Fit Man Project

Catharine Arnston didn't start out as a scientist. She was a Canadian-born business executive turned interior design publisher who stumbled into the world of nutrition after her sister was diagnosed with breast cancer. Seventeen years later, she has a PhD in biology, runs ENERGYbits, and is one of the most compelling voices on algae, mitochondrial health, and what it actually takes to age well without a medicine cabinet full of supplements. This one goes deep. Josiah and Catharine cover everything from the science of how your cells generate energy to why most spirulina on the market is basically worthless. If you've ever been confused about peptides, mitochondria, or why your energy tanks after 40, this episode breaks it down in plain language. Timestamps: 0:00 - Welcome and intro 0:27 - Catharine's origin story: growing up without money, without parents, and learning early to make things happen 4:23 - The hard times that build driven people, and the challenge of raising kids in abundance when struggle m