How this started
A routine physical came back with a fasting glucose result that wasn't a diagnosis but wasn't nothing either — the kind of number a doctor describes as “something to keep an eye on” before moving on to the next appointment. That's a deeply unsatisfying place to be left. You're not sick enough for a treatment plan, but you're worried enough to start typing things into a search bar at 11 p.m.
What I found there was mostly garbage. Two kinds of garbage, specifically: clinical pages written for people who already have diabetes, which didn't describe my situation, and supplement pages promising to fix a problem I couldn't even measure. Nothing in between explained, in ordinary language, what was actually happening in my bloodstream after lunch.
So I bought a continuous glucose monitor and wore one for 90 days. Not as an experiment with any scientific validity — a single person with no control group proves nothing. But it did something more useful for me than a study would have: it turned an abstract number into a curve I could watch respond to breakfast, to a walk, to a bad night's sleep. Oatmeal did something I didn't expect. Eating the salad first did something I really didn't expect. And a supplement I'd bought on the strength of a very convincing video did, as far as I could see, nothing at all.
What I am, and what I'm not
I'm not a doctor, a dietitian, a nurse, a pharmacist or a researcher. I have no medical credentials of any kind, and you should not take anything on this site as medical advice. I've said that on every page for a reason: in a category this full of people implying credentials they don't have, being clear about not having them is the honest move.
What I am is a reasonably careful reader with an unusual amount of patience for supplement facts panels. That turns out to be a rarer skill than it should be. Most of what's published about these products — including most things labelled “review” — is a rewrite of the manufacturer's own sales copy by someone who never looked at the label. Reading the label first is a low bar. I just clear it consistently.
How I rate a supplement
Every product review on this site scores six things. The overall number is their average, and I publish the individual scores so you can weight them yourself — if the refund policy matters more to you than the marketing, ignore my average and look at the rows.
| What I score | What earns a high mark |
|---|---|
| Formula rationale | The ingredients have a plausible mechanism for the thing being claimed, and they're the right ingredients for that mechanism — not stimulants padding out a glucose formula. |
| Dose transparency | Every active is listed with an exact amount. Proprietary blends lose points automatically, because they make the product impossible to compare against the research its own marketing cites. |
| Evidence strength | Human trials rather than cell-culture studies, replicated rather than one-off, and at doses the product actually delivers. |
| Value for money | Cost per day against what comparable ingredients cost bought separately. A generous dose at a fair price beats a cheap bottle of nothing. |
| Refund policy | Long enough to actually evaluate the product, clearly worded, and administered by someone with an incentive to honour it. |
| Marketing honesty | Does the sales page describe the product accurately? Fake scarcity timers, invented mechanisms and testimonials that can't be verified all cost points here. |
Two rules I hold to. First, I read the supplement facts panel before I read the sales page, because once you've watched the video it's harder to see the label clearly. Second, I publish the drawbacks. A review with no cons isn't a review, it's an ad with a star rating on it — and if you can't find a single thing wrong with a product you're earning a commission on, you weren't looking.
How this site makes money
Affiliate commissions. If you buy a product through a link here, I earn a percentage from the seller, and you pay exactly the same price you would have paid otherwise. That's the whole business model — no ads, no email list sold to anyone, no sponsored content, no manufacturer paying for a placement or a score.
I'd rather be upfront that this is a conflict of interest than pretend it isn't one. It is. My defence is what's actually written on the pages: the Gluco6 review I earn commission on gives it 2 out of 5 for dose transparency, tells you the biggest package is the wrong one to buy, and lists five categories of people who should skip it entirely. Judge the incentive by the output. Full disclosure here.
A standing request
If something on this site is wrong — a mis-stated dose, a study I've read too generously, a price that's changed — I want to know. Corrections get made and dated rather than quietly edited. In a niche where most pages are abandoned the moment they rank, keeping things accurate is most of the job.
The disclaimer that matters. Blood sugar is a medical issue and this site is not a medical resource. Nothing here diagnoses, treats, cures or prevents any disease. If your glucose is high, get tested and get a professional opinion — and never change or stop a prescribed medication because of something you read on the internet, this site emphatically included.
Start where I'd start
If you're here because of a number on a lab result, skip the supplement pages for now and read the main guide first. It explains what a spike is, what a normal curve looks like, and which levers actually move it — ranked by how much they matter.