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Potassium Restriction

Potassium requirements for children with renal failure

Potassium is very important to the body, but too much potassium in the blood can be harmful. When your child's kidneys do not work well, too much potassium can build up in the blood. Your child's body receives potassium from the foods he or she eats. If your child is having trouble maintaining a normal potassium level, it may be necessary to limit or avoid foods with high amounts of potassium.

What foods are high in potassium?

Most foods contain some amount of potassium. It is important to avoid or limit foods that are high in potassium if your child is on a low-potassium diet, or if your child's blood level of potassium is too high.

Some foods that are high in potassium include:

  • Bananas

  • Prunes

  • Oranges

  • Potatoes

  • Orange juice

  • Sweet potatoes

  • Grapefruit juice

  • Tomato sauce

  • Cantaloupe

Use the following list as a guide in your child's food choices. Your child's doctor or dietitian will let you know how much potassium your child can have each day.

Potassium content of foods

Most fruits, juices, and vegetables are high in potassium, especially when eaten raw. Be sure to monitor your child's portion sizes, especially if he or she is on a low-potassium diet.

Low (0 to 100 mg)

Medium (101 to 200 mg)

High (more than 201 mg)

Fruits

Applesauce

Blueberries

Cranberries

Cranberry juice

Grape juice

Lemon

Papaya nectar

Peach nectar

Canned pears

Pear nectar

Fruits

Apples

Apple juice

Apricot nectar

Blackberries

Cherries

Canned figs

Fruit cocktail

Grapes

Grapefruit

Lemon juice

Mango

Papaya

Peaches

Pineapple

Plums

Raisins (2 Tbsp.)

Raspberries

Rhubarb

Strawberries

Tangerines

Watermelon

Fruits

Apricots

Avocado

Bananas

Cantaloupe

Dates

Dried figs

Grapefruit juice

Honeydew melon

Kiwi

Nectarines

Oranges

Orange juice

Fresh pears

Prunes

Prune juice

Vegetables

Alfalfa sprouts

Bamboo shoots

Green or wax beans

Bean sprouts

Raw cabbage

Cucumber

Lettuce

Peppers

Water chestnuts

Watercress

Vegetables

Artichoke

Broccoli

Cooked cabbage

Carrots

Cauliflower

Celery

Greens (collard, mustard)

Corn

Eggplant

Mushrooms

Onions

Green peas

Radishes

Summer squash

Turnips (and greens)

Vegetables

Asparagus

Beets (and greens)

Baked beans

Dried beans and peas

Brussel sprouts

Butter beans

Okra

Potatoes

Hash browns

French fries and chips

Sweet potatoes (yams)

Pumpkin

Tomatoes

Tomato products

Tomato juice

Vegetable juice (V8)

Spinach

 

 

Miscellaneous

100 percent bran cereals

Molasses and chocolate

Salt substitutes (NoSalt)

Lite salt (Salt Sense)

Buttermilk

Nuts

(Portion sizes: 1/2 cup)

Some potassium can be removed from potatoes and other vegetables by following the instructions below:

  1. Peel and dice the vegetable.

  2. Soak the vegetable in hot water for two hours, or in cold water overnight.

  3. Drain and rinse the vegetable thoroughly in warm water.

  4. Cover the vegetable with fresh water, boil for five minutes, and simmer until done.

  5. Drain and serve (boiled, fried, or mashed) or freeze for later.