2 biomarkersVitamin levels
Vitamin D, which keeps bones and muscles strong, and B12, which keeps blood and nerves healthy.
Vitamin levels includes
2 biomarkers
A vitamin the skin makes from sunlight, which helps keep bones and muscles strong.
Learn more about Vitamin DThe form of vitamin B12 the body can use, needed for red blood cells and nerves.
Learn more about Active B12What does the vitamin panel measure?
Vitamin D is made by the skin from sunlight, and it controls how much calcium the body absorbs from food. Active B12 is the part of vitamin B12 that cells can take up. Most of the rest is carried on a protein cells cannot use, which is why the active part is measured rather than the total.
Why does it matter?
An extended vitamin D shortage shows in bone and muscle. Cells need B12 to divide, so a shortage of it leaves a person anaemic. Both are questions of supply. In the UK sunlight is only strong enough to make vitamin D from about April to September. B12 needs two things, animal foods in the diet and a gut able to absorb them, and either can fail on its own.
What else we measure
Heart healthThe cholesterol that builds up in your artery walls and raises your risk of heart attack and stroke.9 biomarkers
Blood sugarHow well your body controls blood sugar, today and over the past three months.4 biomarkers
Blood cell healthHow well your blood carries oxygen, fights infection and clots.10 biomarkers
Kidney healthHow well your kidneys filter waste and keep minerals like sodium and potassium in balance.8 biomarkers
Liver healthWhether your liver is being damaged by alcohol or fat.7 biomarkers
Thyroid healthYour thyroid, which controls how fast your body uses energy.2 biomarkers
HormonesYour sex hormones, which affect energy, mood, sex drive and fertility, and the brain signals that control them.8 biomarkers
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