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You're Eating More Protein Than You Need | Prof. Leigh Breen

24 août 2026 · 54 min

Notes de l’épisode

Muscle gain is an essential part of living longer and healthier - but there’s a lot of conflicting advice online. So how do you make resistance training and protein intake easy?

In this episode I speak to Leigh Breen, Professor of Translational Physiology, who breaks down the simple science of optimising muscle health - and explains how muscle affects the health of your whole body.

Timestamps

(0:00) Intro - What muscle really does for your health

(2:32) What actually happens to your body after you exercise?

(4:30) How muscle and exercise improves brain health

(8:37) The gut-muscle axis

(12:13) Why optimising for protein may be a mistake

(14:24) How much protein do we really need?

(17:25) Can too much protein cause gut problems?

(19:18) How effective is collagen protein?

(28:46) The role of protein in the GLP-1 economy

(31:48) Why plant protein is just as good as animal protein

(35:45) GLP-1 impacts on muscle loss

(42:20) Weight independent benefits of weight loss drugs

(45:22) How age affects muscle strength

(48:08) Can you build back muscle after long periods of inactivity?

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About Dr Karan:

Dr. Karan Rajan is a doctor, author, Founder of LOAM Science and Chief of Science at Throne Science, dedicated to making health and medical science accessible to all. Through evidence-based analysis, he addresses topics such as gut health, brain health, and healthy lifestyle choices, while dispelling common medical myths with a touch of dark humor.

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