How Fat-to-Protein Ratio Helps Detect Inferior Meat Content in Dog Food

Fat-to-Protein Ratio in Dog Food Comparison

Which Was Used to Make Your Dog’s Food?

It’s hard to believe.

Yet on a pet food label…

Each of the ingredients above can LEGALLY be called “meat”.

One is cut from fresh, lean beef… while the other consists of fatty trimmings and gristle taken from slaughterhouse waste.


How can you tell which one was used to make YOUR dog’s food?

The fat-to-protein ratio may help reveal the answer.

What’s Fat-to-Protein Ratio?

The fat-to-protein ratio is a number calculated from info found on every food label. It’s used by The Dog Food Advisor to help detect excessive levels of fatty meat hidden in a pet food.

Best of all…

You can calculate ‘FPR’ yourself.

Don’t worry. It’s easy. I’ll show you HOW in the next section.

How to Calculate ‘FPR’ Yourself

Look for the “crude fat” and “crude protein” numbers found in the “Guaranteed Analysis” section of every pet food label.

Then, grab a simple handheld calculator and:

  1. Divide the amount of fat… by the amount of protein
  2. And multiply that number by 100

And voila!

You’ve got the fat-to-protein ratio… expressed as a percentage.

Already Calculated for You

If you’d rather not calculate FPR yourself…

You can find it already done for you in every review we post on this website.

Simply find your dog’s food on our Reviews by Brand page. And in the “Nutrient Analysis” section…

You’ll find the fat-to-protein ratio, like this:

Fat-to-Protein Ratio in Nutrient Analysis Section DFA Review

Understanding FPR. What Does It Mean?

In general…

The higher the FPR… the more likely the food contains an excessive amount of fatty meat… when compared to the amount of protein in that same recipe.

Don’t take FPR literally. It’s a RELATIVE indicator. Not an exact measurement.

It’s like using your hand to sense the temperature of the water flowing from your tap. It tells you if it’s too hot.

But it doesn’t tell you the actual temperature.


Don’t use FPR to micro-analyze or compare dog foods. That’s NOT its purpose.

You’re looking for outliers! Crazy high numbers… that just don’t seem right.

What’s a ‘Normal’ FPR?

The FPR can range anywhere from 30%… to over 100%.

As a rule…

The average FPR for both wet and dry foods appears to be about 55%.

In fact…

The overwhelming majority of dog foods will have FPRs below 80%… with most dry foods hovering around 70% or lower.

Wet dog foods (like canned, raw or fresh recipes) can be the biggest offenders. They can have FPRs at the upper end of the range.

For example…

We tend to be suspicious of any dog food with an FPR that’s north of 80%.

And we flat out reject FPRs 90% or higher.

For this reason…

You’ll not find ANY dog foods on our Best Dog Food pages with outrageous FPR numbers.

Keep in mind, you’re looking for outliers! Crazy high numbers… that just don’t seem right.

The Advisor’s Most Recommended Dog Food Brands

The post How Fat-to-Protein Ratio Helps Detect Inferior Meat Content in Dog Food appeared first on Dog Food Advisor.

Leave a Comment

Get the latest german shepherd advice Daily For Free !

Enter your email address to get advice on German Shepherds delivered to your inbox for free...

Thank you for subscribing to German Shepherd Advice email newsletter!