Fresh, or so-called “wet,” walnuts have a softer texture and different moisture content compared with fully dried walnuts. Like dried walnuts, they provide healthy fats, plant protein, fiber, minerals and antioxidant compounds.
However, some popular claims about fresh walnuts — including that they can treat thyroid disease, anemia or intestinal parasites — are not supported by sufficient scientific evidence.
1. Do Fresh Walnuts Support Thyroid Health?
Walnuts contain several minerals and nutrients, but they should not be considered a reliable source of iodine or a treatment for iodine deficiency.
People with suspected iodine deficiency or thyroid problems should have the underlying condition properly evaluated rather than attempting to correct it by eating walnuts.
2. May Support Cardiovascular Health
Walnuts are rich in unsaturated fats and contain alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid.
Including walnuts as part of a balanced diet may help improve cholesterol levels and support cardiovascular health. However, walnuts do not literally “clean” blood vessels and should not be considered a method of preventing or treating blood clots.
3. Provide Important Minerals
Walnuts contain nutrients including copper, magnesium and manganese, as well as smaller amounts of iron and several B vitamins.
These nutrients participate in normal energy metabolism and other important biological processes. Nevertheless, walnuts alone cannot treat iron-deficiency anemia or chronic fatigue, both of which may require medical evaluation and specific treatment.
4. Fiber Can Support Digestion
Walnuts provide dietary fiber, which supports normal digestive function and the gut microbiome.
The thin skin surrounding walnut kernels also contains various plant compounds, including polyphenols. Claims that it works as a “natural antibiotic,” removes intestinal parasites or cures digestive disorders, however, have not been adequately demonstrated in humans.
5. A Nutrient-Rich Addition to the Diet
Walnuts contain numerous antioxidant compounds and healthy fats that can contribute to an overall nutritious diet.
Rather than viewing fresh walnuts as a medicine against specific diseases, they are best considered a nutrient-dense food that can be included in a varied and balanced diet.
Walnuts are also calorie-dense, so moderate portions are generally sufficient. People with a tree-nut allergy should avoid them completely, while anyone who experiences digestive discomfort after eating walnuts may need to reduce the amount consumed.
This material is for informational purposes and does not replace professional medical advice, diagnosis or treatment.
