Podcast: Play in new window | Download
Summary
On episode 541 of 40+ Fitness, Coach Allan sits down with Alan Aragon, a nutrition researcher and educator with more than 25 years in the field, known as one of the most influential voices in the fitness industry’s push toward evidence-based information. Alan wrote Flexible Dieting, a science-based, reality-tested method for achieving and maintaining your optimal physique, performance, and health.
They dig into the continuum of dietary control, why matching your approach (rigid versus flexible) to your own personality matters more than picking the “right” diet, and the concept of discretionary calories that keeps a plan sustainable.
The conversation also covers muscle protein turnover and why protein needs rise after 40, the hierarchy of what matters most about protein intake, why keto is a poor fit for building muscle or endurance performance, and a simple 1-to-10 rating system for daily accountability.
Links
- https://alanaragon.com
Key Takeaways
- Diets only work if you can stick to them. Match your approach, rigid or flexible dietary control, to your own personality instead of forcing a plan that fights how you’re wired.
- Weight change is a function of calories over time, not a single day. A caloric deficit doesn’t need to be hit every single day as long as it nets out by the end of the week, month, or year.
- Flexible dieting is not the same as “if it fits your macros.” It means avoiding all-or-nothing, good-food-versus-bad-food thinking, not eating whatever you want as long as your macros match.
- Discretionary calories keep a diet sustainable. Roughly 10 to 20 percent of intake can come from “fun” foods as long as 80 to 90 percent of the diet is wholesome, an approach Alan calls organized moderation.
- Protein needs rise with age. Muscle protein turnover shifts as sarcopenia (age-related muscle loss) accelerates through disuse, so people over 40 typically need about 0.7 to 1.0 grams of protein per pound of target body weight, combined with resistance training, to prevent or reverse it.
- There is a hierarchy to protein intake. Total daily amount matters most, how protein is distributed across meals through the day matters somewhat, and the exact timing around a workout matters least.
- Keto is a poor fit for building muscle or endurance performance. It works well for short-term weight loss because it removes hyperpalatable food options and naturally cuts calories, but most people can’t sustain strict keto (under 50 grams of carbs a day) long term, and athletic performance depends heavily on carbohydrate availability.
- A simple 1-to-10 accountability rating builds self-awareness fast. Rating each day’s adherence, or checking off a short list of key habits, shows the pattern at a glance: a month full of 8s, 9s, and 10s predicts progress, while a run of 5s, 6s, and 7s explains a stall without detailed food logging.
- Alan’s three strategies to get and stay well: get at least seven hours of good sleep; make resistance training, pushing, pulling, squatting movements, a non-negotiable part of your routine rather than relying on walking alone; and eat the foods you personally enjoy within a healthy pattern, on a schedule that fits your life, instead of chasing trendy meal-timing rules.
“Diets are all effective as long as you stick to them.”
Alan Aragon
Another Episode You May Enjoy
Episode 591 – How to grow your own food with Marjory Wildcraft
