How Your Metabolism Actually Works

8 min read·Updated July 2026

Protein on a GLP-1: How Much, and Why It Matters So Much

When appetite drops, protein is the first thing to fall off the plate — and the one macro you can least afford to lose. Here's how to hit your target.

Nutrisense vs Signos vs Levels: Which CGM App?

Nutrisense vs Signos vs Levels compared: three app-based CGM programs for non-diabetics. Nutrisense for coaching, Signos for weight loss, Levels for analytics. Which fits you in 2026.

All guides

13 more in Metabolism

6 min read·Updated July 2026

Fatigue and Dehydration on a GLP-1: An Underrated Pair

Tiredness on a GLP-1 is often blamed on the drug itself — when the real culprits are under-eating and not drinking enough. Here's how to tell the difference.

8 min read·Updated July 2026

Insulin Resistance Explained: Causes, Effects, and What to Do

Insulin resistance is one of the most common metabolic dysfunctions — and one of the least understood by people who have it. Here's what the science shows about causes, consequences, and interventions.

7 min read·Updated July 2026

Is Slow Metabolism Real? What the Research Actually Shows

Most people attribute weight gain to a slow metabolism. The science is more nuanced — true metabolic rate differences between individuals are smaller than commonly believed, but they're real.

Is a CGM Worth It Without Diabetes?

An honest, even-handed answer to whether a continuous glucose monitor is worth it for a non-diabetic: who benefits, the real costs, and a clear verdict.

How to Use a CGM for Weight Loss

How to use a CGM for weight loss: a practical, step-by-step guide for non-diabetics. Learn your baseline, find your spikes, run A/B tests, and keep the lessons.

9 min read·Updated May 2026

Sleep Deprivation and Weight Gain: The Hormone Link

One night of 4-hour sleep raises ghrelin 15–28%, drops leptin, and shifts food preference toward calorie-dense options. Multiply that over years.

10 min read·Updated May 2026

Stress, Trauma, and Weight Gain: Why History Matters

Adverse Childhood Experiences correlate with adult obesity in a dose-dependent pattern across multiple cohorts. The biology underlying this is well-mapped — and it changes what compassionate treatment looks like.

10 min read·Updated May 2026

Adaptive Thermogenesis: Why Metabolism Slows When You Diet

Lose 10% of your body weight and your resting metabolic rate falls by more than the smaller body would predict. That gap has a name — and three decades of research mapping how it works.

Is 'Metabolic Damage' Real? What the Research Says

Adaptive thermogenesis is documented and persistent. 'Permanent metabolic damage' is mostly myth. The distinction matters because it changes what someone with a long dieting history can reasonably expect.