 In a January 2011 interview with GQ he announced he is working on releasing his own range of vitamins and supplements . He has also written an autobiographical fitness book entitled Train Like an Action Hero : Be Fit Forever being published in Sweden ( by Bonnier Fakta ) on 9 August 2011 , offering tips he learned over the years to work out in various situations ( with a busy schedule and a lot of traveling ) . When in Los Angeles he trains at the Equinox Gym in Westwood and when at home in Marbella , Spain , he trains at the Qi Sport Gym in Puerto Banús . Dolph does , however , also like to spar and practice his karate in the gym to keep in top shape aside from weight lifting . He cites dead lifting and squats as the best exercises for muscle building . Lundgren is not a heavy drinker , but has professed on many occasions to being fond of tequila and cocktails , citing his knowledge in chemical engineering as " making really good drinks " . On 9 September 2014 , Lundgren published Dolph Lundgren : Train Like an Action Hero : Be Fit Forever , a book which contains a detailed account of his earlier life and troubles . He cites a better quality of life as having inspired him to maintain his physical fitness . 
