Colour Interval Value Publication Food Name Reference
[ 0.00, 0.13 ) 0.00 mg/100 g FW Iceberg lettuce (Lactuca sativa L. cv capitata L.) Milder I.E.J., et al (2005) Lignan contents of Dutch plant foods: a .... British Journal of Nutrition 93:393-402 PubMed (15877880)
6.00e-04 mg/100 g FW Lettuce, romaine hearts, raw Thompson L.U., et al (2006) Phytoestrogen content of foods consumed .... Nutrition and Cancer 54:184-201 PubMed (16898863)
[ 0.27, 0.41 ) 0.40 mg/100 g FW Lettuce (Lactuca sativa L.) Milder I.E.J., et al (2005) Lignan contents of Dutch plant foods: a .... British Journal of Nutrition 93:393-402 PubMed (15877880)