Understanding Vita-Strath Supplement with 6 short videos
​courtesy & produced by Estie Schreiber (via you tube)

The Human Body | 2.47 minutes

Supplementation, how do we need them? | 1.40 minutes

How does yeast is found to be beneficial to human | 1.57 minutes

History and Clinical Publications | 2.18 minutes

Clinical trials | 1.30 minutes

Efficacy | 2.15 minutes