Table A1.

Comparison of the percent of products containing individual ingredients from the period before the pandemic was announced and from the period after its announcement using the U Manna-Whitney test (with continuity correction).

Ingredient	Before Pandemic			During Pandemic			p Value
	Median	Q1	Q3	Median	Q1	Q3
Vitamin C	0.36	0.21	0.50	0.69	0.62	0.75	<0.001
Zinc	0.25	0.12	0.42	0.60	0.55	0.67	<0.001
Vitamin D	0.27	0.14	0.41	0.62	0.54	0.69	<0.001
Selenium	0.21	0.08	0.40	0.57	0.48	0.64	<0.001
Potassium	0.04	0.02	0.07	0.59	0.53	0.67	<0.001
Iron	0.21	0.06	0.38	0.57	0.50	0.64	<0.001
Vitamin B6	0.32	0.20	0.48	0.65	0.56	0.69	<0.001
Folic acid	0.25	0.11	0.40	0.60	0.54	0.66	<0.001
Pantothenic acid	0.26	0.10	0.40	0.62	0.53	0.66	<0.001
Magnesium	0.26	0.13	0.43	0.60	0.53	0.66	<0.001
Biotin	0.26	0.10	0.41	0.61	0.53	0.66	<0.001
Calcium	0.22	0.10	0.39	0.58	0.49	0.65	<0.001
Vitamin E	0.26	0.13	0.42	0.60	0.54	0.66	<0.001
Vitamin B12	0.29	0.15	0.43	0.60	0.55	0.66	<0.001
Niacin	0.29	0.13	0.43	0.62	0.53	0.67	<0.001