Man Has 420 Kidney Stones Removed, Doctors Blame Tofu Diet

A 55-year-old man in China underwent almost three hours of surgery after a CT scan revealed his system was completely packed with kidney stones. The patient, identified only as Mr. He, had an astounding 420-plus kidney stones removed. Now doctors believe his tofu-rich diet is to blame.

The shocking discovery was made after He complained of terrible stomach pains, Chinese media outlets reported.

He had to be booked for an immediate operation because his condition left him unable to urinate, and doctors feared he would have to lose the kidney.

Kidney stones are caused by a buildup of calcium, which hardens in the kidney and prevents normal functions. In this case, doctors believe that Mr. He’s daily intake of tofu caused the massive blockages. Tofu is rich in calcium, and eating it daily without drinking enough water can lead to the painful accumulation of unprocessed kidney stones.

This is not the first time He has had a painful experience with kidney stones. Apparently about 20 years ago he was treated for more than 10 stones at one time—nowhere near the several hundred removed recently.

He’s doctor said he’d never seen anything like this before. The two-hour and 45-minute procedure resulted in over 420 stones, all of varying sizes.

Dr. Wei Yuben, who performed the operation, noted that that the number didn’t include “the tiny rice-sized stones that were taken out using specialist suction equipment.”

He is reportedly recovering well, and his family has promised to restrict his diet to reduce the amount of tofu consumed on a regular basis.