Walnut intolerance involves the digestive system’s inability to properly process walnuts, resulting in discomfort and a range of symptoms. This is a non-immune response, unlike a walnut allergy, which is an immune reaction to proteins in walnuts, potentially causing severe symptoms like hives, swelling, or anaphylaxis. Walnut intolerance generally leads to milder, primarily digestive-focused symptoms and does not involve the immune system.

• Bloating and gas
• Abdominal pain
• Diarrhea
• Nausea
• Indigestion
• Headaches

If you regularly experience digestive discomfort such as bloating, abdominal pain, or diarrhea after eating walnuts, it may be advisable to consider a test for walnut intolerance. This is particularly important if these symptoms disrupt your daily activities or if the specific cause of your discomfort is unclear, as it could indicate other dietary sensitivities or health issues.

Managing walnut intolerance involves avoiding or limiting walnuts in your diet. Since walnuts are commonly used in baked goods, salads, and as a snack, it’s important to read food labels and inquire about ingredients in prepared foods. Seek alternative nuts or seeds that do not cause discomfort, such as almonds, pumpkin seeds, or sunflower seeds. For nutrients typically found in walnuts, like omega-3 fatty acids and antioxidants, include other sources in your diet. Consulting with a dietitian can provide guidance on maintaining a balanced diet while avoiding walnuts. Keeping a food diary can also be useful in identifying other potential food intolerances and in tracking dietary changes.