Hi Tom,

I can't think of anything that looks specifically at magnesium. Most people are looking for carb or phosphorus content, for kitties diagnosed with diabetes or CKD. There's a food chart by Dr. Pierson of canned food, and one from Binkyspage of dry food, but both look at carbs, fat, protein, and phosphorus. The dry food chart: Binky's Page: Resources for Feline Diabetes

Maybe someone else will have other ideas.

I feed Dave's 95% line wet and NV Instinct dry but honestly, other than the fact that they're grain-free, I couldn't tell you the nutritional info without looking!

 

Oops. That link is to the home page. This is the one to the chart: http://binkyspage.tripod.com/dryfood.htmlhttp://binkyspage.tripod.com/dryfood.html

 

I'm going to guess your kitty has been diagnosed with FLUTD or have urinary/kidney issues, and thus you're seeking low magnesium food for your cat. If so, perhaps you should be really looking for a low phosphorus diet instead?

Phosphorus is a general indicator of the calcium and magnesium load of the diet. If a diet is low in phosphorus, chances are it is also fairly low in calcium and magnesium since all of those minerals are high in bone material and if a diet is low in phosphorus, it is probably low in bone matter.

(Excerpted from Lisa Pierson's website, catinfo.org.)


In addition, this info could also be helpful to read:
Ash and Magnesium in Cat Food

All I can suggest is that you look for something that is high in protein, as it would help keep the aciditiy of urine at optimal levels. I don't have any experience feeding a cat with urinary/kidney issues, but I sure hope you find something appropriate and more members can give you pointers.

 

Agh, ran out of edit time.

This listing maybe more helpful (shows phosphorus content in dry foods) and is a bit more up to date:
Tanya's Comprehensive Guide to Feline Chronic Kidney Disease- Dry Food Data USA

 

Not sure if it meets your requirements, but you might want to take a look at Wysong Uretic.

 

Thanks for the replies. Good info. Those dry food lists will come in handy.

Spirite - Binkys site is new to me, so gives me lots of new foods to look at. Do you know how to convert those numbers to the Dry matter number. or direct me to a site with the formula? Sometimes low phosphorus and low magnesium go hand in hand on cat foods. I am looking for a reasonable phosphorus number also. I want this trail to be about low magnesium though.

TabbCatt - I have seen Tanya's list before, has been a little while though, so will plug through that again.

Doodlebug - I did look at Wysong Uretic. I have attached a lync to the numbers for this

Dry Matter Analysis of Wysong Pet Foods

Magnesium not too bad at .10 dry matter, I would like a little lower. .08 or lower DMA. Phosphorus a little too high for my liking at 1.3, thanks for bringing this up though.

thanks again.

 

The AAFCO requirement for magnesium is:

Adult: .04% min
Growth & Reproduction: 08% min

So that tells you that All Life Stages foods will be at .08 min or higher. I would suspect that most will be higher. So it's probably best to focus on Adult Maintenance foods to find what you're looking for.

Also...with the numbers for magnesium being presented as a minimum, the level can actually be a lot higher. You really need to find "as fed" information for the food(s) you're interested in, which will most likely require phone calls to the manufacturer.

 

Thanks Doodlebug, more good info. I did not know the Aafco numbers.

 

TabbCatt, thanks for posting the link to Tanya's site. I don't think I even knew there was a dry food chart there; I've only seen the wet food one!

tvoislow, I know I've read several explanations of how to do dry matter conversions but can never remember. I believe the food chart from Tanya's site or the one I linked to has an explanation at the beginning, but I did a forum search and found this: http://www.catforum.com/forum/38-health-nutrition/129028-comparing-cat-foods-dry-matter-basis.html

Hope that helps. When it comes to numbers, my eyes start to cross... 8O

 

Starting this up again. Found another.


https://www.youngagainpetfood.com/zero-carb-mature-health.html

Some of their other foods are pretty low also.

 

This is All good Information to have! I know others struggle, trying to find foods for ill kitties, as well...
Thanks!
Sharon