Question on food

What method are we going by to determine carbs?

DME

DMB

As Fed

I need to find out about some and I want to make sure I ask for the method we use.

I can't believe freeze dried raw can be over 15%.

 

TNA is what is used on Dr. Lisa Pierson's cat food chart. (TNA = As Fed) From a real can of food that has been tested in a lab.

"The data used to calculate the values on this chart are from Typical Nutrient Analysis (TNA) data - not the Guaranteed Analysis (GA) data which is listed on the product’s package (can/pouch/bag). GA values are reported as minimums and maximums and are, by definition, inaccurate since there is no ceiling or floor, respectively."

"Data accuracy: Even though TNA data are more precise than GA data, the values on this chart should be taken as very loose approximations. All foods vary in their nutrient composition and, therefore, commercial food formulations will vary from batch-to-batch."

 

Thank you Deb. I thought I read Dr Lisa now used as fed. Certainly makes sense as that is what they are eating.

 

Took the quoted sentences directly from her food chart posted in the sticky in Feline Health main forum. It's the 2017 version that is found at the top of the Feline Health forum labeled Dr. Pierson - New Food Chart.

 

• How to Calculate the Nutrient Content of Commercial Cat Foods
  • Calculating % Calories from Carbohydrates written by FDMB member, Marje and Gracie
  • Dr. Lisa's Cat Food Data Base Calculator - Type in the percentages of minimum protein, maximum fat, maximum carbs, and maximum phosphorus you're looking for. You also have the option to choose a specific cat food company. This tool will automatically list the cat foods from the Food Chart created by Lisa Pierson DVM list that meet your specifications.

 

The ones I'm trying to find out are not on the list. So I'm emailing the companies but need to know what method to ask for. Dr Lisa doesn't use DMB anymore.

 

Marje’s post tells you how to calculate from either As Fed or DMB.

 

I've tried to do the calculations. Even tried to set it up on pc to do it automatically so I could put it on phone and be handy in store. There are to many steps and it's confusing.

I'm no math whiz, but pretty good in excel. Maybe it was just a bad day. I'll give it another shot.