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NDI Diet & Nutrition
Why sodium and solute can matter in NDI, how families approach nutrition, and where to find NDI-specific guidance.
🍎 Why diet can matter in NDI
NIDDK explains that a healthcare professional may recommend a diet lower in salt and protein to help reduce urine production, particularly in nephrogenic DI. NDIF also provides NDI-specific nutrition guidance, including low-sodium choices, label-reading, and recipe resources.
The 300–500 mg sodium target
NDI families and NDI-specific nutrition guidance commonly discuss a very low daily sodium intake, often in the range of 300–500 mg/day. This is not a universal prescription: age, size, nutrition status, medications, tube feeds, other medical conditions, and clinician goals all matter. Use the sodium target prescribed by your own medical team.
Why reduce sodium and solute?
When the kidneys cannot conserve water normally, reducing dietary solute can reduce the amount of solute that must be excreted and can help lower urine volume. The goal is not “healthy eating” in the ordinary sense—it is a medically individualized strategy to reduce the burden of NDI.
Learning to read labels
- Look at the sodium per serving, not just the serving size.
- Check how many servings you or your child actually eats.
- Remember that sodium can add up across meals, snacks, drinks, formulas, and medications.
- Compare brands—two similar foods can have very different sodium amounts.
- For tube-fed children, ask the dietitian about the sodium and total solute contribution of the formula and additives.
What belongs in an NDI diet resource library?
Food lists
Low-sodium options, higher-sodium foods to watch, and practical grocery ideas.
Recipes
Family-friendly ideas that can be adapted to an individualized sodium/solute plan.
School & travel
Planning lunches, classroom snacks, restaurants, trips, and backup foods.
NDIF nutrition resources
NDIF Patients & Parents includes NDI-specific nutrition guidance, low-sodium food choices, label-reading tips, and recipe resources.
More NDI diet tools are coming.
NDIAG plans to build this section into a practical library with label-reading help, food lists, recipes, tube-feeding considerations, and family-tested ideas.