| Inclusion criteria |
| Age between 2 and 17 years. |
| Positive skin prick test (mean wheal diameter ≥ 3 mm Ø and HEP-index area ≥ 0.4 and/ or detectible sIgE (> 0.35 kU/L) to cashew nut. |
| History of previous positive reaction to cashew nut or unknown exposure. |
| Written informed consent from parents (2–12 years old), or parents and child (≥ 12 years old). |
| Exclusion criteria |
| History of severe or uncontrolled asthma (according to the physician’s assessment). |
| Autoimmune diseases, cardiovascular diseases or cancers. |
| Severe psychosocial problems. |
| The patient is allergic to one or more of the ingredients of the test food, unless a suitable substitute for the ingredient in question can be found. |
| Unable to stop taking antihistamine medication for a short period. |
| Use of beta-blockers. |
| Unable to speak and understand the Dutch language. |
