A review of vitamin A equivalency of ß-carotene in various food matrices for human consumption.
Br J Nutr
; 111(12): 2153-66, 2014 Jun 28.
Article
en En
| MEDLINE
| ID: mdl-24513222
Vitamin A equivalency of ß-carotene (VEB) is defined as the amount of ingested ß-carotene in µg that is absorbed and converted into 1 µg retinol (vitamin A) in the human body. The objective of the present review was to discuss the different estimates for VEB in various types of dietary food matrices. Different methods are discussed such as mass balance, dose-response and isotopic labelling. The VEB is currently estimated by the US Institute of Medicine (IOM) as 12:1 in a mixed diet and 2:1 in oil. For humans consuming ß-carotene dissolved in oil, a VEB between 2:1 and 4:1 is feasible. A VEB of approximately 4:1 is applicable for biofortified cassava, yellow maize and Golden Rice, which are specially bred for human consumption in developing countries. We propose a range of 9:1-16:1 for VEB in a mixed diet that encompasses the IOM VEB of 12:1 and is realistic for a Western diet under Western conditions. For a 'prudent' (i.e. non-Western) diet including a variety of commonly consumed vegetables, a VEB could range from 9:1 to 28:1 in a mixed diet.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Vitamina A
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Aceites de Plantas
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Grasas de la Dieta
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Alimentos Fortificados
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Beta Caroteno
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Suplementos Dietéticos
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Alimentos Funcionales
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Br J Nutr
Año:
2014
Tipo del documento:
Article
País de afiliación:
Países Bajos