[hombre_fatal]

> Despite significantly more dietary oxalates (254 mg/day) and oxalate-containing foods such as nuts, vegetables, and whole grains, participants with higher DASH scores have a 40–50% decreased risk of kidney stones [68]. This is perhaps attributed to the protective and synergistic effects of phytate, potassium, calcium, and other phytochemicals all abundant in the DASH dietary pattern. Similar findings regarding the protective role of vegetables on urolithiasis risk were reported by Zhuo et al. [69]. While animal protein consumption was associated with higher kidney stone risk, vegetable and tea consumption were associated with a decreased risk of stone formation.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7600777/

A lot of the "common sense" about oxalates just sound like social media memes.

[DennisP]

It's possible to eat a DASH diet while leaving out the foods with the highest oxalates. It's what I do myself.

Avoiding high-oxalate foods if you're prone to oxalate stones isn't a meme, it was the advice of my urologist and the printed pamphlets he gave me. Along with drinking plenty of water, especially with meals as I mentioned above. As for calcium, it's mentioned as protective in your quote.