5 diet traps in chronic kidney disease

Some "healthy" foods are traps for kidney patients — the first one is in many kitchens every day.

1Salt substitutes and "low-sodium" soy sauce: sodium is often replaced with potassium chloride, which can raise blood potassium when kidneys are weak.
2Phosphate additives in processed food: watch for "phosphate" or "phosphoric acid" on the label — absorption is close to 100%, far higher than natural foods.
3Star fruit: contains a neurotoxin; people with reduced kidney function may get intractable hiccups, confusion or seizures, which can be fatal.
4High-sodium takeaway and pickled food: guidelines advise less than 2.3 g sodium a day (about 6 g salt).
5Protein powder on your own: non-dialysis CKD stages 3–5 are advised 0.55–0.6 g/kg/day; dialysis patients actually need more — ask a dietitian first.

Limits differ from person to person — follow the targets set by your doctor and renal dietitian. Try the free diet calculator on this site.

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Some "healthy" foods are traps for kidney patients — the first one is in many kitchens every day.

1. Salt substitutes and "low-sodium" soy sauce: sodium is often replaced with potassium chloride, which can raise blood potassium when kidneys are weak.
2. Phosphate additives in processed food: watch for "phosphate" or "phosphoric acid" on the label — absorption is close to 100%, far higher than natural foods.
3. Star fruit: contains a neurotoxin; people with reduced kidney function may get intractable hiccups, confusion or seizures, which can be fatal.
4. High-sodium takeaway and pickled food: guidelines advise less than 2.3 g sodium a day (about 6 g salt).
5. Protein powder on your own: non-dialysis CKD stages 3–5 are advised 0.55–0.6 g/kg/day; dialysis patients actually need more — ask a dietitian first.

Limits differ from person to person — follow the targets set by your doctor and renal dietitian. Try the free diet calculator on this site.

출처(카드의 각 항목과 대응): KDOQI Clinical Practice Guideline for Nutrition in CKD: 2020 Update — AJKD 2020;76(3S1):S1–S107; NKF — Potassium and Your CKD Diet (salt substitutes); Calvo MS, Uribarri J. Phosphorus additives — Am J Kidney Dis 2013;62:1216; Neto MM et al. Star fruit intoxication in uraemic patients — Nephrol Dial Transplant 2003;18:120
확인일: 2026-10-16

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https://beyondckd.com/ko/cards/five-diet-traps

60초 숏폼 영상 대본

장면과 내레이션. 세로 9:16, 자막은 하단 1/3에. 각 내레이션은 왼쪽 출처와 대응.

초	화면	내레이션
0–5	Hand holding salt substitute, big text "TRAP?"	Some foods that look healthy are actually traps for people with kidney disease.
5–16	Zoom on label: "potassium chloride"	One: salt substitutes and low-sodium soy sauce. They often swap sodium for potassium chloride. When kidneys are weak, potassium builds up.
16–27	Snack / ham label with "phosphate" circled	Two: phosphate additives in processed food. If you see "phosphate" on the label, be careful — nearly all of it is absorbed.
27–36	Star fruit photo + warning sign	Three: star fruit. It contains a neurotoxin. With reduced kidney function it can cause endless hiccups, confusion, even death.
36–46	Noodle soup, pickles, "<2.3 g sodium/day"	Four: high-sodium takeaway and pickles. Guidelines say less than 2.3 grams of sodium a day — about six grams of salt.
46–55	Protein powder tub + "ask a dietitian"	Five: buying protein powder on your own. Before dialysis protein should be lower; on dialysis it should be higher. Big difference — ask a dietitian.
55–60	Site logo + URL + QR	Want to check today's potassium, phosphorus and protein? The Beyond CKD diet calculator is free.

출처(카드의 각 항목과 대응)

확인일: 2026-10-16