USDA Database. 2018. National Nutrient Database for Standard Reference Legacy Release. 09040, Bananas raw. (105 calorías en 1 pieza de 118g)
USDA Database. 2018. National Nutrient Database for Standard Reference Legacy Release. 20445, Rice, white, long-grain, regular, unenriched, cooked without salt.(0.6 g de fibra en 1 taza de 158 g (1 taza) de arroz cocido)
USDA Database. 2018. National Nutrient Database for Standard Reference Legacy Release. 11457, Spinach, raw (34 µg de ácido fólico en 1 taza de 30 g).
USDA Database. 2018. National Nutrient Database for Standard Reference Legacy Release. 13020, Beef, retail cuts, separable fat, cooked (1.08 mg de hierro en 100g, 1,24mg de zinc en 100g)
