Otto Invenius, a Finnish biathlete, undertook an extraordinary challenge last spring by skiing 100 kilometers on some of Finland's most demanding trails in Ylläs, relying only on candy for sustenance. Before starting his journey, he collected over 6000 kilocalories worth of various candies and sweet treats from a store, including soft fruit candies and liquorice pipes. The task proved to be both physically demanding and mentally taxing, revealing the challenges of maintaining energy levels on a sugar-only diet during such a strenuous activity.

As Invenius progressed, he reported craving real food, expressing his delight in a future meal of traditional Finnish pastries, but he continued on despite feeling the effects of his limited diet. At the 60-kilometer mark, after hours of skiing, he acknowledged the struggle of completing the journey fueled only by sweets, yet he managed to maintain a surprisingly positive outlook throughout the endeavor. His experience highlights both the physical endurance required for extreme sports as well as the psychological aspects of undertaking such unconventional challenges.

Invenius, who previously secured an impressive 11th place finish in the Olympic normal distance biathlon, shared that despite moments of doubt during his sugary journey, he was pleasantly surprised by his overall performance. This unique and entertaining feat not only served as a test of his skiing abilities but also sparked interest in how unconventional training and nutrition methods can impact athletic performance.