Low Oxalate (1 cup raw strawberries = 4 mg oxalate) Strawberries, blueberries, blackberries and cherries are all wonderful low oxalate fruits for a healthy kidney stone diet. Raspberries are the one berry exception, coming in at 48mg oxalate per cup. Strawberries make a great addition to yogurt in the morning.
Many fruits are considered low-oxalate, meaning they contain less than 2 milligrams per serving. These include bananas, cherries, grapefruit, grapes, mangoes, melons, green and yellow plums and nectarines. Canned fruits including peaches and pears and dried fruits such as raisins are also low in oxalate.
The only berry that is very high in oxalate is raspberries (look at the list). On the other hand, people do not realize avocado, oranges, dates, and even grapefruit and kiwi are very high and need caution. This doesn't mean you can never have these healthy treats.
Some examples of foods that are highest in oxalates include green leafy vegetables, soy, almonds, potatoes, tea, rhubarb, cereal grains and beets. Oxalates are also naturally created in the human body as a waste product.
You need to eat calcium so that it can bind with oxalate in the stomach and intestines before it moves to the kidneys. Eating foods with calcium is a good way for oxalates to leave the body and not form stones. The best way to get calcium into your body is through the foods you eat.
Because oxalates are water soluble, they can be reduced by blanching, boiling, or steaming with the liquid discarded. Fermentation reduces oxalates. Cooking in milk or macerating in whey can also mitigate oxalate exposure. Sprouting can help too.
A whole avocado has around 19 milligrams of oxalates, which absolutely categorizes it as a high-oxalate food. However, a single serving of avocado is 1/4 of the fruit.
Low oxalate protein and dairy include eggs, meat, poultry, fish, yogurt, cheese, milk, and butter. In addition, coffee, water, and fruit juice are considered low oxalate.
People who must follow a low oxalate diet may want to avoid eating blueberries. The oxalates in blueberries seem to block the absorption of calcium to some extent. Even though it is not dangerous to eat the two foods together, you might not want to count all of the calcium consumed along with blueberries.
Some plant foods extremely high in oxalates include, but not limited to: Leafy greens – spinach, Swiss chard, kale, collard greens, celery, parsley, endive, beetroot greens, dandelion greens, and turnip greens. Root crops – beets, carrots, potatoes, sweet potatoes, and parsnips.
This study confirms that the oxalate contents of ready to eat green and gold kiwifruit are low and unlikely to significantly increase the daily intake of oxalates in the diet.
As chocolate is considered as a high oxalate food (Williams and Wilson, 1990, Massey et al., 1993, Noonan and Savage, 1999, Mendonça et al., 2003), The Oxalosis & Hyperoxaluria Foundation (OHF, 2004) recommends that affected persons should avoid eating chocolate.
Some foods that are relatively high in oxalate include broccoli, spinach, kale, okra, parsley, celery, Brussels sprouts, okra, dark leafy greens, and a not-so-green vegetable which leaves many surprised: carrots.
Some examples of foods that have high levels of oxalate include peanuts, rhubarb, spinach, beets, Swiss chard, chocolate and sweet potatoes. Limiting intake of these foods may be beneficial for people who form calcium oxalate stones which is the leading type of kidney stone.
Milk, hard cheese, yogurt, ice cream, sour cream, cream cheese, cottage cheese, buttermilk, custard and pudding do not contain oxalate.
The main sources of oxalate in diets were regular tea and coffee (80-85%). Only 15-20% of oxalate was derived from other plant foods.
Oxalate nephropathy is commonly caused by ethylene glycol, vitamin C, and foods like star fruit that contain a lot of oxalate. Peanuts also have high oxalate contents.
The ingestion of the lemon juice seems to dissipate a effect of great quantity of citrates which in turn increases the excretion of oxalates. The presence of these two elements simultaneously: citrate and oxalate compensate for their opposite effect.
Conclusions: The results show that magnesium administration decreases the oxalate absorption, when magnesium is taken together with oxalate. However, magnesium administration does not decrease the oxalate absorption, when magnesium and oxalate intake differ by 12 h.
Moreover, urinary oxalate excretion is not affected by lemon juice, but is increased by orange juice supplementation.
Although sweet potatoes are considered a nutritious food, they are categorized as very high in oxalates and unfit for a person on a low-oxalate diet. Foods that contain less than 2 milligrams of oxalate per serving are considered low, according to the University of Pittsburgh Medical Center.
We found individuals with daily consumption of vinegar compared to those without have a higher citrate and a lower calcium excretion in urine, two critical molecules for calcium oxalate (CaOx) kidney stone in humans.