In recent years, Nieky has developed a line of nutritional supplements suitable for martial arts and fitness, together with his nutritional advisers, trainers and manufacturers from his carefully built-up expertise. Nieky Holzken has launched its line of nutritional supplements under the name Natural Nutrition by Nieky Holzken. In the development of Natural Nutrition by Nieky Holzken concentration, strength, flexibility and endurance were central. Also, central to the development was that the products, just like the kickboxing name of the namesake, should be ‘Natural’. Natural Nutrition by Nieky Holzken guarantees very high-quality natural products, which are offered in this webshop.