AMA 03 - New Food Guide Pyramid, Calories, Seed Oils, Hypertrophy and More

About this episode

In this episode, Layne Norton addresses various debated topics in nutrition and training, providing evidence-based insights on the new food guide pyramid, calorie consumption, protein intake, and dietary fats.

In this wide-ranging Q&A episode, I tackle some of the most debated topics in nutrition, training, and health — and separate what the evidence actually shows from what’s just noise. We start with the new food guide pyramid and whether it reflects the current science, then zoom out to look at how the U.S. compares globally in calorie consumption. From there, we dig into protein intake — how much is really needed to support muscle mass and function in healthy adults, and what the best human data actually tells us. I spend a significant portion of the episode unpacking saturated fat, cardiovascular disease, and cholesterol. We walk through randomized trials, systematic reviews, Mendelian randomization data, and mechanistic evidence to explain why LDL and apolipoprotein B matter, how dietary fats influence cardiovascular risk, and why some popular narratives around butter, seed oils, and lipid oxidation don’t hold up when you zoom out to the totality of human evidence. I also answer practical questions on fat loss for people who feel burned out by calorie counting — what to do if tracking feels like a full-time job, where the most reliable calorie data actually comes from, and…

People in this episode

Host: Layne Norton

Topics covered

• nutrition
• training
• health
• calorie consumption
• muscle mass
• cardiovascular risk
• weight loss

Keywords

• food guide pyramid
• calories
• protein intake
• saturated fat
• cardiovascular disease
• weight loss
• hypertrophy
• insulin
• seed oils

Mentioned in this episode

Organizations: U.S., LDL, apolipoprotein B, Mendelian randomization, cardiovascular disease, butter, seed oils, insulin, glucose

More episodes of The Dr. Layne Norton Podcast

• Protein Deep Dive · June 8, 2026 · 1h 7m
• Seed Oils: The Evidence-Based Deep Dive · May 25, 2026 · 1h 15m
• Bill Campbell: The Physique Enhancement Professor · May 11, 2026 · 1h 39m
• AMA 04 - Cortisol, Seed Oils, Insulin, Biggest Loser and More · April 27, 2026 · 55 min
• Blood Flow Restriction Training with Jeremy Loenneke · April 13, 2026 · 2h 19m
• The Most Overhyped Supplements of All Time · March 30, 2026 · 56 min