Louca, P; Murray, B; Klaser, K; Graham, MS; Mazidi, M; Leeming, ER; Thompson, E; ... Menni, C; + view all (2021) Modest effects of dietary supplements during the COVID-19 pandemic: Insights from 445 850 users of the COVID-19 Symptom Study app. BMJ Nutrition, Prevention and Health , 4 , Article e000250. 10.1136/bmjnph-2021-000250. Green open access