What blood tests check vitamins & nutrition?
Vitamins, minerals and fatty acids that support energy, immunity and wellbeing. Tests available in this category include Ferritin — Iron Stores, Active Vitamin B12, Vitamin D, 25-OH, Omega-3/Omega-6. Each test includes a home collection kit, prepaid tracked return and professional laboratory analysis.
Browse all OptiBlood tests or explore the individual tests below.
Vitamins & Nutrition
Vitamins, minerals and fatty acids that support energy, immunity and wellbeing.
4 tests
Measures ferritin, reflecting your body’s iron stores. This is a Ferritin test, not an Iron Status Profile.
Biomarker: Ferritin
24–72h
Consider the Ultimate Energy & Fatigue PanelMeasures the active form of vitamin B12.
Biomarker: Active Vitamin B12
24–72h
Consider the Ultimate Energy & Fatigue PanelVitamin D, 25-OH
HomeMeasures vitamin D levels.
Biomarker: Vitamin D, 25-OH
24–72h
Consider the Ultimate Energy & Fatigue PanelOmega-3/Omega-6
HomeMeasures omega-3 and omega-6 fatty acid levels.
Biomarker: Omega 3, Omega 6
5–7 working days
Consider the Ultimate Energy & Fatigue PanelRelated health bundles
Complete Well Woman Screen
A broad female health check covering thyroid function, iron stores, cholesterol, blood sugar and liver health.
- Home collection kit included
- Prepaid return included
- Laboratory analysis included
⏱ 24–72h · 5 tests/profiles
Ultimate Energy & Fatigue Panel
Investigates common nutritional and thyroid-related factors associated with tiredness, low energy and fatigue.
- Home collection kit included
- Prepaid return included
- Laboratory analysis included
⏱ 24–72h · 4 tests/profiles
Couples Comprehensive Health Bundle
Two individual home health-testing kits combining a men’s health screen and a women’s health screen.
- Home collection kit included
- Prepaid return included
- Laboratory analysis included
⏱ 24–72h · 2 tests/profiles