Supply and intake of minerals and trace elements in Bavarian homes for the elderly and adolescents - evaluated by food duplicates and dietary protocols

alimentation collective alimentation humaine bavaria contenido mineral elderly encuestas encuestas nutricionales estado nutricional food intake human feeding institutional feeding jeunesse juventud mineral content nutrition surveys nutritional status nutritive value oligoelementos prise alimentaire (homme) surveys tercera edad trace elements valeur nutritive valor nutritivo youth