Table 1

Calculation of points according to consumption frequency of seafood and omega-3 supplements.

Intake of seafood

Dinner

As spread

Intake of supplement

Liquid

Capsules

Never

0

0

Never

0

0

≤ 1 times/month

1

1

1-3 times/month

1

1

1-3 times/month

2

2

1-3 times/week

2

2

1-2 times/week

3

3

4-6 times/week

3

3

≥ 3 times/week

4

4

Daily

4

4

Dahl et al. Nutrition Journal 2011 10:127   doi:10.1186/1475-2891-10-127