Zef Eisenberg: Maximuscle Focus: Sports nutrition Our experts We are a team of writers, experimenters and researchers providing you with the best advice with zero bias or partiality. Zef Eisenberg Age: 33 Company: MaximuscleEisenberg sees Maximuscle as an all-round training and nutrition education service for his customers. The Watford-based business has a number of high-profile clients, ranging from the England cricket team to the RFU. Turnover stands at an impressive £21m. Share this post facebook twitter linkedin