Table 1.

Food products used in analysis.

Type of Food	Product	Label
Bread	Black rice bread	Gluten-free
	Plain bread	Contains gluten
	White rice bread	Gluten-free
Noodles	Buckwheat soba	Contains gluten
	Cellophane noodle	Gluten-free
	Instant noodle	Contains gluten
	Plain noodle	Contains gluten
	Rice noodle	Gluten-free
	Spaghetti noodle	Contains gluten
	Udon noodle	Contains gluten
Powdered food items	Corn starch	Gluten-free
	Green bean powder	Gluten-free
	Potato starch	Gluten-free
	Rice flour	Gluten-free
	Soft wheat flour	Contains gluten
	Strong wheat flour	Contains gluten
	Sugar cane powder	Gluten-free
Snacks	Brown rice cereal	Gluten-free
	Brown rice snack	Gluten-free
	Corn cereal	Gluten-free
	Rice snack	Gluten-free