Help determine if their existing food OK?

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bcsteeve

Member Since 2023
Their food isn't on the list. So at first I was going to just get rid of it, particularly since the protein appeared so low (9%). But, then I learned that the Guaranteed Analysis figures aren't all that useful, plus it has to be converted to Dry Matter figures before comparing.

So I sent an email to Iams asking for the "Typical Nutritional Analysis" for the 3 flavors we already have. Just now they responded in this not-wonderfully-worded email, but if the numbers are correct then these should be good, right?

Hello Steven,

Thank you for contacting IAMS.


I would be happy to help you with your inquiry. we usually do not offer the Typical Nutritional Analysis but since you have pin point a few of the information we could make an expectation and provide them.



  • Iams Perfect Portions Healthy Adult Chicken Recipe Pate
  • Protein 9.21%
  • Fat 9.3%
  • Carbohydrate 0.9%
  • Moisture 76.0%
  • Taurine 0.06%
  • Iams Perfect Portions Healthy Adult Salmon Recipe Pate
  • Protein 11.30%
  • Fat 6.8%
  • Carbohydrate 0.9%
  • Moisture 77.4%
  • Taurine 0.06%
  • Iams Perfect Portions Healthy Adult Tuna Recipe Pate
  • Protein 11.30%
  • Fat 6.8%
  • Carbohydrate 0.9%
  • Moisture 77.4%
  • Taurine 0.06%
All the information provided up are in Per 100g "As Is".

The carbs shown above do NOT match what is already available on sites such as CatFoodDB, for example (here's their analysis of the chicken) which shows carbs at 16%. However, that's based on "estimates". I think what they're doing is adding the figures from the package which are moisture 78%, Protein 9%, Fat 5% and Fiber 1% which equals 93%... and then assuming the remaining 7% is split equally between Carbs and Ash (as they both say 3.5% "est"). That 3.5% carb equates to 16% when converting to Dry Matter Analysis, so I figured that's not good.

But if we believe the email I just received, then 0.9% carbs and 76% moisture works out to just 3.75% carbs on a Dry Matter basis! The protein works out to 38.38%, which is a bit low though.

To complete this, the Salmon and Tuna recipes work out to 50% protein and 4% carbs.



I have MANY BOXES of this food at home after buying it on sale months ago. Sadly, we mistakenly understood that wet food was a "treat" and kibble was better and that's probably why we're in this situation now. But going forward, would you say it is safe to use this food? If not for our diagnosed diabetic elderly male, then at least for the healthy (if a little overweight) young female? Or is this food we should not use because it isn't on "the List"?

Below are the ingredients lists, FYI.

Chicken:

Code:
chicken, water, poultry liver, chicken broth, dried egg product, guar gum, potassium chloride, sodium tripolyphosphate, fish oil, magnesium sulfate, taurine, tapioca starch, dl-methionine, choline chloride, salt, calcium carbonate, thiamine mononitrate, vitamin e supplement, zinc sulfate, iron oxide color, ferrous sulfate, manganese sulfate, copper sulfate, pyridoxine hydrochloride, potassium iodide, vitamin d3 supplement, folic acid, menadione sodium bisulfite complex

Salmon:

Code:
Chicken, Salmon, Water, Poultry Liver, Chicken Broth, Dried Egg Product, Calcium Carbonate, Guar Gum, Potassium Chloride, Sodium Tripolyphosphate, Fish Oil, Magnesium Sulfate, Taurine, Tapioca Starch, Choline Chloride, Salt, DL-Methionine, Thiamine Mononitrate, Vitamin E Supplement, Iron Oxide Color, Zinc Sulfate, Ferrous Sulfate, Manganese Sulfate, Pyridoxine Hydrochloride, Potassium Iodide, Vitamin D3 Supplement, Folic Acid, Menadione Sodium Bisulfite Complex

Tuna:

Code:
Chicken, Water, Tuna, Poultry Liver, Chicken Broth, Dried Egg Product, Guar Gum, Calcium Carbonate, Potassium Chloride, Fish Oil, Sodium Tripolyphosphate, Magnesium Sulfate, Taurine, Tapioca Starch, DL-Methionine, Choline Chloride, Salt, Thiamine Mononitrate, Vitamin E Supplement, Iron Oxide Color, Zinc Sulfate, Ferrous Sulfate, Manganese Sulfate, Copper Sulfate, Pyridoxine Hydrochloride, Potassium Iodide, Vitamin D3 Supplement, Folic Acid, Menadione Sodium Bisulfite Complex
 
Hi,

We usually calculate carbs on a 'percentage of calories' basis. This calculation can be done with either dry matter or wet 'as fed' percentages (we're only looking at the macro nutrients, water has no calories...)

The data you have from the manufacturer is a bit unusual. Typically we see percentages for protein, fat, ash, fibre, and moisture by weight, and then have to begin the calculation by deducting those percentages from 100% to get the carb content by weight. However, the manufacturer already seems to have given you the carb percentage by weight, so it's the ash and fibre that you don't have.

I think I can see two ways to calculate the percentage of calories from carbs, one using a simple online calculator, the other by doing the calculation manually...

...From what I can see (and I've just tried this out), the easiest way to work out the percentage of calories from carbs would be to do the following and then use a simple online calculator to complete the calculation...
Start by adding up the percentages for everything you have there and deducting that from 100%. That should give you the percentage for the combined ash and fibre content.
Once you've done that you can use this super easy online calculator to calculate the 'percentage of calories from carbs' for you. Just put in all the data that you have for protein, fat, moisture, and ash/fibre (doesn't matter how you divide ash/fibre between the relevant boxes), click 'calculate' and the 'percentage of calories from carbs' will be shown in the turquoise box on the bottom right.
Here is the link to the online calculator:
https://secure.balanceit.com/tools/_gaconverter/index.php

Or, if you want to just do the calculation manually you'd do the following.
Multiply protein percentage by 3.5 to give calories from protein per 100g of food
Mutliply fat by 8.5 to give calories from fat per 100g of food
Multiply carbohydrate by 3.5 to give calories from carbs per 100g of food.

Then add those up to give the total calories per 100 grams.

Then, divide calories from carbs per 100g by total calories per 100g, and multiply by 100. That should give you the 'percentage of calories' from carbs.

The results of these two calculations 'should' be the same... At least I think so....

Eliz
 
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