When results show elevated levels and you have symptoms
If you have elevated values combined with symptoms such as bloating, fatigue, or skin issues, it may suggest that your intestinal barrier is irritated or that your digestion isn’t breaking down certain foods properly.
To help the gut recover, our specialists often recommend:
Following a rotation or elimination diet for 1–6 months, depending on the degree of reactivity.
Supporting gut healing and digestion with appropriate supplements, such as digestive enzymes, bitter herbs, or nutrients that strengthen the gut lining.
Once symptoms have improved, foods can gradually be reintroduced one by one to evaluate tolerance.
When results show elevated levels but you have no symptoms
If your results show reactions but you feel well, you usually don’t need to make any dietary changes.
Elevated IgG antibodies without symptoms can occur if you’ve recently eaten those foods or if your immune system is temporarily reacting without causing problems.
However, if you received many elevated results, it can sometimes point to an imbalance in the gut (for example, increased intestinal permeability or poor digestion). Supporting the gut with digestive aids and focusing on a varied, nutrient-rich diet can help normalize immune responses over time.
When results show normal values but you have symptoms
It’s possible to experience food-related symptoms even if your test values are within the normal range. In such cases, the cause might be something other than an IgG-mediated food intolerance, such as:
Allergies or allergic cross-reactions
Histamine or other biogenic amine sensitivity (tryptamine, tyramine, serotonin, phenylethylamine)
Lactose or gluten intolerance
Fructose malabsorption
Other gastrointestinal imbalances
If this applies to you, it may be useful to explore these possibilities further with targeted testing.
How to interpret your IgG values
As a general rule:
Below 20 – not considered a significant reaction; no need to strictly avoid the food.
Above 20 – indicates a stronger immune response. It can be beneficial to pause that food for 3–6 months and later reintroduce it gradually, monitoring your symptoms.
If you’ve also done an allergy test and a food appears reactive there as well, that food should be excluded more strictly.
Important note on diet changes
If you exclude many foods, there’s a risk of nutrient deficiencies. If your list of reactive foods is long, we recommend consulting a dietitian or nutritional therapist to help design a balanced plan during your elimination phase.
Summary
Elevated results + symptoms → eliminate temporarily and support gut healing.
Elevated results + no symptoms → no need to eliminate, but support digestion if needed.
Normal results + symptoms → may be another cause such as allergy, histamine, or intolerance.