At-home microsample collection | Measures IgE, IgG, IgG4, and complement C3d responses to 88 foods
The P88-DIY Dietary Antigen Test from Precision Point Diagnostics is a clinically advanced food immune reactivity panel designed to identify both immediate and delayed immune responses to commonly consumed foods. Using a simple, validated pain-free microsample collection device, this test measures IgE, IgG, IgG4, and complement (C3d) reactions to 88 dietary antigens, providing insight into food sensitivities, allergies, and inflammation-related symptoms. Unlike standard food sensitivity panels, the P88-DIY evaluates four immune pathways to offer a more complete picture of how the body may be responding to food antigens, making it a valuable tool in identifying hidden contributors to chronic symptoms.
This test is ideal for adults and children and can be collected conveniently at home without the need for a traditional blood draw.
What This Test Evaluates:
IgE - Immediate hypersensitivity reactions
IgG / IgG4 - Delayed food sensitivities and tolerance patterns
Complement (C3d) - Inflammatory immune amplification
88 whole food antigens across all major food categories
What’s Included:
P88-DIY test kit with microsample collection device
At-home instructions for collection
Prepaid return shipping materials
Full laboratory analysis by Precision Point Diagnostics
- 30-Minute Pre-Test Consultation - Review your health history, symptoms, and goals so we can prepare you for the test process.
- 30-Minute Post-Test Review - Once your results are in, we’ll go over the findings together and help you understand what they mean for your health.
- Integrative Functional Health Support Plan - A customized action plan with lifestyle, nutritional, and supplement recommendations to help you restore balance and optimize your well-being.
Who This Test Is For:
This test is ideal for individuals experiencing:
Digestive symptoms (bloating, gas, constipation, diarrhea)
Chronic skin conditions (eczema, acne, rashes)
Fatigue, low energy, or brain fog
Joint pain, inflammation, or stiffness
Migraines or headaches without clear triggers
Anxiety, irritability, or mood instability
Behavioral or focus issues in children
Autoimmune flares or unexplained inflammation
Food reactivity without clear patterns
- Little to no progress with elimination diets
This test is especially useful for individuals seeking objective data to guide food-based healing and those needing a gentle, non-invasive collection method.
HSA/FSA Eligible - Check with your plan administrator, as many Health Savings Accounts and Flexible Spending Accounts allow reimbursement for this testing service.

