30+ Biomarkers
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Build a blood test that's tailored to you - your symptoms, your goals, your health journey.
From £39
Nutrition & Vitamin Blood Tests
Good nutrition is the backbone of a good health. Check for vitamin and mineral deficiencies with our at-home blood tests.
All nutrition tests
Most popular
14 Biomarkers
Nutricheck – Vitamin Deficiency Test
Looking to improve your diet and get a better understanding of your overall health and nutrition? Nutricheck home blood test can help.
£109
Includes Lp(a)
8 Biomarkers
Advanced Cholesterol Test
If you're concerned about your heart health, our advanced cholesterol blood test is an easy and accurate way to check your levels.
£85
1 Biomarker
HbA1c Blood Test
Our HbA1c blood test is for anyone wanting to check for pre-diabetes, or managing type-2 diabetes.
£46
View Test
£39
1 Biomarker
Magnesium (Serum) Blood Test
Keep track of your magnesium levels with our at-home blood test.
£45
1 Biomarker
Vitamin B12 Blood Test
Check if your low energy and fatigue could be due to a lack of vitamin B12 with our Active B12 home blood test.
£50
View Test
£39
1 Biomarker
Ferritin Blood test
If you're feeling tired all the time and low on energy you could be suffering from low iron levels. Check with our ferritin blood test.
£41
View Test
£39
13 Biomarkers
Pregnancy Nutrition Blood Test
Our Pregnancy Nutrition test will help check that your diet is giving you everything you need to support your energy levels and a growing baby.
£99
1 Biomarker
Vitamin D Blood Test
Do you often feel tired or rundown? These could be signs of a vitamin D deficiency. Check your vitamin D levels with our home blood test.
£50
View Test
£39
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Frequently asked questions
This is what our customers ask us about the most. For more information, try our help centre.
What is a nutrition blood test?
A nutrition blood test measures levels of essential vitamins, minerals, and other nutrients in your blood to assess your nutritional status and identify any deficiencies.
Why should I consider taking a nutrition blood test?
Understanding your nutrient levels can help identify deficiencies that may affect your health, allowing for targeted dietary adjustments or supplementation to improve overall well-being.
Which nutrients are typically assessed in a nutrition blood test?
Common nutrients evaluated include vitamins such as B12 and D, minerals like iron and magnesium, and essential fatty acids like omega-3 and omega-6.
How do I prepare for a nutrition blood test?
Preparation may vary depending on the specific test. We advise collecting your blood sample within 3 hours of waking and before you eat. To help make the sample collection easier, we also advise drinking a large glass of water 30 minutes before your test. Warming your hands and doing some light exercise, such as walking, can help increase blood flow and make the whole process quicker, too.
How is the blood sample collected?
Blood samples are collected through a finger-prick test or a venous blood draw. Some more advanced tests can only be done by collecting a blood sample from your vein, such as our Advanced Health Check and Ultimate Health Check. You can find out more about how to collect your blood sample here.
How long does it take to receive results?
You’ll get your blood test results 2 working days after your blood sample reaches our lab. Our Ultimate Health Check has a 15 day turnaround.
Are at-home nutrition blood tests accurate?
Yes – Forth’s at-home nutrition blood tests are accurate, reliable, and scientifically validated.
All our finger-prick tests have been assessed in an NHS study for their accuracy compared to traditional venous blood draws (where blood is taken from a vein) and for their stability when sent through the post. Dr Thom Phillips, our Head of Clinical Services, explains: “The NHS labs we work with confirmed that our tests produce statistically validated results, equivalent to those you’d get from your GP. They’re safe, reliable, and clinically trusted.”
How often should I take a nutrition blood test?
The frequency depends on individual health needs, dietary habits, and the presence of any medical conditions, but we recommend testing every 6 months to track changes in your health and learn trends.
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