Dog food nutrition basics — ingredients, macronutrients, and AAFCO standards guide

biotechIngredients & Nutrition

Nutrition Basics

Reading a food label is the first step to choosing well. From decoding ingredient lists and guaranteed analysis to understanding essential nutrients and international standards — it all starts here.

AAFCO 2023FEDIAFNRC 2006

Guides in This Section

3 guides

Core Topics

labels · macronutrients · standards

AAFCO

Complete & Balanced

The most important label claim

DM basis

The Right Way to Compare

Dry matter conversion required

What You Need to Know

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Ingredients are listed by weight

The first ingredient makes up the largest proportion of the food. Check that a named protein source (chicken, beef, salmon, etc.) appears near the top.

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Minimum 18% protein (adults) / 22% (puppies)

AAFCO requires at least 18% protein on a dry matter (DM) basis for adult dogs, and 22% for puppies, pregnant, and lactating dogs.

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Look for 'Complete & Balanced'

Foods without an AAFCO complete and balanced statement may be supplemental or treat foods. Always verify this label claim before feeding as a sole diet.

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Always convert to dry matter for comparisons

Dry kibble (~10% moisture) and wet food (~75% moisture) cannot be compared by their as-fed percentages. Convert to dry matter (DM) basis to make an accurate comparison.

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