Nutrition Testing for Dogs & Cats

You Chose a Better Diet. Now Know How It’s Working.

You put thought, time, and care into feeding your pet well. But even the best diet cannot show how your individual dog or cat digests, absorbs, and utilizes nutrition. VDI laboratory testing helps replace guessing with objective information you can review with your veterinarian.

Veterinary specialty laboratory
Test kits available for pet parents
Reports to review with your veterinarian

Thoughtful nutrition deserves objective information.

For Dogs & Cats

Even Great Diets Leave Questions

The Food Label Tells You What Goes In—Not What Your Pet Gets Out.

Raw, fresh, home-prepared, freeze-dried, premium kibble, and carefully selected supplements can all be thoughtful choices. The unanswered question is how that plan is working for your individual pet.

RawFreshHome-PreparedFreeze-DriedPremium KibbleSupplemented

Every pet is different. Age, digestive health, the gut microbiome, metabolism, environmental exposure, and medical history can all influence nutritional status—even when two pets eat the same diet.

A food label can show:

  • Ingredients and guaranteed analysis
  • Feeding amounts and formulation claims
  • What was added to the food
  • General recommendations for a population
Laboratory testing can add:

  • Individual vitamin information
  • Mineral and element patterns
  • Gut microbiome context
  • Information related to selected exposures

Already ready to see the testing options?
Skip ahead to the individual kits and bundled nutrition panels.

Beyond the Bowl

Nutrition Is a Process, Not Just an Ingredient List

Testing helps you and your veterinarian consider more of the path between the food you choose and the information your pet’s body can provide.

Food & Supplements

Digestion

Absorption

Microbiome

Vitamin Status

Mineral Patterns

Selected Exposures

Whole-Pet Context

Testing measures what happens after the bowl.

From Assumption to Information

Diet Decisions Should Not Depend on Guessing Alone

Ingredients, marketing claims, and online reviews can help you choose a food. Laboratory information can help add individual context.

Guessing

  • Food label and ingredient list
  • Brand or formulation claims
  • General online recommendations
  • Visible changes alone

Adding Testing

  • Measured vitamin information
  • Mineral and element patterns
  • Gut microbiome findings
  • Selected exposure information

Who May Benefit

Testing Can Add Context Across Many Feeding Approaches

You do not need to wait for a crisis to ask better questions about nutrition. Testing may be useful when establishing a baseline, evaluating a change, or discussing a specific concern with your veterinarian.

Raw-fed pets
Fresh-food diets
Home-prepared diets
Supplemented diets
Digestive concerns
Skin or coat changes
Senior pets
Proactive pet parents
Diet transitions
Weight changes
Performance dogs
Multi-factor concerns

Why VDI Laboratory

Specialty Testing Built for Companion Animals

VDI was founded to expand advanced diagnostic options for companion animals and works with pet parents and veterinary professionals across specialty areas including nutrition, GI health, allergy, toxins, wellness, and cancer.

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Veterinary Specialty Laboratory

Testing is performed in a laboratory focused on companion-animal diagnostics—not a consumer wellness quiz.

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Detailed Laboratory Reports

Results are reported with context intended to support an informed discussion with your veterinarian.

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For Dogs & Cats

Panel options and sample requirements are designed around companion-animal testing.

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Pet Parent + Veterinarian

Pet parents can order test kits directly, while veterinary involvement is used where blood collection or clinical interpretation is needed.

Choose Your Test

Start Focused—or Look at More Together

Choose one area of interest or a bundled panel based on the questions you want to discuss with your veterinarian.

Not sure where to start? A focused panel works well when you have one main question. A bundled panel can be helpful when diet, digestion, mineral patterns, and exposure concerns overlap.

Compare Panels

VDI Essential Vitamins test kit

Essential Vitamins

A focused blood-based panel evaluating four important nutritional markers.

Best for: A focused nutritional assessment.
Sample: Serum; veterinary blood draw required.
  • Vitamin D
  • Vitamin B12
  • Folate
  • Magnesium

Learn about nutritional testing →
See Kit Details

VDI Mineral and Toxic Metal Fur Analysis test kit

Mineral & Toxic Metal Fur Analysis

Uses fur to evaluate longer-term patterns involving nutritional elements and environmental or toxic metals.

Best for: Mineral patterns and longer-term metal exposure.
Sample: Fur collected at home or by your veterinarian.
  • 30 elements
  • Nutritional minerals
  • Environmental and toxic metals
  • Element ratios for added context

Learn about fur mineral analysis →
See Kit Details

VDI GI Microbiome test kit

GI Microbiome Panel

Evaluates the gut microbial environment that helps shape digestion, dietary response, and intestinal health.

Best for: Digestive, diet, and gut microbial questions.
Sample: Stool collected at home.
  • Bacterial and fungal findings
  • Dysbiosis-related insights
  • Diet and fiber context
  • Action-oriented reporting

Learn about the GI microbiome →
See Kit Details

At-a-Glance Comparison

Match the Panel to the Question

Use this matrix as a starting point, then confirm the current included tests and sample requirements on each product page.

Swipe to compare panels
Area Evaluated Essential Vitamins Fur Analysis GI Microbiome Complete Flagship
Vitamin D, B12, Folate & Magnesium
Mineral Status & Element Ratios
Environmental & Toxic Metals
GI Microbiome
Allergy-Related Assessment
Mycotoxin & Glyphosate Evaluation

Panel configurations can change. Product pages should be treated as the source of truth for current included tests, pricing, and sample requirements.

VDI Flagship Nutrition Panel

For Pet Parents Who Want VDI’s Broadest Diet-Focused Evaluation

The Flagship panel brings together multiple specialty evaluations related to nutritional status, mineral patterns, the GI microbiome, allergy, mycotoxins, glyphosate, and other diet- or exposure-related questions.

It may be appropriate when several questions overlap or when you prefer one broad starting point rather than a step-by-step testing path.

A Broader Evaluation May Include

  • Essential Vitamins
  • Fur Mineral Analysis
  • GI Microbiome Panel
  • Allergy Panel
  • Mycotoxin Panel
  • Glyphosate Panel
  • Additional sample types and collection steps

Review the current product page for the exact panel configuration and required samples.

Frequently Asked Questions

Before You Order

Do I need to believe my pet’s current diet is “bad” before testing?

No. Testing can be used to add objective context to a diet you already feel good about, establish a baseline, or help evaluate questions that cannot be answered by the food label alone.

Is this only for raw- or fresh-fed pets?

No. VDI nutrition-related testing may be used with raw, fresh, home-prepared, freeze-dried, kibble, canned, or supplemented feeding plans. The goal is individual information, not endorsement of one diet format.

Can every sample be collected at home?

No. Fur, urine, and stool may be collected at home depending on the kit, but panels requiring serum need a blood draw performed by a veterinarian or qualified veterinary professional.

Does testing tell me exactly which food to buy?

No. Testing provides laboratory information about selected nutritional, mineral, microbial, allergy-related, or exposure-related areas. Results should be interpreted with your pet’s full clinical picture and used to support a discussion with your veterinarian.

Can I order without a veterinary account?

Yes. Pet-parent test kits can be purchased online. A veterinarian is still needed for sample collection when a blood draw is required.

Which panel is the best place to start?

Choose a focused panel when you have one main question. Consider a bundled panel when several areas overlap. Confirm the included tests and required samples on the current product page before ordering.

Where can I learn how pet-parent testing with VDI works?

Visit the Working with VDI page for ordering, registration, sample collection, and result-review information.

Ready When You Are

Stop Wondering Whether Your Pet’s Diet Is Working.

Choose a focused test, compare bundled panels, or continue exploring your options before you decide.