The 500-ml HF drink was a commercially available 100% juice (Tropicana Ruby Breakfast Juice; PepsiCo Inc.), which naturally contained 70·5-mg flavonoids (42·15-mg hesperidin, 17·25-mg naringin, 6·75-mg narirutin, 4·3-mg caffeic acid; analysed by the University of Reading), 941kJ (225kcal), 48·5-g sugars, 4-g protein, 0-g fat,