Episode 510: Layne Norton, PhD: The Best Diet to Follow + Is Diet Coke Actually Bad For You

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Dec 12, 2025

In this insightful discussion, Dr. Layne Norton, a nutrition scientist and founder of BioLayne, shares his expertise on effective dieting. He emphasizes that there’s no one-size-fits-all approach; instead, adherence to a personally sustainable diet is key. Layne tackles common misconceptions about diet soda and artificial sweeteners, revealing their potential benefits for weight loss while addressing gut health concerns. His evidence-based perspective challenges popular diet myths and encourages listeners to prioritize personalized nutrition.

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INSIGHT

Adherence Beats Diet Type

Long-term weight loss success depends more on adherence than on diet type.
Whatever dietary strategy you can sustain is the best one for you.

ANECDOTE

Pizza Moment Changed His Approach

Layne describes how 'eat clean' led him to binge on weekends and a pizza incident changed his approach.
He switched to tracking calories and macronutrients and then had no problems with bingeing.

ADVICE

Pick What Fits Your Life

Choose a dietary pattern that fits your preferences and lifestyle to improve sustainability.
Let form and meal frequency be flexible so you can stick with the plan long-term.

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Ever wondered which diet actually works? Or if artificial sweeteners are as dangerous as the internet makes them sound?

In this Fitness Friday episode, I sat down with nutrition expert Dr. Layne Norton to cut through the diet noise. We break down why personalization beats every trend, what the research really says about diet soda and sweeteners, and why the “best diet” looks different for every person.

If you want straight answers, not fear-based headlines, this conversation will challenge a lot of what you think you know.

Dr. Layne Norton is the founder of BioLayne, a company built on science-driven coaching and real-world experience. He has coached more than 70 athletes to pro status and helped thousands rethink nutrition with evidence instead of hype. Layne holds a BS in Biochemistry and a PhD in Nutritional Sciences, where he trained under one of the leading researchers in protein metabolism.

What We Discuss:

(00:00) The truth about the best diet for weight loss
(00:38) Why adherence drives long-term results
(03:29) How to find the diet style you can actually sustain
(06:56) Diet soda and real weight-loss evidence
(08:25) Artificial sweeteners and gut health research
(10:41) What aspartame really breaks down into

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Find more from Jen:

Website: www.jennifercohen.com

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Find more from Layne Norton, PhD:

Website: www.biolayne.com

Instagram: @biolayne