Methodology
Supplements That Actually Matter for Recomposition
Francesco Zen, founder of ZTraining · Last updated June 19, 2026
The shortlist
- EAA, for intraworkout recovery and as a digestion-free snack.
- Creatine, for both strength and cognitive performance.
- Vitamin C, for general support.
- Vitamin D3, for general support.
Why the list stays short
Most of what actually drives body recomposition comes from nutrition, training, and recovery being set up correctly, not from a long supplement stack. These four are the ones worth the investment, everything else is far lower priority.
Related: EAA correction: fixing incomplete protein · EAA vs BCAA, which is better?
Francesco Zen is the founder of ZTraining and ZLIFE, with 18 years of coaching experience working with executives across the UK, US, and UAE. He built Mr Z, an AI coach trained on his methodology to bring the same approach to a wider audience.