Fiddlehead Fern - Health Effects

Health Effects

Fiddleheads contain various vitamins and minerals, as well as omega-3 and omega-6 fatty acids. They are a source of antioxidants and dietary fibre. They are low in sodium, but rich in potassium, which may make them suitable for people who need a low-sodium diet.

Fiddleheads may harbour microbes, and should be washed and cooked before eating.

Many ferns also contain the enzyme thiaminase, which breaks down thiamine. This can lead to beriberi and other vitamin B complex deficiencies if consumed to excess or if one's diet is lacking in these vitamins.

Further, there is some evidence that certain varieties of fiddleheads, e.g. bracken (Pteridium genus), are carcinogenic. Ostrich fern (Matteuccia struthiopteris) is not thought to cause cancer, although there is evidence it contains an as yet unidentified toxin.

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