Table 1.

Major nutritional factors assessed with BDHQ

Energy	Copper	Cholesterol
Weight of foods	Manganese	Soluble dietary fiber
Water	Retinol	Insoluble dietary fiber
Protein	Vitamin D	Dietary fiber
Animal protein	α-Tocopherol	Salt equivalent
Vegetable protein	Vitamin K	Sucrose
Fat	Vitamin B1	Alcohol
Animal fat	Vitamin B2	Daidzein
Vegetable fat	Niacin	Genistein
Carbohydrate	Vitamin B6	n-3 fatty acid
Ash content	Vitamin B12	n-6 fatty acid
Sodium	Folic acid	α-Carotene
Potassium	Pantothenic acid	β-Carotene
Calcium	Vitamin C	Cryptoxanthin
Magnesium	Saturated fatty acid	β-Tocopherol
Phosphorus	Monounsaturated fatty acid	γ-Tocopherol
Iron	Polyunsaturated fatty acid	δ-Tocopherol
Zinc

BDHQ brief-type self-administered diet history questionnaire