Insulin: Fat Storage or Muscle Tool?

Insulin: Fat Storage or Muscle Tool?

March 22, 2026 · 45 min · Episode 124

About this episode

This episode discusses the misunderstood role of insulin in muscle building and fat storage, particularly in midlife.

Insulin Isn’t the Enemy: Why Carbs Might Actually Help You Build Muscle Show Notes Before we dive in, a couple of quick reminders. My Muscle Month program starts March 29, and it only runs once a year. If you’ve been thinking about joining, this is the time. The program walks you through exactly how muscle is built and protected in midlife — including insulin, carbohydrates, mTOR, AMPK, and how to actually use these tools to your advantage. You can join at musclemonth.com.The cost is $525, and if you’d prefer to split the payment just email me at joanne@joannelee.com and I’ll send you the separate link since the new website isn’t showing that option yet. Also, there’s currently a 20% discount on 5-Amino-1MQ and SLU-PP-332 on the new website. Use the code DAISY (named after our new puppy) at checkout. The code runs until April 1, and everything is available at www.joanneleestore.com. Now onto today’s topic. In this episode I talk about insulin, and why it has been given such a terrible reputation in the health and fitness world. For years we’ve heard that carbohydrates spike insulin, insulin stores fat, and therefore carbs must be the problem. And while there is some truth buried…

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