If by “white poison” you mean white sugar, there is an important distinction: sugar does not literally “destroy your kidneys” after eating it. However, high intake of added sugar—especially sugary drinks—can contribute to obesity and type 2 diabetes, and diabetes is the leading cause of chronic kidney disease.
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The bigger kidney threat
The strongest evidence points to uncontrolled blood sugar and high blood pressure as major drivers of kidney damage, rather than one particular “poisonous” white food.
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To protect your kidneys:
Cut back on added sugars, especially soda, sweetened tea, energy drinks, and other sugary beverages.
Keep blood pressure under control.
If you have diabetes, keep blood glucose in your recommended range.
Maintain a healthy weight and stay physically active.
Avoid excessive use of medicines that can injure the kidneys, particularly certain NSAID painkillers.
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If you’re concerned about your kidneys, blood and urine tests are much more useful than symptoms alone, because early kidney disease often causes no symptoms.
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If you want, I can also give you the 10 foods/drinks most worth limiting for kidney health—and the 10 that are generally kidney-friendly.
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