Jul 19, 2026, 4:33 PM
The supplement aisle, sorted by evidence
The global supplement industry clears $150 billion a year. Most of it buys hope. Here is the short list that survives contact with the literature, and how to evaluate the rest.
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Essays on metabolic health, sleep, and how to read the evidence like someone who has been burned before.
Jul 19, 2026, 4:33 PM
Sleep debt is real. Sleep tracking mostly is not.
Your ring cannot measure sleep stages the way a lab can, and your readiness score deserves less of your attention than your bedtime. Here is what to track instead.
Jul 19, 2026, 4:33 PM
Your glucose monitor is teaching you the wrong lesson
Continuous glucose monitors turned a clinical tool into a consumer obsession. Here is what the spikes actually mean, and why the healthiest response to most of them is a walk.
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