Kidney Stone Diet

Kidney Stone Diet

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Protein Sources for Vegan and Vegetarian Kidney Stone Formers

by Jill Harris, LPN, CHC on Feb 20, 2021

This article is for you, my dear vegan and vegetarian stone formers. I know you’ve been using soy, tofu, beans, and nuts to meet your daily protein goals. In the meantime, however, you unknowingly overate some of the highest oxalate foods, which in turn led to your kidney stone(s).

I can hear many of you right now, “yeah, and boy, was I surprised that my healthy diet led to the worst pain of my life.” These words are uttered daily in my busy practice.

I can’t tell you how many of my students and patients had to change their diet due to another medical condition and wound up making a kidney stone. The problem wasn’t that the healthy food did it to you; it was the quantity of those certain foods(think almonds and spinach) along with not getting enough calcium. The combination of really high oxalate foods and not getting your daily calcium needs met is a kidney stone disaster.

So now what? Do you have to start eating meat again to get your protein needs met? Many doctors will tell patients this, but you certainly don’t have to give up your veggie lifestyle.

Here’s a good article by Mayo Clinic regarding protein and how much we need per day. They say to spread out 15-25 grams of protein per meal. The article also states that “studies show higher intakes (more than 40g/meal) are no more beneficial than the recommended 15-25g at one time.”

The diet industry will have you believe we need much more, but they want to sell you lots of expensive bars and shakes. Don’t feed (literally) into the bull doo. Read the article so you can see what you need for your daily protein. I work out with weights five days a week and do NOT overeat protein, and I have just fine mid-age lady muscles!

Below you will find a list of foods that contain protein. I picked them also based upon lower sugar, oxalate, and sodium levels which are crucial elements of the kidney stone diet. For your convenience, I have also included the oxalate level for each food, if known.

Lower Oxalate Non-Meat Protein Sources (in no particular order)

  • Eggs—protein per egg: 6g/oxalate: 0mg
  • Milk (low fat, ultra-processed)—protein per 1 cup: 11g/oxalate: 0mg
  • Swiss Cheese—protein per 1 slice: ~5g/oxalate: 0mg
  • Cottage Cheese (lower sodium)—protein per 1/2 cup: ~12g/oxalate: 0mg
  • Mozzarella Cheese—protein per 1.5 ounces: 10g/oxalate: 0mg
  • Greek Yogurt—protein per 6 ounces: ~15g/oxalate: 0mg
  • Green peas—protein per cooked cup: 9g/oxalate: 0mg
  • Quinoa*—protein per cup: ~9g/see note below
  • Ezekiel Bread* (low sodium)—protein per two slices: 10g/see note below
  • Oats—protein per 1/2 cup: ~6g/oxalate-0mg
  • Sunflower Seeds—protein per 1/2 cup: ~15g/oxalate: 6mg
  • Pistachios—protein per 1/2 cup: 12g/oxalate: 30mg
  • Broccoli—protein per 1 cup chopped: ~2.8g/oxalate: 12mg
  • Cauliflower—protein per 1 cup: ~2g/oxalate: 2mg
  • Black Beans*—protein per 1/2 cup: 8g/see note below
  • Fava Beans—protein per 1 cup: 13g/oxalate: 40mg
  • Mung Beans—protein per 1 cup: 49g/oxalate: 16mg
  • Red Kidney Beans—protein per 1 cup: 43g/oxalate: 30mg

For all foods with an asterisk, take note… 

I have no oxalate values for the items that contain an asterisk. Not knowing the oxalate values may scare you a bit, but it’s not that you had a cup of black beans one day a week that caused that stone; it’s that you had bean bowls (with two cups/bowl) day after day without getting your calcium needs met that’s caused the problem.

What we do each day and the quantity we choose to do it in is what counts. I am not sure about the asterisked foods’ oxalate level, so have those foods once or twice a week in standard portion sizes and get your recommended daily calcium requirement. For less oxalate, eat a smaller portion size. This advice has not backfired on me in 21 years, so I stand by it.

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About the Author Jill Harris, LPN, CHC

Jill Harris is a Licensed Practical Nurse (LPN) who specializes in kidney stone prevention. Her goal is to teach you what you need to know and, more importantly, how to put that knowledge to work so you can stop forming stones. For good.

Comments

  1. Donna

    March 31, 2021 at 7:25 pm

    Unfortunately I have just had a kidney stone. I am new to all of this information. What should my calcium be each day? Can I take a supplement? I’m not sure if I eat enough foods each day to fulfill my calcium quota.
    Thank you for all of this information.

    Reply
    • Jill Harris

      April 12, 2021 at 10:08 pm

      Donna,
      Go to my blog on this site and read what the kidney stone diet is. That will be a good starting point for you. I have many articles on the blog to answer everything. Also going to the start page on this site will get you there too.
      J

      Reply
  2. Karen Spencer Benson

    August 15, 2021 at 2:52 pm

    Jill, can you please check your number for the protein in red kidney beans. What I am seeing is 12 to 14 g of protein per one cup in all my sources.

    Reply
    • Jill Harris, LPN, CHC

      August 20, 2021 at 9:27 am

      USDA food data central

      Reply
  3. Aubrey

    March 26, 2022 at 8:28 am

    Can you recommend some good dairy free low sugar and low salt protein powders to supplement? It feels really hard to find good ones that aren’t packed full of lactose/dairy, sugar, and or salt.

    Also, do eggs count toward the daily meat intake?

    Thank you for all your educational resources. It’s given me my life back!

    Reply
    • Jill Harris, LPN, CHC

      April 3, 2022 at 3:40 pm

      Hey Aubrey,
      I use healthy and fit egg white powder. Vanilla. It does have higher sodium, but I make room for it in my day to stay compliant to the KSD.
      j

      Reply
      • Aubrey

        April 9, 2022 at 8:14 am

        Thank you for the recommendation!

        Do eggs count toward the daily meat intake limit?

        Reply
        • Jill Harris, LPN, CHC

          April 9, 2022 at 2:34 pm

          Hi Aubrey,
          They do not. This doesn’t mean we want you to overeat eggs. The protein limit is just for meat. You can add other sources of protein.
          j

          Reply
          • Aubrey

            April 9, 2022 at 5:58 pm

            Thank you so much for your guidance!

          • Jill Harris, LPN, CHC

            April 10, 2022 at 3:40 pm

            Of course, Aubrey!

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