If you have kidney or liver problems, you may need to learn how to reduce your protein (amino acid) intake to prevent toxic substances like nitrogen, ammonia, or urea from accumulating in the body, which can affect your overall health. By reducing the amount of protein consumed, the workload on your kidneys and liver will decrease, removing unnecessary stress on your body. A low-protein diet should only be followed under the guidance and supervision of a doctor.
Steps
Identify the Sources of Protein in Your Diet

Understand why you may need to reduce protein intake. If you have kidney or liver issues, such as being diagnosed with chronic kidney disease, you may be advised to reduce your protein intake. As food is processed in the body, urea waste is produced. In the case of kidney problems, urea may not be filtered out properly. The accumulation of this waste can be very harmful to your health.
- By lowering your protein intake, you are also reducing the workload on your kidneys.
- However, it is important to remember that protein is a crucial part of your diet, and you should only adopt a low-protein diet when advised and monitored by a healthcare professional.

Identify High-Quality Protein Sources. The first step to reducing protein intake is to clearly understand where and how protein enters your body. We consume two types of protein: high-quality and low-quality protein. Animal proteins are high-quality. Getting enough high-quality protein is crucial for maintaining a healthy body. This type of protein typically produces less waste than low-quality proteins due to its balanced amino acid profile.
- Chicken, turkey, fish, red meat, eggs, and pork are all examples of high-quality protein foods.
- Dairy products also contain high-quality protein but are also rich in phosphorus. Therefore, you may need to limit your intake of these items.

Recognize Low-Quality Protein Sources. Plant-based proteins are considered low-quality due to their lower essential amino acid content compared to high-quality proteins. Some foods containing this type of protein include cereals, bread, nuts, pasta, rice, noodles, and dry beans.
- Sometimes, high-quality, amino acid-rich protein is referred to as complete protein, while low-quality protein is known as incomplete protein.
- Always check food packaging to understand the protein content of the products you’re consuming.

Evaluate Your Daily Diet. Once you identify the main sources of protein and their quality, you can begin analyzing your diet to determine where and how you’re getting protein. If kidney or liver problems require you to reduce protein, don't forget to consult with a nutritionist or doctor to develop a balanced and appropriate diet. You can also use online tools to get an initial idea.
- Don't eliminate protein entirely from your diet. The amount you need to cut back on will depend on your specific situation.
- The amount of protein required will change over time. Therefore, it’s essential to work closely with your doctor to ensure your diet is suitable and supports your health condition.
- Your diet must still meet your daily nutritional needs, so reducing protein should not be done arbitrarily.

Know Your Recommended Intake. When diagnosed with liver or kidney issues, the amount of protein you should consume will be precisely determined by your doctor and nutritionist. This amount may vary from case to case, but generally, with kidney problems, you may be advised to have just 200 ml of milk along with a portion of protein each day. This could be equivalent to 25 g of meat (including chicken and turkey), 40 g of fish, 1 egg, 25 g of cheese, 25 g of soy sauce, or 75 g of tofu, lentils, or green beans.
- For adult men (ages 19-50), the recommended intake for those without kidney disease is 55.5 g per day.
- For women in the same age group, the recommended intake is 45 g.
- Men aged 11-14 generally need 42 g, while women in this age group need slightly less, around 41 g.
- For males aged 15-18, the recommended intake is 55 g per day, and females in this age range should consume 45 g.
Reduce Protein in Your Diet

Gradually Reduce Your Protein Intake. You can reduce your protein intake by making small changes in how you prepare your meals. For example, when making a chicken sandwich, instead of using a large portion of chicken, opt for a few thin slices. Add more lettuce, tomato, and salad to balance the reduced meat, ensuring that you still have a tasty and filling meal.
- Adding vegetables to eggs or ground meat can significantly lower the protein content of your meal or snack.
- You can increase the volume of soups by adding low-protein ingredients like rice. For creamy soups, reduce the amount of milk and replace it with lower-protein alternatives.
- While focusing on low-protein foods is a good way to reduce your intake, you still need to ensure a balanced diet.

Reduce High-Quality Protein Intake. To lower your intake of high-quality protein, you will need to cut back on meat. This doesn't mean eliminating meat entirely, but rather restructuring your meals so that meat is no longer the focal point, instead serving as a small side dish. You could also try meatless days during the week.
- Consider adopting a vegetarian diet, as many plant-based protein sources have much lower protein content compared to animal sources.
- Always replace calories from meat with other foods. For example, eat more vegetables and grains to compensate for the reduced meat. Use whole grains and vegetables to fill you up, and choose healthy fats that are low in protein (like coconut oil, butter, etc.).
- If you enjoy cheese, try using small amounts of strong-flavored cheese to satisfy your taste buds with a smaller portion.

Adjust Your Cooking Recipes. You can create new versions of your favorite recipes to reduce their protein content. For instance, you can make a lower-protein version of chicken salad. A typical recipe includes 3 cups of cooked, chopped chicken, 1/4 cup of celery, 1 cup of red apples, 1/4 cup of walnuts, and 3 tablespoons of mayonnaise.
- You can adjust the recipe by changing the ingredient ratios.
- Reduce the chicken to 1 1/2 cups and compensate by increasing the celery to 1 cup.

If Needed, Add Calorie-Boosting Ingredients to Your Diet. Reducing protein intake may put you at risk for not getting enough calories. When planning your diet with your doctor or nutritionist, they will take this into account and may suggest adding some calorie-boosting foods. These could include healthy fats like olive oil, salad dressings, or sunflower oil.
- Avoid adding too many carbohydrates to your meals to boost calories. Healthy fats are an excellent source of extra calories and offer many health benefits.
- Honey, jam, and other sweeteners can be added to food and drinks to increase calorie intake.
- If you have diabetes, make sure to consult your doctor before adding these sugary foods to your diet.

Avoid High-Sodium Foods. High sodium levels can make it difficult for the body to regulate blood pressure and fluid balance. This is especially important if you have liver or kidney problems. Processed foods often contain high amounts of salt, leading to higher sodium levels. Fresh fruits and vegetables are a better option. If you have any doubts, seek advice from your doctor or nutritionist for further clarification.

Maintain a Balanced and Healthy Diet. A low-calorie diet should be specifically tailored to your health condition by a professional. Following this diet is crucial as it aims to balance the need for reducing high-quality protein while still providing adequate nutrients, minerals, and calories your body requires.
- If protein reduction is necessary, your doctor may prescribe supplements to meet all of your nutritional needs.

Keep Hydrated. Unless advised otherwise by your doctor, continue drinking plenty of water throughout the day. This ensures your body stays hydrated and helps curb unnecessary snacking. Often, we confuse thirst for hunger, which leads us to eat when we actually need water.
- Reducing snacks makes it easier to cut down on protein intake. Generally, it is recommended to drink 1-2 liters of water daily.
Tips
- Supplement any missing minerals due to cutting back or eliminating protein from your diet. These include amino acids, vitamin B1, vitamin B2, vitamin B3, and iron.
Warnings
- A low-protein diet should only be followed under the guidance of a doctor or nutritionist.
