Pet Food Score - Petfood Advisor

Hello everyone,

I have been reading many discussions about ingredients and pet food quality, and I realized that digestibility seems to be a very important topic.

However, I am still confused about one thing:

How can consumers actually evaluate the digestibility of pet food ingredients?

Many brands claim that their recipes are “highly digestible,” but it is difficult to know what that really means from a practical and scientific perspective. Is digestibility linked mainly to ingredient quality, cooking methods, protein sources, fiber content, or something else entirely?

I also wonder whether ingredient lists alone are enough to estimate digestibility, or if laboratory testing and feeding trials are necessary to obtain reliable information.

Some foods also appear very rich in protein, but does that automatically mean the nutrients are well absorbed by the animal?

Finally, are there visible signs that may suggest poor digestibility in dogs or cats, such as stool quality, excessive volume, digestive discomfort, or coat condition?

I would love to better understand how experienced pet owners and nutrition-focused communities approach this subject beyond simple marketing claims.

Emily

Evaluating the digestibility of pet food ingredients is actually very difficult to do just by looking at the packaging. Digestibility is an "invisible" criterion that cannot be determined by a simple label scan or summarized by a single number.

Here is why evaluating it is so challenging:
It goes beyond the basic label: Two bags of kibble can display a very similar written composition on paper, yet yield completely different results in practice depending on how easily your pet can actually digest those ingredients.

It depends on complex, hidden factors: Digestibility is deeply connected to the real quality and origin of the proteins (such as whether they are animal or plant-based), the overall bioavailability of the nutrients, and the specific industrial manufacturing processes used to create the kibble.

Simplified scores cannot measure it: Automated grading apps or a "Nutri-Score" approach fail to evaluate digestibility because simple algorithms cannot capture these nuanced, unlisted quality factors.

How to make a better evaluation: Since you cannot rely on basic labels or quick scanning apps, the best way to evaluate digestibility and overall ingredient quality is to look for detailed, contextualized information. Platforms like Petfood Advisor bypass simplistic grades and instead offer a structured breakdown of recipes. By highlighting the specific strengths and weaknesses of the ingredients and analyzing the true quality of the raw materials, these tools help you understand what is actually in the food, which is a much more reliable indicator of digestibility than a standard label