The Best Glucose Meter Is the One With Proven Accuracy Data
The best glucose meter isn't a brand. Medicare covers 300 test strips every three months for insulin users, and 100 for everyone else.
Sameer Patel — Founder & Editor
Sameer Patel is the founder and editor of My Medicine Advisor. He is not a doctor or medical professional — before starting this site he worked in banking, and he now researches and edits health information full-time.
He started My Medicine Advisor to make clear, well-sourced health information freely available to anyone. Every article is researched from recognised authorities such as the WHO, CDC, NIH, and NICE, drafted with the help of AI tools, and edited by hand, with sources linked so readers can check them. The calculators on the site use established, published formulas, each one named so you can look it up yourself.
My Medicine Advisor is currently a one-person operation with no clinical review panel, and the site is open about that. If you're a qualified clinician or researcher interested in reviewing content, Sameer would genuinely like to hear from you via the contact page.
Your CGM vs a finger stick, and how to know which one to trust
CGM vs finger stick gaps are usually two compliant devices, not one broken one — sensors read interstitial fluid, which trails blood by minutes.
Know What Each OTC CGM Will and Won’t Show You
Every OTC CGM caps what it displays. Lingo reports only 55–200 mg/dL — outside that, the app shows no number at all.
Glucose vs A1C made clear when the two numbers differ
Glucose and A1C measure the same sugar on different clocks: one captures this morning, the other 3 months, with the last 30 days weighing heaviest.
Which of the four types of glucose tests is right for you
Types of glucose tests differ more than patients expect. An A1C of 6.8% can read
6.4-7.2% on a repeat of the same blood sample.
Your glucose in urine result, and the clear next step
Glucose in urine points most people straight to diabetes. That kidney threshold, quoted as 180 mg/dL, is reported from 54 to 300 in diabetes.
Know what happens during your oral glucose tolerance test
The oral glucose tolerance test measures two hours of your body clearing a 75g sugar load — and roughly 20% of results come back non-diagnostic.
Know how long to fast before a glucose test, and when you don’t
Fasting before a glucose test means at least 8 hours, water only. But two of the five common glucose tests require it — the other three don't.
High blood sugar in non-diabetics and six overlooked causes
High blood sugar without diabetes usually has a plain explanation — and one of the six is simply how your test was taken. Fruit residue alone can skew it.
Low blood sugar symptoms and the first number to check
Low blood sugar symptoms follow a sequence: adrenaline first, then the brain running short of fuel. That order is why confusion is the more serious sign.