human 187 Article 140 Humans 122 female 118 male 109 adult 88 controlled study 87 nonhuman 74 Female 72 article 66 Male 62 major clinical study 49 Animals 42 child 41 United States 38 animal 37 COVID-19 34 food security 32 Adult 31 Food supply 31 middle aged 31 adolescent 30 chemistry 30 diet 30 food intake 29 metabolism 29 feeding behavior 28 questionnaire 28 Child 27 China 27