Nutrients in Fresh Peeled Oranges and Grapefruit from California and Arizona

Naval oranges, Valencia oranges, and grapefruit, representative of the California and Arizona citrus crop, were collected over three consecutive growing seasons, and the nutritional composition of their juices was determined. Measured as per cent of the U.S. RDAs, folic acid, magnesium, vitamin A (oranges only), vitamin B6, thiamin, and ascorbic acid are all supplied in greater proportion than the calories present, while niacin and calcium are supplied in approximately proportionate amounts.