Possible Clues:

• Be right alongside one repeatedly having complaint
• Disease (lack of vit. B1)
• A couple of fruit sounds enough to make one sick
• Inflammatory disease - I got caught by North African one
• Asian disease caused by a dietary deficiency
• Fruits said to cause disease
• Is that what you get from too- or two - little fruit?
• Report of a couple of fruits producing disease
• Sounds as if one pair of fruit is enough to make one sick
• Even with double the amount of fruit, by the sound of it, there's dietary deficiency