Phosphorus levels in foods: Two measures?

[Lydia--(Rosie & Basil) GA]

Hi all,

I am using Dr Lisa's chart and Tanya's chart for finding the phosphorus levels in foods. I know what the recommended levels are when you use the % dry matter measure, but I can't find it for the mg/100-kcal level.

Can anyone point me to, or does anyone know, what the target levels are in the second measuring system? I am aiming for under 2%, which I know is high, but Rosie still has normal CR and her phosphorus is 4.2. Her BUN was 50. Her BUN has been higher in the past (58) as have her CR (mildly over normal) and phosphorus (4.4). So, I am looking just to take some of the strain off her kidneys.

She will eat only pate foods, which elminates so many really good ones!

Thanks!

 

[Elizabeth and Bertie]

Hi Lydia,
Here's a paragraph that I found by endocrinologist Dr Mark E Peterson (the link to the whole article follows):

"For this purpose, a phosphate content that is < 100 mg per 100 kcal is ideal, especially in a cat with severe kidney disease. This can be done either by feeding a prescription diet (again, these are too low in protein) or having a homemade diet formulated. In cats with mild or early kidney disease, use of an OTC diet with lower phosphate levels may be used. If an OTC diet is selected, look for one that contains < 250 mg of phosphate per 100 kcal. You may have to call a company for specific information. Fish-based cat foods are often high in phosphorus, so I stay away from these diets for cats with CKD."

Here's the link to the article (hoping this helps...):
http://www.animalendocrine.com/wp-c...thyroidism-Concurrent-Renal-Disease-Final.pdf

Edited to add: BTW, Many of us have used 'ordinary' foods with phosphorous binders added to reduce phosphorous absorption.

Eliz

 

[manxcat419]

Hi Lydia

We go for under 200 mg/100 kcal for Rosa, though she still has to have a binder on top of that. I have a list here that I use for shopping that might be of some help to you - I combined the calories from carbs % with the phosphorus dry matter % from the catinfo.org site so I can see at a glance what the phosphorus DM % is https://docs.google.com/spreadsheets/d/1E_HZnTcJdsr20Gpivo2ID1KQ9wlZAe1Xy3LDTDVRofU/edit?usp=sharing

 

[Lydia--(Rosie & Basil) GA]

Thank you! I will look at this and try to figure out what I want to do. I'm not ready for phos binders yet, though. I did use them with my kidney dog. I jsut want to get lower on the phosphorus hog if I can without upsetting the 19 3/4 year old contessa.

@manxcat419 Thank you!

 

[manxcat419]

Everything on that list is under 1% phosphorus DM - with a few of them, while not at the prescription food level, being well under. Our old girl, Shadow managed to keep her phosphorus well within range all the way through CKD with food at these levels - Rosa is just that little more difficult, but her phosphorus was high on diagnosis.

 

[Critter Mom]

I have a list here that I use for shopping that might be of some help to you - I combined the calories from carbs % with the phosphorus dry matter % from the catinfo.org site so I can see at a glance what the phosphorus DM % is https://docs.google.com/spreadsheets/d/1E_HZnTcJdsr20Gpivo2ID1KQ9wlZAe1Xy3LDTDVRofU/edit?usp=sharing

Bookmarked!


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