Bloodworks Weightloss
Our choice for following your health during weight loss or a GLP-1 programme
Bloodworks Weightloss · Baseline
Blood draw and handling fee included.
Choose your test.
- No referral needed
- 1000+ collection points
- Results typically within 2 working days
- Every result reviewed by a BIG-registered doctor
Product description
The full Bloodworks Plus base check combined with the nutritional and metabolic markers that matter during medical weight loss or GLP-1 medication (such as Ozempic or Wegovy). All-in, including blood draw and collection costs.
Bloodworks Weightloss is a blood test measuring 30 biomarkers across 8 measurement domains, reviewed by a doctor.
Who is this package for?
Starting a GLP-1 programme
About to start GLP-1 medication (such as Ozempic or Wegovy)? A complete baseline gives you a reference point for your sugar, liver, lipid and nutritional values.
Follow-up during weight loss
After a few months your sugar, liver and lipid values change. A repeat measurement makes that progress concrete.
Protect your nutritional status
Eating less depletes ferritin, B12 and vitamin D faster. This way you see in time whether supplementation makes sense.
Losing weight without medication
On a calorie-restricted diet or lifestyle programme, your metabolic and nutritional markers are just as worth tracking.
In brief
| Fasting | 8 hours, for the most reliable result |
|---|---|
| Results | Typically within 2 working days |
| Referral | Not required |
| Report | Personal, with an explanation from our doctor |
Eight domains. One blood draw.
All 30 biomarkers with a short description.
Complete blood count6 biomarkers | |
|---|---|
| Haemoglobin (Hb) | Oxygen-carrying protein; a low value can point to anaemia. |
| MCV | Average size of the red blood cells. |
| Haematocrit | Share of the blood made up of cells. |
| Red blood cells | Number of red blood cells. |
| Platelets | Blood platelets; involved in clotting. |
| Leukocytes | White blood cells; the immune system. |
Kidney function4 biomarkers | |
|---|---|
| Urea | Waste product of protein metabolism; kidneys and hydration. |
| Creatinine | Muscle breakdown product; kidney function. |
| eGFR | Calculated filtration capacity of the kidneys. |
| Uric acid | Waste product of purine metabolism; kidney and gout. |
Electrolytes2 biomarkers | |
|---|---|
| Sodium | Electrolyte; fluid balance, blood pressure and nerve function. |
| Potassium | Electrolyte; heart conduction and muscle function. |
Liver function6 biomarkers | |
|---|---|
| Alkaline phosphatase (ALP) | Liver enzyme; also involved in bone metabolism. |
| Gamma-GT (GGT) | Liver enzyme; sensitive to alcohol and liver strain. |
| AST | Liver enzyme; raised when liver cells are damaged. |
| ALT | Liver enzyme; can be raised with liver strain. |
| Bilirubin (total) | Breakdown product of haemoglobin; reflects liver and bile status. |
| Albumin | Protein produced by the liver; reflects nutritional status. |
Heart and cholesterol4 biomarkers | |
|---|---|
| Total cholesterol | The total amount of cholesterol in your blood. |
| HDL cholesterol | "Good" cholesterol; transports cholesterol back to the liver. |
| LDL cholesterol | "Bad" cholesterol; raised levels are associated with cardiovascular risk. |
| Triglycerides | Fat molecule; often raised with excess weight, a high sugar intake or alcohol. |
Thyroid2 biomarkers | |
|---|---|
| TSH | Pituitary hormone that drives thyroid activity. |
| Free T4 (FT4) | Active thyroid hormone; core value in thyroid work-up. |
Blood sugar2 biomarkers | |
|---|---|
| Glucose (fasting) | Blood sugar level; raised in diabetes or pre-diabetes. |
| HbA1c | Long-term blood sugar (3 months); diabetes marker. |
Nutritional status during weight loss4 biomarkers | |
|---|---|
| Ferritin | Iron stores; can drop when you eat less. |
| Vitamin B12 | Essential for energy and nerve function. |
| Vitamin D (25-OH) | Important for bone health and immunity. |
| Calcium | Bone and nerve function; belongs alongside vitamin D. |
With every result, your personal report includes an explanation from our doctor.
Three steps to your report
- 1
Order online
Choose Weightloss and your collection point. You receive your lab form by email.
- 2
Blood draw at a collection point
At one of the 1000+ collection points, no referral needed. We advise fasting for 8 hours.
- 3
Results with an explanation from our doctor
Typically within 2 working days, reviewed by a BIG-registered doctor.
Insight, explained by our doctor.
A personal report with an explanation from our doctor, and all your results in one secure place.
Personal report
With an explanation from our doctor for your results.
Reviewed by a doctor
Every result reviewed by a BIG-registered doctor, measured in ISO 15189 accredited laboratories.
Your dashboard
All results in one secure place. Your progress visible with every test.
How long does it take to get my results?
Typically within 2 working days of your blood draw. Some tests have a longer turnaround time. You then first receive the results that are already in; those values follow later. You receive an email as soon as your report is ready.
Do I need to fast?
Yes, we advise fasting for 8 hours for the most reliable result, particularly for glucose and triglycerides.
Where can I have my blood drawn?
Bloodworks works with more than 1000 collection points across the Netherlands. You choose your location yourself after ordering.
Do I need a referral?
No, you can order directly without a referral from your GP.
Can I share my report with my GP?
Yes, your report is written in medical language and contains all relevant laboratory information. Many customers take it to a consultation.
Are the blood draw and collection costs included?
Yes. At Bloodworks you pay a one-off €29 in blood draw and collection costs per order, and from €225 that amount is waived. This value package is priced above that, so you pay nothing extra for the collection point or the blood draw. If you order only a smaller theme package or a single marker, the €29 is added.
Ready for insight into your health?
Bloodworks Weightloss · Baseline · 30 biomarkers · results typically within 2 working days