oxalate foods

A Low Oxalate Vegetarian Diet

When physicians suggest diets for patients struggling with calcium-oxalate kidney stones, a low oxalate diet is often recommended. However, for vegetarians, this can pose a problem for their lifestyle, as some of the items with the highest levels of oxalate are vegetables or grains, and therefore make such a diet difficult to balance while still staying healthy with other nutrients. Hope is not lost for vegetarians though, and the following is a collection of some tips for a low oxalate diet that doesn’t require you to bite into the forbidden meats.

First, the oxalate content of plants can change depending on the way they’re planted and grown, and can also have their oxalate reduced by boiling or steaming the vegetables, especially the leaves of leafy greens, and then discarding the water. So it’s recommended that if you are going to eat greens with lots of oxalate, to prepare them in this fashion to decrease the amount of oxalate you’re consuming. With that in mind, the list below will describe what to avoid for certain kinds of foods, and what to eat instead to keep a low oxalate diet.




All-bran cereals, and most cereal advertising wheat or grains. Frosted mini-wheats, and most fruit cereals.

Instead Eat:

Eggs, Coconut flour muffins or pancakes, yogurt with mixed fruit (no granola).



Beans, beets, raw carrots, okra, rhubarb, parsnip, spinach (raw or cooked), tomato sauce, turnips, or yams.

Instead Eat:

Broccoli, cabbage, cauliflower, corn, cucumber, lettuce, mushroom, onions, pickles, radish, scallions, green pepper, or zucchini.

In small amounts, eating asparagus, cooked carrots, brussel sprouts, celery, and string beans are acceptable.



Almost all nuts and seeds except for flax seed, peanut butter, desserts such as brownies, cake, chocolate syrup and fudge, and avoid all potato chips.

Instead Eat:

Fig bars, graham crackers, saltines, Triscuits, wheat thins with reduced fat, apple butter, and Ritz crackers. For dessert, jello, Popsicles, sherbet, and vanilla pudding are good alternatives.



Hot chocolate, lemonade, brewed black tea, or V8 juices.

Instead Drink:

Other fruit juices such as apple juice, orange juice, or pineapple juice. In reasonable servings, these are fine. Though slightly controversial, it has been recently argued that coffee has a relatively low oxalate content, and is safe to drink. The most important thing in a low oxalate diet however is to drink lots of water.



Kiwis, dates, raspberries, star fruit, canned and dried pineapple, and dried figs.

Instead Eat:

Apples, grapes, lemons, peaches, plums, watermelons, fresh pineapple, strawberries, bananas, pears, or cherries.



Tofu, veggie burgers, lasagna, spaghetti, potatoes, sweet potatoes, and pasta.

Instead Eat:

White rice, macaroni & cheese, popcorn, salads, any of the low oxalate vegetable mentioned, Santa Fe bean salad with black-eyed peas instead of black beans, rice and peas, and eggs in meals are all just a few options.

While it seems like a difficult hurdle to pass, a low oxalate vegetarian diet certainly is not impossible, and there are people willing to help. While most of the items listed were common foods, there are still more foods that have both high and low oxalate contents. So be sure to do some research and ask your doctor for a list of high oxalate foods, and take some time to look into more possible meals yourself.


  1. Harvard T.H. Chan School of Public Health Nutrition Department Retrieved from the URL: https://regepi.bwh.harvard.edu/health/Oxalate/files

  2. Norris, Jack, Oxalate, December 2013. Retrieved from the URL: http://veganhealth.org/articles/oxalate

  3. Heidi, Low Oxalate Meal Plans for the Low Oxalate Diet, Low Oxalate Info, October 12, 2012. Retrieved from the URL: http://lowoxalateinfo.com/low-oxalate-meal-plans-for-the-low-oxalate-diet/

A New Direction in Healthier Living

While Captozyme is currently working on developing ways to decrease the prevalence and inconvenience of calcium oxalate kidney stones, there are simple strategies or habits that anyone can do to decrease the risk of forming a kidney stone. Although many do not even think about the dangers of developing kidney stones, they can be an extremely painful experience, and are worth trying to avoid. There is also an increased risk for those with a family history of kidney stones, which can be decreased through simple changes in one’s lifestyle.

So what can you do to help prevent kidney stones in general? One extremely simple step is to increase liquid consumption. The type of liquid matters, as the oxalate in beverages such as sweet tea lead to an increase in risk, while beverages such as coffee decrease the risk of stones. It is recommended to drink anywhere from two and half to three liters of liquid per day, mostly consisting of water. Also, maintaining a normal intake of calcium in one’s diet helps, along with the decrease of salt, animal-protein, and foods filled with oxalate. The recommended amount of oxalate in foods that should be consumed in order to reduce oxalate kidney stones is forty to fifty milligrams of oxalate a day. Some vegetables that are low in oxalate are as follows; peas, mushrooms, cucumbers, radishes, and cabbage.

In summary, it is recommended to exercise and keep a healthy diet that contains the suggested daily intake of calcium and liquids, while being low in oxalate, salt and animal-protein. There are also medical supplements being developed by companies such as Captozyme that are working to ensure that you no longer have to fear the pain of a kidney stone.

A New Step in Health

In our modern world, we are almost constantly bombarded with different ideas and discoveries in health products, and theories on how to become healthier. We are finally discovering the causes for many of our health problems that we have faced for years, which has required us to create products and solutions to overcome these problems and improve our lives. While we might have addressed plenty of health related issues, there are still so many we have yet to develop fully. So what is the next step? Captozyme believes that there is more we can do in products and procedures to help improve our health and therefore humankind, and is working to achieve exactly that. Captozyme is a researching company that focuses primarily on anti-nutrients such as oxalate, and developing enzyme products for people with hyperoxaluria and kidney stones.

Hyperoxaluria means that a person has increased urine oxalate, which can cause formation of calcium oxalate, the primary component of most kidney stones. These oxalates can be found in a variety of products that we commonly ingest on a daily basis, and therefore are often unknowingly dangerous to those with hyperoxaluria. At Captozyme we strive to develop ways to administer more of our enzymes in order to decrease the build-up of oxalate, and as a result, assist kidney stone formers in leading healthier lives.

12th Annual BioFlorida Celebration of Technology

Thursday, May 7th 2015                                                                                          



Interested in hearing about our ongoing and upcoming projects?  

Join us along with many other vendors in attending the 12th annual BioFlorida Celebration of Biotechnology at Progress Corporate Park in Alachua, FL.

           Location:  RTI Surgical, Alachua, FL

Event Time: 9:30am-1:00pm



Partner Visit, Wuhan, China


January, 2015

Partner Visit, Wuhan, China

Captozyme's management team will visit Wuhan “Optics Valley” to further explore business relationships. “Optics Valley” or Donghu New Technology Development Zone is one of the Technology Development Zones in China, located in the east of Wuchang District in Wuhan.  In 2011 it was designated as a New Technology Development Zone for Optical Technology, and since then been self-labeled as the “Optics Valley” of China.