Plainly written health guides, with the evidence graded
12 guides
Edited by Ines Calderon, editor responsible for the metabolic health section.
A high reading on waking looks like last night's food catching up with you. Usually it isn't — it's a hormone surge that starts hours before you're awake, and it is not the only mechanism that can produce the same number.
Moderate evidence18 Sept 2026
Every wellness roundup calls magnesium the fix for insulin resistance. The primary sources describe something messier: a nutrient that supports insulin signalling, and a mineral that resistance itself burns through faster, moving in both directions at once.
Limited evidence18 Sept 2026
Search this phrase and you get the same recycled list: fatigue, sugar cravings, brain fog, a sudden appetite for carbs. Almost none of that comes from a diagnostic source. Two things that do.
Moderate evidence18 Sept 2026
The shakiness that lands an hour or two after a meal gets called reactive hypoglycemia by almost everyone who has it, and confirmed with an actual glucose reading by almost no one — which turns out to be two different diagnoses wearing one name.
Moderate evidence18 Sept 2026
A body-composition scan can flag real metabolic risk in someone whose scale and BMI both read completely normal — because neither of those numbers was built to measure what actually predicts it.
Moderate evidence18 Sept 2026
Meeting three of the five checks earns the label, but which three you meet, and whether a number you already treated with medication still counts, changes what the diagnosis is actually telling you.
Strong evidence18 Sept 2026
Prediabetes diet advice online is mostly generic clean eating with a diagnosis attached. The trial evidence says something narrower: which part of that advice actually moves your risk, and which part is noise around it.
Strong evidence18 Sept 2026
It's arithmetic anyone can do from a routine lipid panel, and online it circulates as a stand-in for an insulin-resistance test. No major guideline body has adopted a cutoff for it, and that gap changes what a single number from your own labs can honestly tell you.
Limited evidence18 Sept 2026
Every list names the same three suspects — weight, inactivity, genetics — without saying which one does the actual damage, or whether it happens through the same mechanism at all.
Moderate evidence18 Sept 2026
The lab slip says 'normal' or it doesn't, but the number sits on a continuum most people never see, and the cut points depend on which body drew the line and why.
Strong evidence18 Sept 2026
A fasting glucose gives you one number at rest, and an A1C averages three months of it. This test asks something neither can: how fast your body actually clears glucose once it has real work to do.
Strong evidence18 Sept 2026
A HOMA-IR score can read 'optimal' on one calculator and 'resistant' on another from the exact same blood draw. The formula isn't the confusing part — the missing agreement on what the number means is.
Moderate evidence18 Sept 2026