Table 2.

Estimated silicon content ¹ of the meals (mg Si/meal) provided to all participants during the study period

Meals	Components	Day 0 3 (mg Si)	Day 1 (mg Si)	Day 2 (mg Si)
Breakfast	Egg fried rice with pork/chicken, orange juice, drinking water 2	6.78	7.70	7.34
Lunch	Rice with chicken, drinking water 2 , yogurt, sponge cake	7.59	7.33	9.01
Dinner	Rice with stir-fried pork/chicken with kale, melon, drinking water 2	9.93	7.43	7.97
	Total Si intake per day	24.29	23.86	23.91

¹ Calculated from reference food Si values (5, 18).

² Produced from tap water by reverse osmosis (Si concentration = 0.67 mg Si/L as analysed here by ICP-OES).

³ Day 0 = pre-dose, baseline collection period, conducted 24 h prior to ingestion of the test solutions on day 1.