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.

Build your own

Build your own

Build your own test that's specific to your health needs, choosing from our wide range of Biomarkers.

Choose from 30+ markers

Nutricheck – Vitamin Deficiency Test

Nutricheck – Vitamin Deficiency Test

Results in 2 working days

Looking to improve your diet and get a better understanding of your overall health and nutrition? Nutricheck home blood test can help.

14 Biomarkers

£109

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Klarna

Or 3 interest-free payments of £ 36.33

Vitamin B12 Blood Test

Vitamin B12 Blood Test

Results in 2 working days

Check if your low energy and fatigue could be due to a lack of vitamin B12 with our Active B12 home blood test.

1 Biomarker

£50

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Klarna

Or 3 interest-free payments of £ 16.67

Cholesterol Blood Test

Cholesterol Blood Test

Results in 2 working days

If you're concerned about your heart health, our cholesterol home blood test is an easy and accurate way to check your levels.

5 Biomarkers

£41

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Ferritin Blood test

Ferritin Blood test

Results in 2 working days

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.

1 Biomarker

£41

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HbA1c Blood Test

HbA1c Blood Test

Results in 2 working days

Our HbA1c blood test is for anyone wanting to check for pre-diabetes, or managing type-2 diabetes.

1 Biomarker

£46

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Vitamin D Blood Test

Vitamin D Blood Test

Results in 2 working days

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.

1 Biomarker

£50

View Test
Klarna

Or 3 interest-free payments of £ 16.67

Magnesium (Serum) Blood Test

Magnesium (Serum) Blood Test

Results in 2 working days

Keep track of your magnesium levels with our at-home blood test.

1 Biomarker

£45

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Anaemia Blood Test

Anaemia Blood Test

Results in 2 working days

Our anaemia home blood test will help identify if symptoms of low energy and fatigue could be due to deficiencies in iron, vitamin B12 or vitamin D.

9 Biomarkers

£99

View Test
Klarna

Or 3 interest-free payments of £ 33

Pregnancy Nutrition Blood Test

Pregnancy Nutrition Blood Test

Results in 2 working days

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.

13 Biomarkers

£99

View Test
Klarna

Or 3 interest-free payments of £ 33

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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.”

Read more about home blood test accuracy here.

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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