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If you are what you eat, Jan van Berkel is a geek. Even in the optimistic guild of elite athletes. The Zurich Unterländer has finally undergone a radical change: it hardly eats carbohydrates. Thus, after his decision to break with the traditional diet of most top athletes, he has already given parents a load of "forbidden food". The pasta was one of rice or sugar (refined).
Vital looks at the 32-year-old man at the meeting and therefore very different, as some nutritionists describe the consequences of such a diet: minimal performance reduction, bad maximum for health. However, while listening to van Berkel talk about his new daily eating routine, it must be said that it seems to work very well with this particular form of nutrition – yes, Van Berkel boasts of being more effective now.
For one thing is important to him: "I do not pocus and do not do anything dangerous for my body." His confidence and knowledge are based in Dan Plews. The New Zealander (35 years old) is a doctor in sports physiology, one of the best in the world in his age group in the Ironman and his trainer. Plews unites the world of facts with the pioneering spirit of the coach and the top athlete. This combination is almost unique and makes Van Berkel's case so exciting.
As fast as any Swiss
It is Plews who advised his protégé to radically change his eating habits. Although Van Berkel finished second twice at the Zurich Ironman twice (2012/15), he had trouble with every long distance use at the end with a big loss of performance.
Since he eats high-fat foods and is mainly guided by his fat reserves, he overcame these performance losses. As a result, he fought that same month of April in Texas on the Ironman distance, stayed in 7: 48.40 under the magical 8 hours and replaced Ronnie Schildknecht as the fastest Swiss ironman.
These experiments also confirm to van Berkel that his ketogenic diet is ideal for him. This is called because van Berkel no longer draws energy mainly from fats, proteins and glucose, but from fat and glucose substitutes made by the body (ketone bodies). But: Until now, there are no studies with a large number of cases, which prove the benefits of this type of nutrition for elite athletes.
The Importance of Fat Conservation
The science of current nutrition, on the contrary, is the only way that a solid amount of carbohydrate a day can provide an ideal performance . How "solid" depends on the athlete, but can easily be half the calories consumed per day. That is why van Berkel estimates that 80% of Ironman pros eat in the traditional way – about a fifth of them in the same way as him. Trend, however, more and more.
The main reason for this: For athletes whose competition lasts for many hours, the importance of fat burning increases. The body still has so many reserves, even with athletes as well trained as van Berkel, that it can use them – and thus serves as a welcome energy storage in addition to the calories provided in the form of carbohydrates.
However, many lay people make false associations when they hear about a "fat diet." They believe that these have resulted in more weight or body fat. The reverse is the case (and proven by many representative studies).
Even the well-trained van Berkel lost after his conversion still big – two kilos. But he put a kilo of muscle without having more weight than before Esszäsur. The delicate thing about nutrition, however, remains: Van Berkel is justifiably convinced of his experience, his new well-being was mainly due to the new diet. In the end, however, he was able to drive him despite his new regime. After all, what factor has an effect on performance and well-being can not be demonstrated by science.
More importantly, Van Berkel considers two other aspects: "Eating should never become a religion". And: "I am aware that I am privileged, that is, I have enough food to eat and even what I need to eat Take his approach. Van Berkel also does not know how many calories he consumes or how much he consumes. His feeling of hunger leads him. It does not have scales – and if he receives a piece of cake at a banquet, "I will eat it. I am not a fundi.
The beloved partner's Cheesecake: Past
He's been eating "a lot more consciously" since the conversion he finds positive – and yet he's fairly honest and knowledgeable enough , that he says at one of his new main courses: "Of course, I know that it takes a lot of water to make a lawyer. I have to live with this dichotomy. But his meat consumption was reduced with his keto diet. After all, he does not want to balance the missing calories with a lot more protein (but rather with healthy fats).
As a first step in his transition, he first had to learn what he is now delivering and how he is preparing, he describes as a welcome complementary education. And that he does not understand this way of life as a renunciation, help in the long run. "Otherwise, I could never lead her for a long time." But he misses the cheesecake of his partner, famous among his friends. So he eats a lot of Philadelphia cream. Happy everyday.
(Tages-Anzeiger)
created: 27.07.2018, 23:20
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