Table 1 Scoring method for the Diet Quality Index (DQI)

Food

Amount

<1 time/day

1 time/day

≥2 times/day

Bread

1–2 slices

1

2

3

Vegetables/salad

1 serving

1

2

3

Fruit

1 piece of serving

1

2

3

Yoghurt or milk

1 tub/1 glass

1

2

3

Pasta or rice

1 serving

1

2

3

Oil (olive or sunflower)

1 tablespoon

1

2

3

Alcoholic beverages

1 drink

1

3

1

Breakfast flakes

1 bowl

1

2

3

Food

Amount

<4 times/week

4–6 times/week

≥7 times/week

Meat

1 serving

3

2

1

Sausages

1–3 slices

3

2

1

Cheese

1 serving

3

2

1

Pastry or sweets

1 piece or serving

3

2

1

Butter or lard

1 teaspoon

3

2

1

Other vegetable oils

1 tablespoon

3

2

1

Fast food

1 serving

3

2

1

Food

Amount

<2 times/week

2–3 times/week

≥4 times/week

Fish

1 serving

1

2

3

Legumes

1 serving

1

2

3

Nuts

1 handful

1

2

3