A delayed IgG food allergy can cause symptoms 3–72 hours after eating the trigger food. By then, you've eaten a dozen more meals. No wonder it's so hard to find.
IgG (Immunoglobulin G) is the most abundant antibody in your bloodstream — part of your immune system's long-term memory. When your body treats a food protein as a threat, it produces IgG antibodies specifically against it. These form immune complexes with food particles, circulate through your blood, and deposit in tissues — triggering inflammation wherever they land.
Unlike IgE allergies (immediate reactions: hives, swelling, anaphylaxis), IgG reactions are slow and silent. The delay between eating the food and experiencing symptoms can be anywhere from 3 hours to 3 days. This makes the dietary connection essentially invisible to both patient and doctor.
When gut integrity is compromised — by stress, antibiotics, processed foods, or infection — larger food protein fragments can pass into the bloodstream. The immune system tags these as threats and produces IgG antibodies. Over time, repeated exposure builds up antibody levels and increases the inflammatory response.
ImuPro measures specific IgG antibody levels against up to 270 individual food antigens using certified ELISA technology. Results are quantified precisely — not a simple positive/negative, but an actual antibody level for each food. This lets you know not just which foods to avoid, but by how much.
Your results come as a colour-coded traffic light report. RED = elevated IgG, eliminate for 8+ weeks. YELLOW = borderline, reduce. GREEN = no significant reaction, safe. A nutritionist then builds your personalised elimination and rotation protocol.
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Every day you wait is another day eating foods that may be silently inflaming your body. One blood test. Life-changing clarity. Book your ImuPro test today.
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