Table 2.

Tested foods and test schedule.

Examination period	Screening	0 week	4 weeks	8 weeks	12 weeks
Ophthalmic examination (HFC)	●	●	●	●	●
Anthropometric	●				●
Doctor’s questions	●				●
Blood test/Urinary test	●				●
Diary

Test points: ●, Diary entry period: .