[RU] Oxalate and kidney stones: spinach, beetroot, and chia caution

Pyccкaя вepcия: Oxalate-rich foods like spinach, rhubarb, beetroot, and chia contribute to kidney stone formation in susceptible individuals. Pairing oxalate foods with calcium-rich foods like kefir reduces oxalate absorption. Boiling spinach reduces oxalate content significantly.