Dumoulin indicates that he has also made huge mistakes with regard to nutrition. "In 2015 I did my diet a bit by feel. Then I rode a very good Vuelta a Espana. That's why I continued with it. The only problem was that I didn't consume enough fats. This meant that in the last years of my career I was no longer able to deliver the strength that I could muster in the years before. A test showed that I had the testosterone level of a little girl."
Nowadays, the teams in the peloton know a lot more about nutrition, as the former winner of the Giro also indicates. "In fact, that philosophy has been completely debunked. The gain is a lot greater if you burn a lot of carbohydrates within a certain period of time. So it's actually the exact opposite of what people, including me, initially thought."
"In recent years the level has risen so enormously in the peloton and there is only one real explanation for this: nutrition. In 2015, the
Jumbo-Visma team still trained on an empty stomach, when they immediately had the worst spring they have ever had. Yet at a certain point they became pioneers in eating as many carbohydrates as possible before training."