What type of foods should clients with cystine nephrolithiasis prefer?

Clients with cystine nephrolithiasis, a type of kidney stone disorder characterized by the formation of cystine stones, benefit from a diet that emphasizes alkaline foods. Cystine is an amino acid that can precipitate and form stones when the urine is acidic. Therefore, the goal for managing this condition is to promote more alkaline urine to help dissolve cystine and prevent stone formation.

Alkaline foods can help to raise the pH level of urine, thus reducing the likelihood of cystine crystals forming. Foods that are typically considered alkaline include fruits and vegetables, especially leafy greens, and legumes.

The other food types listed do not offer the same benefits for clients with cystine nephrolithiasis. Sour foods can contribute to acidity in urine, while high-fat and high-protein diets may exacerbate stone formation by increasing the levels of substances that lead to crystal formation in the kidneys. Thus, focusing on alkaline foods is the most appropriate dietary choice for managing this condition effectively.