Diet low in Oxalate may help prevent Kidney Stones

Kidney stones are a well-known disorder of the urinary tract, and they are comprised of a hard, stone-like material that forms on the kidney walls due to a buildup of minerals in urine. The majority of kidney stones are so tiny that they traverse the urinary system without causing pain. However, a large enough stone can cause urinary blockage. This is very painful, and requires some kind of treatment or surgery.

In the United States, about 1 million people get kidney stones annually. Stones usually affect people between the ages of 20 and 40, and men are affected more often than women. A family history of kidney stones also increases risk.

Some people have kidney stones made from calcium oxalate (OX-uh-layt). For these individuals, cutting back on high-oxalate foods and salt may help prevent the formation of kidney stones.  Oxalate is found in many foods., and if you are trying to maintain a low oxalate diet, you should limit your intake to 40 to 50 mg each day.  It’s also important to  drink plenty of fluids – 8 to 13 cups each day. Your body may turn extra vitamin C into oxalate. Avoid high doses of vitamin C supplements (more than 2,000 mg of vitamin C per day)

The following charts may help you avoid high-oxalate foods. Food and drink serving sizes are 3.5 ounces (100 grams), unless otherwise noted.

Avoid these High-oxolate Foods and Drinks

High-oxolate foods have more than 10 mg of oxalate per serving

Drinks

  • Dark or “robust” beer
  • Black tea
  • Chocolate milk
  • Cocoa
  • Instant coffee
  • Hot chocolate
  • Juice made from high oxalate fruits (see below for high oxalate fruits)
  • Ovaltine
  • Soy drinks
Dairy

  • Chocolate milk
  • Soy cheese
  • Soy milk
  • Soy yogurt

 

 

 

 

Fats, Nuts, Seeds

  • Nuts
  • Nut butters
  • Sesame seeds
  • Tahini
  • Soy nuts
Meat

  • None

 

 

Starch

  • Amaranth
  • Buckwheat
  • Cereal (bran or high fiber)
  • Crisp bread (rye or wheat)
  • Fruit cake
  • Grits
  • Pretzels
  • Taro
  • Wheat bran
  • Wheat germ
  • Whole wheat bread
  • Whole wheat flour

 

 

 

Fruit

  • Blackberries
  • Blueberries
  • Carambola
  • Concord grapes
  • Currents
  • Dewberries
  • Elderberries
  • Figs
  • Fruit cocktail
  • Gooseberry
  • Kiwis
  • Lemon peel
  • Lime peel
  • Orange peel
  • Raspberries
  • Rhubarb
  • Canned strawberries
  • Tamarillo
  • Tangerines
Vegetables

  • Beans (baked, green, dried, kidney)
  • Beets
  • Beet greens
  • Beet root
  • Carrots
  • Celery
  • Chicory
  • Collards
  • Dandelion greens
  • Eggplant
  • Escarole
  • Kale
Vegetables continued

  • Leeks
  • Okra
  • Olives
  • Parsley
  • Peppers (chili and green)
  • Pokeweed
  • Potatoes (baked, boiled, fried)
  • Rutabaga
  • Spinach
  • Summer squash
  • Sweet potato
  • Swiss chard
  • Zucchini

 

Condiments

  • Black pepper (more than 1 tsp.)
  • Marmalade
  • Soy sauce
Miscellaneous

  • Chocolate
  • Parsley

 

Limit these Moderate-oxalate Foods and Drinks

You should have no more than two or three servings of these foods per day. Moderate-oxalate foods have 2 to10 mg of oxalate per serving

 Drinks
  • Draft beer
  • Carrot juice
  • Brewed coffee
  • Cranberry juice
  • Grape juice
  • Guinness draft beer
  • Matetea tea
  • Orange juice
  • Rosehip tea
  • Tomato juice
  • Twining’s black currant tea
Dairy
  •  Yogurt
Fats, nuts, seeds
  • Flaxseed
  • Sunflower seeds
Fruit
  • Apples
  • Applesauce
  • Apricots
  • Coconut
  • Cranberries
  • Mandarin orange
  • Orange
  • Fresh peaches
  • Fresh pear
  • Pineapples
  • Purple and Damson plums
  • Prunes
  • Fresh strawberries
Meat
  • Liver
  • Sardines
Starch
  • Bagels
  • Brown rice
  • Cornmeal
  • Corn starch
  • Corn tortilla
  • Fig cookie
  • Oatmeal
  • Ravioli (no sauce)
  • Spaghetti in red sauce
  • Sponge cake
  • Cinnamon Pop tart
  • White bread
Vegetables
  • Artichoke
  • Asparagus
  • Broccoli
  • Brussel sprouts
  • Carrots (canned)
  • Corn
  • Fennel
  • Lettuce
  • lima beans
  • Mustard greens
  • Onions
  • Parsnip
  • Canned peas
  • Tomato
  • Tomato soup
  • Turnips
  • Vegetable soup
  • Watercress
Miscellaneous
  • Ginger
  • Malt
  • Potato chips (less than 3.5 oz.)
  • Strawberry jam/preserves
  • Thyme

 

Enjoy these Low-oxalate Foods and Drinks

Eat as much of these low-oxalate foods as you like. Low-oxalate foods have less than 2 mg of oxalate per serving.

 Drinks
  • Apple cider
  • Apple juice
  • Apricot nectar
  • Bottled beer
  • Buttermilk
  • Cherry juice
  • Cola
  • Grapefruit juice
  • Green tea
  • Herbal teas (see below)
  • Lemonade
  • Lemon juice
  • Limeade
  • Lime juice
  • Milk
  • Oolong tea
  • Pineapple juice
  • Wine
Herbal Teas
  • Celestial Seasonings (Sleepytime, Peppermint, Wild Forest Blackberry, Mandarin Orange Spice, Cinnamon, Apple Spice)
  • R.C. Bigelow (Cranberry Apple, Red Raspberry, I Love Lemon, Orange and Spic, Mint Medley, Sweet Dreams)
  • Thomas J. Lipton (Gentle Orange, Lemon Soothe, Chamomile flowers, Stinging Nettle)
Dairy
  • Cheese
  • Buttermilk
  • Milk
Fats, nuts, seeds
  • Butter
  • Margarine
  • Mayonnaise
  • Salad dressing
  • Vegetable oil
Fruit
  • Avocados
  • Bananas
  • Cherries (bing and sour)
  • Grapefruit
  • Grapes (green and red)
  • Huckleberries
  • Kumquat
  • Litchi/Lychee
  • Mangoes
  • Melons
  • Nectarines
  • Papaya
  • Passion fruit
  • Canned peaches
  • Canned pears
  • Green and yellow plums
  • Raisins (1/4 cup)
Meat
  • Bacon
  • Beef
  • Corned beef
  • Fish (except sardines)
  • Ham
  • Lamb
  • Lean meats
  • Pork
  • Poultry
  • Shellfish
Starches
  • Barley
  • Cereals (corn or rice)
  • Cheerios
  • Chicken noodle soup
  • Egg noodles
  • English muffin
  • Graham crackers
  • Macaroni
  • Pasta (plain)
  • White rice
  • Wild rice
Vegetables
  • Cabbage
  • Cauliflower
  • Chives
  • Cucumber
  • Endive
  • Kohlrabi
  • Mushrooms
  • Peas
  • Radishes
  • Water chestnut
Condiments
  • Basil
  • Cinnamon
  • Corn syrup
  • Dijon mustard
  • Dill
  • Honey
  • Imitation vanilla extract
  • Jelly made from low oxalate fruits
  • Ketchup (1 Tbsp.)
  • Maple syrup
  • Nutmeg
  • Oregano
  • Peppermint
  • Sage
  • Sugar
  • Vinegar
  • White pepper
Miscellaneous
  • Gelatin (unflavored)
  • Hard candy
  • Jell-O
  • Lemon balm
  • Lemon juice
  • Lime juice

Prevent Calcium Oxalate Kidney Stones

Dr. Omar Benetiz, M.D., discusses simple ways you can prevent calcium oxalate kidney stones, hydration being one of the keys to combat this particular type of oxalate stone. The reduction of calcium itself isn’t necessarily the best idea according to the doctor, especially for women with osteoporosis that require calcium supplementation.