Yes, you can eat fruits at night. Avoid fruits just before bed, keep a gap of 1 hour. Maintain a gap of 1 hour. If you get a late night sweet craving, it is better to munch on fruits low sugar fruits strawberries, Kiwi, berries etc than chocolates, ice creams, or packaged cake bites. Fruits will provide lesser calories , will also provide fibers and other nutrients as well.