Table 2.

Baseline daily intake of selected cruciferous vegetables and urinary sulforaphane metabolites among women participating in a randomized clinical trial

	Mean	se
Cruciferous vegetables from food lines (g/d; n 54)
Bok choi	1·5	0·5
Broccoli spears	13·8	2·2
Broccoli florets	11·6	1·8
Brocco flower	2·1	1·0
Broccolini	3·0	1·0
Brussels sprouts	9·2	1·5
Cabbage (green)	3·3	0·8
Cabbage (red)	1·4	0·4
Cauliflower	15·6	2·1
Chinese cabbage/napa	1·0	0·4
Collard greens	1·2	0·3
Daikon root	0·2	0·1
Garden/watercress	1·3	0·7
Kale	1·5	0·6
Kohlrabi	0·2	0·1
Mustard greens	0·1	0·1
Rutabaga	0·6	0·2
Sauerkraut	0·6	0·2
Turnip	0·9	0·2
Turnip greens	1·2	1·0
Total cruciferous vegetables from food lines	70·6	6·9
Cruciferous vegetables from mixed dishes/juice (g/d; n 54)
Eggroll or spring roll	0·5	0·1
Vegetable soup or stews with cruciferous vegetables	3·3	1·1
Meat/fish/shellfish with broccoli	3·2	0·6
Meat/fish/shellfish with other cruciferous vegetables	0·004	0·001
Vegetarian Chinese dishes	2·6	0·6
Stuffed cabbage	0·1	0·04
Juice made with cruciferous vegetables	0·02	0·01
Total cruciferous vegetables from mixed dishes/juice	9·8	1·5
Cruciferous vegetables from condiments (g/d; n 54)
Horseradish	0·2	0·05
Chinese mustard	0·1	0·05
Brown mustard	0·3	0·08
Yellow mustard	0·3	0·1
Mustard seed/powder	0·07	0·02
Wasabi	0·4	0·1
Total cruciferous vegetables from condiments	1·3	0·3
Total cruciferous vegetables from all foods	81·7	7·8
Urinary sulforaphane metabolites (µm/mm creatinine; n 43)*
Total SFN ITC	0·08	0·01
SFN-NAC	0·03	0·006
SFN-Cys	0·03	0·004
SFN-GSH	0·004	0·001
SFN-CG	0·02	0·003
SFN	0·002	0·001

SFN ITC, sulforaphane isothiocyanates; SFN-NAC, SFN-N-acetylcysteine; SFN-Cys, SFN-cysteine; SFN-GSH, SFN-glutathione; SFN-CG, SFN-cysteinylglycine; SFN, sulforaphane.

^*Urinary metabolite concentrations normalized to creatinine in millimolar concentration.