This statement is indeed false. Using a sweetener on fruits dates back as far as ancient Egyptians. This ancient civilization would use honey on different nuts and fruits for worshiping their gods and goddesses. In other areas of the world, the use of sugarcane came to fruition and around 950 AD the Arabs invented caramel.
Each one of these civilizations used either honey or sugar on different fruits to produce a candy-like item. Finally, in the middle ages, candy became popular as well as fruit candies which—you guessed it—combined sugar and fruit.