... All studies included repeated exposure to vegetables or fruits: 4 studies tested repeated exposure of both vegetables and fruits (10,11,16,24), 10 tested repeated exposure of vegetables (9, 13-15, 17, 20, 22, 25, 26, 28), and 2 studies tested repeated exposure of fruits (12,21). The vegetables used for repeated exposure included celeriac (9), swede (9), turnip (9), green beans (10,16,20,24,25,28), artichokes (10,13,26), peas (11,17,24,25,28), carrots (14,17,20,24,25), spinach (20,24), squash (17,24,25), broccoli (10,20), cauliflower (10), parsnips (14,20), zucchini (14), sweet potato (14), potato (17), and "other veg" (15,22) ( Table 1). The fruits used for repeated exposure included banana (10,11), apples (10,12,21,24), plums (10), prunes (24), pears (10,12,24), peaches (12,16,24), and "other fruit" (12). ...