AMA 04 - Cortisol, Seed Oils, Insulin, Biggest Loser and More

In this listener Q&A, Layne dives deep into your most-asked questions on training, nutrition, and practical science. As always, he breaks down the actual research and gives no-BS, evidence-based takeaways you can actually use.

Topics covered in this episode:

• Does cortisol cause fat gain? Plus the impact of low-calorie dieting on cortisol

• Sucralose and gut health – new research on dysbiosis, glucose/insulin levels, and the role of Blautia

• Do seed oils increase inflammation? Comprehensive look at linoleic acid studies, systematic reviews, and clinical trials

• Insulin, high-glycemic carbs, and fat storage – what do overfeeding studies actually show?

• Is “natural” always better? The naturalistic fallacy explained

• Is resistance training safe and effective for kids? What the science says for youth training

• Creatine dosing for women vs. men – do women need a different amount?

• Does cardio interfere with building muscle? Latest meta-analyses on concurrent training

• Layne’s honest take on The Biggest Loser Netflix documentary

• And more!