Fennel is a highly aromatic and flavourful with culinary and medicinal us es and, along with the similar-tasting anise, is one of the primary ingredients ofabsinthe. Florence fennel or finocchio is a selection with a swollen, bulb-like stem base that is used as a vegetable.In a 100 gram amount, fennel seeds provide 345 calories and are a rich source (more than 19% of the Daily Value, DV) of protein, dietary fiber, B vitamins and several dietary minerals,especially calcium, iron,magnesium and manganese, all of which exceed 100% DV (table). Fennel seeds are 52% carbohydrates, 15% fat, 40% dietary fiber, 16% protein and 9% water (table).