Plain-language explainers that go deeper than a navigator can. Each one is written to published clinical guidance and says clearly where the free route is.
What the USPSTF, NIH, NHS and Health Canada say about multivitamins, the groups who may benefit by age and diet, and the risks to check before you buy.
Nutrition · 9 min readUpdated 20 Oct 2026How much vitamin D the NHS, Health Canada and US guidance advise in winter, the upper limit, who should ask a clinician first, and how to convert micrograms to IU.
Nutrition · 9 min readUpdated 20 Oct 2026A simple rule for iron: test first unless a clinician has advised it, which tests to ask for, who needs a cause found, and how pregnancy advice differs by country.
Nutrition · 8 min readUpdated 20 Oct 2026The vegan supplements nearly everyone needs (B12, vitamin D, iodine), the one to test before taking (iron), what to get from food, and free testing in each country.
Nutrition · 9 min readUpdated 20 Oct 2026Why IgG food sensitivity tests aren't allergy tests, what allergy bodies say about them, and the tests and free routes that actually help in each country.
Tests · 7 min readUpdated 20 Oct 2026What CBT-I involves, why guidelines put it before sleeping pills, who should see a clinician first, and the free apps and NHS routes in each country.
Mental health · 7 min readUpdated 20 Oct 2026What an employee assistance programme offers, how many free sessions to expect, what your employer can and can't see, and the free options if you don't have one.
Mental health · 7 min readUpdated 20 Oct 2026How burnout (a work problem, not a diagnosis) differs from depression, the signs that point beyond work stress, and the free help that fits each in every country.
Mental health · 8 min readUpdated 20 Oct 2026Why the blood test needs gluten in your diet, how much and for how long, what home kits measure and miss, and how to get tested free in each country.
Tests · 6 min readUpdated 18 Oct 2026When a GP will order a free thyroid test, what the lab measures, how long the appointment, blood test and NHS App results take, and when a private kit is worth it.
Tests · 6 min readUpdated 18 Oct 2026What provincial plans pay for (visits, dietitians, surgery) and don't (Wegovy, Zepbound, Saxenda), private plan coverage, cash prices and the new generic semaglutide.
Weight · 5 min readUpdated 18 Oct 2026The NHS Mounjaro rollout phases, who gets Wegovy through specialist services, what Wales, Scotland and Northern Ireland offer, and what private prescriptions cost.
Weight · 6 min readUpdated 18 Oct 2026What the drug licences say about a BMI of 27 with high blood pressure, and why Medicare, insurers, the NHS and Canadian plans set the bar higher.
Weight · 6 min readUpdated 18 Oct 2026Why compounded semaglutide and tirzepatide aren't the same as the brands, what changed when the shortages ended, and how to check a product is genuine in the US, UK and Canada.
Weight · 5 min readUpdated 18 Oct 2026Twelve questions that separate a careful online weight-loss service from a risky one: prescriber, drug, total cost, safety checks and the claims regulators have banned.
Weight · 6 min readUpdated 18 Oct 2026Weekly prices, insurance, live sessions, psychiatry and privacy record compared, with which one actually works in the US, Canada and UK.
Mental health · 7 min readUpdated 18 Oct 2026What the research says about online CBT, the situations where a GP or primary-care clinician should come first, and the free routes in each country.
Mental health · 6 min readUpdated 18 Oct 2026Who can refer themselves, what happens at the assessment, how long the wait really is, and the free options in Scotland, Wales and Northern Ireland.
Mental health · 6 min readUpdated 18 Oct 2026Full blood count, ferritin, TSH, HbA1c and a coeliac screen: what each finds, what isn't worth paying for, and how to get them free in the US, Canada and UK.
Tests · 9 min readUpdated 15 Oct 2026How long to wait after sex for each infection, what home kits miss, and the free clinic and postal routes in the US, Canada and UK.
Tests · 11 min readUpdated 9 Oct 2026Who should check, what 5.7%, 6.0% and 6.5% mean in each country, when HbA1c gives the wrong answer, and how to get it free.
Tests · 8 min readUpdated 3 Oct 2026Serum iron changes by the hour; ferritin shows your stores. The four markers in the order they fall, the ferritin numbers guidelines actually use, and how to get the right test free.
Tests · 9 min readUpdated 25 Sep 2026Only the 25-hydroxy test matters. When a GP or clinic will order it free (US, Canada, UK rules), and what a $49 / £30 kit gets you.
Tests · 8 min readUpdated 19 Sep 2026Why a TSH through your GP is usually the right first step, when a $99–$149 (US) or £30–£99 (UK) kit is worth it, and what to do with the result.
Tests · 8 min readUpdated 11 Sep 2026