The study also found that litchis, particularly the unripe ones, contain a certain amino acid that affects blood glucose levels
severely. "Parents in affected villages report that during May and June, young children frequently spend their day eating litchis in the surrounding orchards; many return home in the evening uninterested in eating a meal," the researchers wrote. The children are then rushed to the hospital. Most arrive unconscious or have seizures in the middle of the night or early morning.