# I Used To Be Vegan

Page: https://stenobird.com/podcast/well-beyond-40-740535/i-used-to-be-vegan
Text version: https://stenobird.com/podcast/well-beyond-40-740535/i-used-to-be-vegan.md
Podcast: [Well Beyond 40](https://stenobird.com/podcast/well-beyond-40-740535)
Published: 2026-03-23T09:00:00+00:00
Episode link: https://tracking.swap.fm/track/YfZO4tERxneauNcW9Fgn/mgln.ai/e/211/traffic.megaphone.fm/ARML8035132772.mp3?updated=1774392797
Audio file: https://tracking.swap.fm/track/YfZO4tERxneauNcW9Fgn/mgln.ai/e/211/traffic.megaphone.fm/ARML8035132772.mp3?updated=1774392797
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JSON: https://stenobird.com/v1/public/podcasts/well-beyond-40-740535/episodes/i-used-to-be-vegan
Duration seconds: 1612

## Resource

Is a low-fat vegan diet costing you muscle mass? I used to be a total cardio junkie and vegan, thinking I was doing the healthiest thing possible until a humiliating body composition test revealed my body fat had skyrocketed to 25%. Today, I am walking you through the physiological breakdown that occurs with chronic endurance training and inadequate protein, explaining why these habits can lead to a "muscle loss cocktail" and metabolic disaster. My goal is to share how shifting to a "muscle first" philosophy, incorporating resistance training, HIIT, and optimal amino acid balance, is the true key to aging powerfully. What you’ll learn: (02:00) Why chronic endurance training combined with a low-fat vegan diet led to muscle loss and increased body fat. (05:02) How prolonged endurance exercise can elevate cortisol and create a catabolic environment when recovery and protein intake are insufficient. (07:41) What research shows about muscle protein synthesis on vegan versus omnivore diets when protein intake is matched. (09:16) Why athletes require more protein than the standard RDA to preserve lean mass and support recovery. (10:52) How skeletal muscle mass directly influences resting metabolic rate and long-term fat burning. (12:13) Why muscle is the body’s primary site for glucose disposal and essential for insulin sensitivity. (15:19) How high-intensity interval training can stimulate mitochondrial growth and improve metabolic health in less time than traditional endurance training. (19:42) Why essential amino acids can act as “muscle insurance,” especially for women over 40 facing anabolic resistance. Love the podcast? Here’s what to do: Subscribe to the podcast. Leave a review. Text a screenshot to me at 813-565-2627 and wait for a personal reply because your voice is…

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## Transcript

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