Allergy Testing

With just 0.25mL serum, get up to 125 allergens tested. The lowest volume, best value true allergy test available.

Allergy Panels

Canine or Feline

Allergy IAllergy IIAllergy III
(Panel I + II)
# of Allergens
see below
64 (63 in cats)61125
(64 + 61)
(by type)
31 – Food
33 – Environmental
41 – Food
17 – Environmental
3 – Other: 3
72 – Food
50 – Environmental
3 – Other
Antibody TypeIgEIgEIgE
Volume Needed0.25 mL
0.25 mL
0.25 mL

The VDI Advantage

Allergy testing should be accessible, easy, and cost-effective for our pets. Detecting true allergies, not sensitivities and intolerances, is a simple process that can have profound results on their long term health. VDI now offers affordable allergy testing to compliment the other wellness and acute care testing already being done through the lab.

­• Affordable

• Very Small Sample Volume

• Easy to combine with other VDI tests

Which pets should test?

  • ADR pets with undiagnosed GI signs
  • Chronic GI distress
  • Scratchy, Itchy, Red, or inflamed Skin
  • Chronic Ear Infections/ Head shaking
  • Excessive Licking
  • Hair loss
  • Chronic Cough / Sneezing
  • Runny Eyes
  • Diarrhea or Vomiting with unknown source
  • Or as part of general wellness screening

What’s Needed?

  • Minimum: 0.10 mL – 0.25 mL serum. We we ask for more if possible (~1.0mL), especially if running other VDI tests.
  • Fasting not required
  • Can be added to other routine VDI tests
  • No indication that Antihistamine & cyclosporine interfere.  Apoquel & glucocorticoid therapy is not shown to interfere.

Reports Include:

  • Allergens listed by group
  • Allergen response intensity and class
  • Total allergen response count
  • Semi-quantitative results

Sample Reports:

Meet the Allergens

Food (72 Allergens)

Meat Allergies

PorkAllergy I
BeefAllergy I
DuckAllergy I
ChickenAllergy I
LambAllergy I
TurkeyAllergy I
Red deerAllergy I
RabbitAllergy II

Vegetable, Fruit, Nut Allergies

PeaAllergy I
Soy beanAllergy I
CarrotAllergy I
PotatoAllergy I
Sweet PotatoAllergy I
PumpkinAllergy I
TomatoAllergy I
AppleAllergy I
OrangeAllergy II
StrawberryAllergy II
BlueberryAllergy II
KiwiAllergy II
MelonAllergy II
MangoAllergy II
BananaAllergy II
PeachAllergy II
PearAllergy II
PineappleAllergy II
PlumAllergy II
WatermelonAllergy II
ParsleyAllergy II
CabbageAllergy II
CucumberAllergy II
BroccoliAllergy II
CauliflowerAllergy II
RadishAllergy II
PaprikaAllergy II
SpinachAllergy II
PeanutAllergy I

Dairy Allergies

MilkAllergy I
Cheddar / Gouda cheeseAllergy I
α-lactalbuminAllergy II
β-lactoglobulinAllergy II
CaseinAllergy II
ButtermilkAllergy II

Egg Allergies

Egg whiteAllergy I
Egg yolkAllergy I

Yeast Allergies

Yeast, Baker’sAllergy I
Yeast, Brewer’sAllergy II

Grain Allergies

WheatAllergy I
CornAllergy I
RiceAllergy I
GlutenAllergy II
BarleyAllergy II
OatAllergy II
BuckwheatAllergy II
MilletAllergy II
LentilAllergy II
Sweet chestnutAllergy II
Linseed (Flax seed)Allergy II

Seafood Allergies

Crab / shrimpAllergy I
CodfishAllergy I
TunaAllergy I
SalmonAllergy I
MackerelAllergy I
Blue mussel / ClamAllergy II
TroutAllergy II
HerringAllergy II
SardineAllergy II
AnchovyAllergy II
Sea bassAllergy II

Insects and Mites (12 Allergens)

Insect Allergies

FleaAllergy I
CockroachAllergy I
Bee venomAllergy II
Fire AntAllergy II
MosquitoAllergy II
Silkworm pupaAllergy II

Mite Allergies

D. pteronyssinusAllergy I
D. farinaeAllergy I
Acarus siroAllergy I
T.putrescentiaeAllergy I
G. domesticusAllergy II
B. tropicalisAllergy II

Plants (29 Allergens)

Tree Allergies

Alder / BirchAllergy I
HazelAllergy I
Maple leaf sycamoreAllergy I
Willow / CottonwoodAllergy I
OakAllergy I
White PineAllergy I
AcaciaAllergy I
White AshAllergy I
Japanese CedarAllergy II

Grass Allergies

Bermuda grassAllergy I
Orchard /
Timothy grass
Allergy I
RyegrassAllergy I
Cultivated ryeAllergy I
Sweet vernal grassAllergy II
Common reed grassAllergy II
Bent grassAllergy II

Weed Allergies

Common ragweedAllergy I
PlantainAllergy I
MugwortAllergy I
Sheep’s sorrelAllergy I
Japanese hopAllergy II
Ox-eye daisyAllergy II
DandelionAllergy II
Russian thistleAllergy II
GoldenrodAllergy II
Common pigweedAllergy II

Animal, Mold, and Other (13 Allergens)

Animal Allergies

Cat Epithelium*Allergy I
Wool, SheepAllergy I
Feather MixAllergy I
Cattle EpitheliumAllergy II
*only available in Canine Allergy I

Mold Allergies

Penicillium notatumAllergy I
C. herbarumAllergy I
Aspergillus fumigatusAllergy I
Candida albicansAllergy I
Alternaria alternataAllergy I
M. pachydermatisAllergy I

Other Allergies

House dustAllergy II
CCDAllergy II
Havea latexAllergy II

More About Allergy Testing

Allergy vs Intolerance vs Sensitivity

The primary difference between an allergy, a sensitivity, and an intolerance is that an allergy results in an immune system reaction to a substance, while a sensitivity or intolerance involves no immune response. While the later may result in occasional discomfort for your pet, they are typically not the significant kind of immune response that may occur with allergies. VDI’s Allergy Panels test for true allergies.


Although the word “Allergy” is colloquially used to describe any reaction to a foreign substance, it’s not wholly accurate. A true allergy describes a reaction produced when the body meets a normally harmless substance, which has been “remembered” from a previous exposure and subsequently produces the “IgE” antibody.

In order for an allergy to develop, a pet must be exposed to the substance at least once before the allergy will manifest. The immune system learns to attack this particular substance for an unknown reason, at which point the immune response will go into hyperdrive to attack it – resulting in elevated IgE levels.


A sensitivity is a delayed immune reaction resulting in the production of “IgG” antibody to a foreign substance, typically food. Though they may cause some clinical signs this type of reaction is not an allergic reaction and does not carry the same seriousness as a true allergy.

IgG testing for sensitivity is readily available however it has not been correlated to clinical signs or disease, given that IgG response is the body’s natural response to consuming any foreign substance and is expected. Additional IgG testing has been shown to produce several “positives” which may lead to over-restriction of the diet.

Concerningly, patients with food intolerances acting on the results of IgG panels may see improvements because the large number of foods they must eliminate may remove the culprit from their diet by coincidence. However, over-restriction can have impacts as it may place a patient at risk of nutritional deficiencies.


An intolerance is the body’s inability to breakdown certain foods due missing or reduced enzymes responsible for that metabolism. This can result in clinical signs and discomfort for the pet. An example of an intolerance would be lactose intolerance – the absence of the enzyme lactase to break down dairy products results in GI discomfort. Intolerances do not produce either IgE or IgG antibody responses.

Options for pets with Allergies

The veterinarian is the best resource for discussing options for therapy if a pet has been shown to have allergies. There are a few common options that may suitable including:

  1. Avoidance of the Allergen (preferred if possible)
  2. Medications to manage symptoms (steroids, antihistamines, etc) for the short term
  3. Hyposensitization (desensitization) / Immunotherapy

Hyposensitization (desensitization) & Immunotherapy

Immunotherapy (aka desensitization, hyposensitization, or allergy shots) is a method reducing the body’s sensitivity to the specific allergen causing the reaction. By introducing a specialized extract containing the offending allergen in small quantities over time, the goal is to minimize the pet’s reaction to it, thus eliminating the need for medicines such as steroids which come with side effects.

Although it has been shown effective, immunotherapy does work differently for every pet and may take up to a year of consistent therapy to see noticeable results.