What did the Duke University (2022) study reportedly conclude about metabolism between ages 20 and 60?

Mona SharmaCelebrity nutritionist and wellness advocate

It’s Not Your Diet. It’s the Stress. | Ben Azadi on Metabolic Healing

22 Oct 2025 · 0 min

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In this interview, Mona Sharma talks with metabolic health expert Ben Azadi about common misconceptions surrounding metabolism and aging. Ben cites a 2022 Duke University study showing that metabolic rate remains largely unchanged between ages 20 and 60, debunking the myth that metabolism inevitably slows with age. He emphasizes that the key factor influencing metabolic health is the amount of lean muscle mass a person maintains; building and preserving muscle can keep metabolic function youthful even into advanced age. The conversation frames this insight within a broader discussion on how stress, rather than diet alone, interferes with metabolic processes, urging listeners to focus on muscle‑building and stress‑management strategies for metabolic healing.

Questions this video answers

That there are no significant changes in the metabolism between ages 20 and 60.

I used to be a big believer that my metabolism was broken.
Yeah. It's not broken. It's being interfered with. A Duke University study that came out in 2022. What it said at the conclusion of the study that between ages 20 and 60 years old, there are no significant changes in the metabolism. So when we hear about I'm 40, my metabolism slowed down. Science is showing that isn't happening. If you work on building lean muscle, you could be 95 years old with the same metabolism as when you are 25 years old.
That's incredible.
Yes.
But even that reflection, Ben, honestly, that's what people need to hear more of the.