9 Foods To Steer Clear Of If You Have Kidney Disease And Diabetes

Managing both kidney disease and diabetes can be challenging, especially when it comes to making the right food choices. These two conditions are closely linked, and what you eat plays a critical role in controlling blood sugar levels and protecting your kidneys from further damage.

Many everyday foods may seem harmless but can be high in sodium, sugar, phosphorus, or unhealthy fats—ingredients that can worsen both conditions. In this blog, we’ll highlight 9 foods you should avoid if you have kidney disease and diabetes.

By steering clear of these harmful choices and replacing them with healthier alternatives, you can better manage your health, reduce complications, and improve your overall quality of life. Whether you’re newly diagnosed or looking to refine your diet, this guide will help you make smarter, kidney- and diabetes-friendly food decisions.

1. Sausages/Hot Dogs

People with kidney disease and diabetes should avoid processed meats like sausages and hot dogs because they are extremely high in sodium, saturated fats, and preservatives. These meats often contain phosphate additives and nitrates, which can worsen kidney function over time.

The high sodium content contributes to high blood pressure, which is already a concern for those with kidney issues. In diabetes, maintaining healthy blood pressure is crucial to prevent further damage to the kidneys. Additionally, the saturated fats in these meats increase the risk of cardiovascular disease, a common complication of both kidney disease and diabetes.

Choosing fresh, lean protein sources such as chicken breast, turkey, or plant-based options can help manage both conditions more effectively. It’s also wise to read labels carefully if buying meat products, as many processed varieties contain hidden sugars and additives that can cause blood sugar spikes and stress the kidneys.

2. Canned Soups

Canned soups may seem like a convenient option, but they are typically packed with sodium, preservatives, and sometimes added sugars. Sodium is especially harmful for individuals with kidney disease because it can cause fluid retention, increase blood pressure, and place additional stress on already impaired kidneys.

For diabetics, added sugars in some cream-based or tomato-based soups can disrupt blood sugar levels. Moreover, canned products often contain phosphate additives to enhance flavor and shelf life, which can be detrimental to kidney health. People with kidney disease already have trouble filtering out excess phosphorus, which can lead to bone and heart issues.

A better alternative would be to make homemade soups with fresh vegetables, herbs, and low-sodium broth. This allows for full control over sodium and sugar content. Always check nutrition labels and aim for products labeled “low sodium” or “no salt added” if canned options must be used.

3. Soda and Sugary Drinks

Sugary beverages like soda, sweetened iced teas, and energy drinks are particularly harmful for people with diabetes and kidney disease. They cause rapid spikes in blood glucose levels, which can worsen insulin resistance and accelerate kidney damage over time.

Additionally, many sodas contain high-fructose corn syrup, which is associated with inflammation and metabolic disturbances. For those with kidney issues, dark-colored sodas also contain phosphoric acid, which can elevate phosphorus levels in the blood, leading to weakened bones and heart problems. Moreover, these drinks offer no nutritional value and can contribute to weight gain, increasing the risk of cardiovascular complications.

People managing both diabetes and kidney disease should stick to water, herbal teas, or beverages sweetened with natural sugar alternatives like stevia. Reading beverage labels carefully and avoiding any drink with added sugar, caffeine, or phosphoric acid is essential for long-term health.

4. Chips, Crackers and Pretzels

Snack foods such as chips, crackers, and pretzels are often loaded with sodium and refined carbohydrates, making them a poor choice for anyone with kidney disease and diabetes. The high sodium content can contribute to fluid retention and high blood pressure, both of which are dangerous for kidney health.

On the diabetic front, these snacks are made from white flour or refined grains, which can lead to quick spikes in blood sugar levels. Many of these items also contain unhealthy fats and preservatives that increase inflammation in the body. Even “baked” or “low-fat” versions can be problematic due to their high carbohydrate and salt content.

Instead, opt for healthier snacks like unsalted nuts, air-popped popcorn, or raw vegetables with hummus. Reading labels for sodium content (aiming for less than 140 mg per serving) and avoiding anything with partially hydrogenated oils or high-fructose corn syrup is important.

5. Fast Food Meals

Fast food may be convenient, but it is one of the worst choices for individuals dealing with both diabetes and kidney disease. These meals are typically high in sodium, unhealthy fats, refined sugars, and preservatives. For someone with kidney disease, the sodium alone can trigger dangerous levels of fluid retention and blood pressure spikes.

Diabetics are at risk of experiencing rapid increases in blood sugar due to the high carbohydrate content of items like burgers, fries, and sodas. Additionally, fast food often contains phosphorus and potassium additives, which are harmful for weakened kidneys.

Even salads at fast food restaurants can be loaded with high-sodium dressings and processed meats. A better approach is to prepare meals at home using whole, fresh ingredients. If eating out is necessary, choose grilled options, request no added salt, and avoid sugary drinks and sides. Portion control and ingredient awareness are key.

6. Milk and Cheese

While dairy products are often recommended for bone health, they can be problematic for people with kidney disease and diabetes. Milk and cheese are high in phosphorus and potassium, which are minerals that damaged kidneys struggle to filter.

When levels of these minerals build up, they can lead to complications like bone disease and heart problems. In addition, full-fat milk and many cheese varieties contain saturated fats, which increase cholesterol and the risk of cardiovascular disease. For people with diabetes, some milk products also have natural sugars (lactose), which can affect blood sugar levels.

Choosing alternatives such as unsweetened almond milk or low-phosphorus plant-based dairy substitutes can be beneficial. It’s also helpful to limit cheese intake and choose low-fat or reduced-sodium options. Always consult a dietitian to determine how much dairy, if any, is safe for your specific health condition.

7. Pickled Foods

Pickled foods, such as cucumbers, kimchi, and olives, are often preserved in brine solutions that are extremely high in sodium. This excessive salt content poses a serious risk to people with kidney disease, as the kidneys struggle to excrete excess sodium.

This can result in fluid buildup, swelling, and hypertension. For individuals with diabetes, the added sodium and sometimes sugar in pickled foods can further complicate blood sugar and blood pressure management. Moreover, commercial pickled products can contain preservatives and artificial coloring agents that may not be kidney-friendly.

While fermentation does offer probiotic benefits, the drawbacks of high sodium often outweigh these advantages for people with kidney issues. If you enjoy pickled foods, consider making your own with minimal salt and vinegar. Always check the nutrition label and aim for varieties with less than 5% of the daily recommended sodium per serving.

8. White Bread and Pasta

Refined carbohydrates like white bread and pasta can quickly raise blood sugar levels, making them unsuitable for diabetics. These products are made from processed white flour that lacks fiber, causing a rapid release of glucose into the bloodstream.

For individuals with kidney disease, these foods often contain added phosphorus in the form of preservatives or dough conditioners. Overconsumption of phosphorus can lead to bone and heart issues in those with impaired kidney function. Whole grain alternatives are usually higher in fiber but may also be high in phosphorus and potassium, so they should be chosen with care.

For those managing both conditions, the best approach is to limit portion sizes and opt for lower-phosphorus, high-fiber grains such as rice noodles, quinoa, or specially formulated kidney-friendly bread. Consulting a dietitian for appropriate portion control and food types can help maintain a stable blood sugar level while protecting kidney function.

9. Canned Vegetables

Canned vegetables may appear to be a healthy choice, but they often contain high levels of sodium used as a preservative. For someone with kidney disease, this extra sodium can contribute to fluid retention, high blood pressure, and further strain on the kidneys.

In diabetes, managing sodium is also critical because high blood pressure increases the risk of cardiovascular complications. Additionally, some canned vegetables may include added sugar, especially in products like canned corn or peas. Another concern is the use of BPA (Bisphenol A) in can linings, which may affect hormonal balance and overall health.

To enjoy the benefits of vegetables without the downsides, choose fresh or frozen options instead. If canned vegetables are the only available option, always rinse them thoroughly under water to remove excess salt and look for labels that say “no salt added” or “low sodium.”

Bottom Line

For individuals living with both kidney disease and diabetes, nutrition is key to maintaining health and slowing the progression of both conditions. Avoiding high-sodium, high-sugar, and phosphorus-rich foods like processed meats, canned soups, and sugary drinks can make a significant difference.

Instead, opt for fresh, whole foods that are low in sodium and gentle on your kidneys. Small dietary changes can lead to big improvements in blood sugar control and kidney function. Always work with your healthcare provider or dietitian to create a personalized eating plan tailored to your needs and restrictions.

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