For CKD patients, low-sodium white bread or soft wheat bread are often best for limiting phosphorus and potassium, while whole grain/wheat is great for fiber but needs careful selection for lower minerals and no phosphate additives, emphasizing homemade or low-sodium versions and always checking labels for hidden salts and phosphates.
I recommend whole grain, whole wheat or multigrain bread for people with kidney disease. Be careful to check the sodium in whatever bread you buy. Bread is a surprising source of salt! Historically, white bread was recommended because it has less phosphorus in it.
Low potassium bread (best choice)
Kidney-friendly sandwiches made with your choice of wholemeal bread, pittas, English muffins, rolls or wraps
Diabetes and high blood pressure are the top culprits damaging kidneys most, as they harm the delicate filtering blood vessels, leading to chronic kidney disease (CKD) and failure; other major factors include smoking, obesity, dehydration, poor diet (high sugar/salt/red meat), certain medications (NSAIDs), lack of sleep, and genetic conditions. These factors create a cycle where damaged kidneys worsen blood pressure, further damaging them.
Though homemade treats are encouraged whenever possible, there are also good choices at the nearest supermarket or corner shop. When reaching for a pack of biscuits, go for a plain digestive, ginger nut, shortbread or oat biscuit.
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What can I do to keep my kidneys healthy?
Some starchy foods such as bread, rice and pasta are low in potassium and can be eaten freely. Others such as potato, sweet potato, yam are high in potassium and need to be limited.
For most people, eating wheat bread that is labeled as “whole wheat” daily can be a healthy habit, provided you're not sensitive to gluten or wheat. Whole wheat bread is packed with nutrients like fiber, magnesium, and B vitamins, which support energy production, gut health, and overall well-being.
Another sign of hyperkalemia to look out for is tingling or numbness in your hands, feet, or around your mouth. Too much potassium can affect your nerves, leading to a sensation called paresthesia, which feels like pins and needles. You shouldn't ignore any unexplained tingling or numbness in any part of your body.
Difficulty breathing. Extreme muscle weakness. Severe abdominal pain. Heart attack symptoms, including chest pain or a weak pulse.
How to stop pins and needles in hands and fingers. If you experience pins and needles in your hand, try stretching or shaking your arms and hands to improve blood flow and relieve pressure on the nerves. You could also try massaging the affected area or heating it with a warm towel, heating pad, or warm bath.
Currently, no home fingerprick collection potassium tests are available. Although potassium is one of the biomarkers offered by the Kitby Vitall kidney function home test,34 it requires a clinic visit (at additional cost) to obtain the blood.
Kidney-friendly snacks at the grocery store
Side dish recipes
Pasta (spaghetti, noodles) can make an excellent starter or main course, however be aware of what the sauces are made from. Creamy and cheesy sauces such as Carbonara tend to be high in fat, so try not to over-indulge in them.
Refined white bread (made from wheat flour) is generally low in phosphorus and potassium. The more bran and whole grains in bread, the greater the potassium and phosphorus content (and higher fiber content).
Choose 100% whole-grain bread and make sure "whole-grain" is listed first in the ingredients. Limit bread made with "enriched flour." Look for bread with at least 2 to 3 grams of fiber per slice. Check the ingredients list and avoid breads with added sugar.
Whole wheat bread
The daily consumption of this delicious bread depends on your body goals. So if you're trying to maintain your current weight, you can consume up to 12 slices of whole wheat bread per day.
Avoid black-eyed peas, dried beans, cooked greens, spinach, yams, and sweet potato pie. All are high in potassium. Best choices? Fried chicken (no skin), corn, string beans or okra, wilted lettuce, corn bread or dinner rolls.