Checkout takes four minutes. You pack the hotel slippers, and nobody at the front desk says a word. Four hours later you are at the gate with a flat white when your phone buzzes. "Your results are ready." The attachment is longer than the novel in your carry-on.

Luxury hotels have discovered that a blood draw photographs almost as well as an infinity pool. Forbes Travel Guide lists biomarker testing and gut health profiles at Six Senses Ibiza. One&Only One Za'abeel in Dubai offers an "inside-out assessment" of metabolism and immunity. When Viva spent five days inside Lanserhof Sylt, the first morning mapped everything from the microbiome to arterial stiffness.

What rarely comes with longevity clinic test results is a plan. A longevity week is worth what you do with its results. Every line on the report belongs in one of three piles: act on it, take it to your GP, or leave it on the plane.

Woman at an airport gate reading her longevity clinic test results on her phone, spa slippers in her tote bag

The short answer: Longevity clinic test results fall into three groups. Leave IgG food sensitivity, consumer microbiome scores and a lone biological age aside. Take ApoB, lipoprotein(a), A1C and fasting glucose to your GP. Act yourself on low ferritin, low vitamin D and a poor fitness score, and ask the clinic for raw values with units and reference ranges.

  • LifeLabs raised Ontario's lower ferritin limit to 30 µg/L in September 2024, up from 12 to 15
  • Health Canada suggests 400 IU of vitamin D daily for adults under 51 who skip vitamin D foods
  • A Cleveland Clinic study of 122,007 adults linked the lowest fitness to five times the risk of death
The pile What goes in it When on the trip home
Leave it on the plane IgG food sensitivity, a gut microbiome score, a lone "biological age", a menopause hormone panel after 45 Somewhere over the Atlantic
Take it to your GP ApoB, LDL and lipoprotein(a); A1C and fasting glucose; an odd hormone result before 45 From the taxi, before you are home
Act on it yourself Low ferritin, low vitamin D, a poor fitness score The first week back

Wheels up: the pile you leave on the plane

Seatbelt sign off, tray table down, a small bag of pretzels you did not ask for. The cabin lights dim somewhere over the ocean, and the report gets easier to judge. Open it from the back. Glossy reports tend to file their weakest science there.

Aeroplane tray table at dusk with pretzels and a phone for reading longevity clinic test results on the flight home

The food sensitivity page is usually the longest. According to the Canadian Society of Allergy and Clinical Immunology, IgG antibodies to a food are a sign that you have eaten it and tolerated it. Healthy people are expected to test positive. That is why the list of "reactive" foods reads so much like your grocery receipt, oat milk and blueberries included.

The gut microbiome score fares little better. An international expert panel in The Lancet Gastroenterology & Hepatology found no proven clinical role for consumer microbiome tests. A single "biological age" is a snapshot that illness, pregnancy and perimenopause can all push around. After 45, the Canadian Menopause Society diagnoses menopause from your age, periods and symptoms. A printed FSH level adds very little.

Everything in this pile can stay in the seat pocket with the safety card.

Landing: which longevity clinic test results go to your GP?

The runway is wet and the taxi line moves at the speed of a Tuesday. Forward the PDF from the back seat, while the medical-sounding words are still fresh.

Woman in the back seat of a taxi on a rainy evening tapping her phone, city lights on the wet window

Blood fats lead the list. Canada's cardiology guidelines use ApoB or non-HDL cholesterol to guide treatment when triglycerides run high. They also recommend measuring lipoprotein(a) once in every adult's life, because it is largely inherited. Blood sugar belongs in the same envelope, since Diabetes Canada sets a prediabetes range for both A1C and fasting glucose. Irregular periods in your thirties deserve a proper workup, whatever the clinic's dial says.

Ask the clinic for raw values with units and reference ranges. Coloured dials look lovely in a hotel lounge. They do not fit in a Canadian medical record. One sentence gets you further than a stack of printouts: "The clinic flagged my ApoB and my A1C. What would you do next?"

The first week back: which results should you act on?

The suitcase is unpacked, and the hotel slippers are now beside your own bed, looking faintly smug. Three results are yours to handle.

Woman walking briskly uphill toward a neighbourhood bakery on a sunny morning, smiling and out of breath

Start with ferritin, the protein that stores your iron. Until September 2024, many Ontario community labs set the lower limit of normal at 12 to 15 µg/L. A woman with nearly empty stores could walk out with a clean report. LifeLabs has since raised the floor to 30, and a recent CMAJ review of iron deficiency in females draws the same line. If yours sits below it, especially with heavy periods or hair in the shower drain, you have found the most fixable number on the PDF.

CanPrev Iron Bis-Glycinate 25 mg capsules, 120 count

CANPREV Iron Bis-Glycinate 25 (120 capsules), $16.09

This one is for the woman whose ferritin came home under the line, and only for her. The bisglycinate form is gentle enough that you will still be taking it in week three, which is where most iron loses people.

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Vitamin D is next. If the clinic flagged it low, Health Canada already suggests a daily 400 IU supplement for adults under 51 who do not eat vitamin D foods every day. Choosing Wisely Canada advises against routine retesting in healthy people, so this is a one-time nudge.

Prairie Naturals Vitamin D3 1000 IU softgels in organic olive oil, 500 count

PRAIRIE NATURALS Vitamin D3 1000 IU (500 softgels), $21.79

Take one small softgel in olive oil with breakfast, starting on the first grey morning back. The bottle will still be half full when the next retreat brochure arrives.

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Your fitness score deserves the most respect. Cleveland Clinic researchers followed 122,007 adults after treadmill tests. Those with the lowest fitness for their age and sex had five times the risk of death of the fittest. The cardio does not have to be a spin class with a shouting instructor, and a brisk walk uphill to the good bakery counts. Getting pleasantly breathless is the one prescription on the report that nobody can sell you in a bottle.

Before you book the next retreat, email the clinic one question: will a doctor go through my results with me before I check out? If the answer is yes, the PDF comes home with a plan. A no means you should keep the slippers and skip the blood draw.

This article is general information and does not replace advice from your doctor or pharmacist.

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Frequently asked questions

How common is low iron in Canadian women?

Very. The 2025 CMAJ review cites an Ontario study in which 38% of nonpregnant females screened had iron deficiency without anemia and 13% had iron-deficiency anemia. Heavy menstrual bleeding, a major cause, is common and underdiagnosed.

What counts as a high lipoprotein(a) result?

Canadian cardiology guidance treats an Lp(a) of 50 mg/dL or more, about 100 nmol/L, as a factor that raises cardiovascular risk. The level is mostly inherited, so a high result is worth mentioning to your siblings, who may share it.

Why is an IgG food test risky as well as useless?

Canada's allergy specialists warn that someone with a true IgE food allergy may show no raised IgG to that food. An IgG report could then suggest the food is safe to eat again, which can be dangerous for anyone with a real allergy.

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