Verdict: 🟢 Safe
Per 100g: 11 mg
Data: Harvard T.H. Chan SPH (2024)
What this means: Banana bread flax Bars is rated Safe (🟢). At 4 mg oxalate per serving, it's well under the 25 mg safety threshold. You can include it regularly in a kidney stone diet. Pair it with calcium-rich foods (dairy, fortified plant milks) for additional protection, and drink plenty of water throughout the day.
Among nuts & seeds, Banana bread flax Bars sits well below the category average of 34 mg. For context, 29 out of 51 nuts & seeds (56%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average nuts & seeds in our database has 34 mg oxalate per serving — which means Banana bread flax Bars is 89% below the category norm. Within its specific category, Banana bread flax Bars 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 nuts & seeds rated Safe to compare within the same verdict level.
Why does the safe threshold matter?
The 25 mg cutoff comes from clinical guidance for stone formers. Below it, a food's oxalate contribution is small enough not to move the needle for most patients. Harvard's 2024 lab data sits behind these figures — direct measurements, not estimates. Banana bread flax Bars comes in at 4 mg oxalate per 1 bar (Safe) in the measured database.
Can I eat this food every day?
For Safe foods (under 25 mg/serving), daily use is generally fine. Caution and Avoid foods work better as occasional items — rotate them with safer options so no single high-oxalate food becomes a habit. For Banana bread flax Bars, the measured oxalate value is 4 mg per 1 bar (Safe).
Where does the oxalate data come from?
The numbers come from Harvard T.H. Chan SPH's 2024 laboratory measurements, published through the OHF database. Direct lab analysis, which is why they're treated as the reference values for food oxalate. Banana bread flax Bars comes in at 4 mg oxalate per 1 bar (Safe) in the measured database.
Should I also check sodium and calcium?
Yes — oxalate alone doesn't decide stone risk. Sodium pushes more calcium into urine, and calcium from food (not supplements) helps bind oxalate during digestion. The main food page covers sodium and calcium alongside oxalate. For context, Banana bread flax Bars measures 4 mg per 1 bar, rated Safe.