Red cells & oxygen transport

Best foods for blood health

The most blood-supportive foods in the catalogue, ranked by iron, B-vitamins, and the nutrients behind red-cell production and oxygen transport, with evidence-linked values.

Folate (DFE)26Iron21Vitamin B1247Vitamin B625Copper16Riboflavin (Vitamin B2)13Vitamin C17

Top sources

Vegetables87Meat & Poultry50Grains & Starches41

Top-ranked foods

How nutrition supports this domain

Iron, folate, vitamin B12, and copper underpin healthy blood. These nutrients drive the domain most across foods.

Primary drivers

Usually the largest share of a food's domain score.

Folate (DFE)26% influence
Captures B-vitamin support for energy metabolism, cell division, and nerves.
350 foods · 93% of domainavg 58th pct
Iron21% influence
Highlights oxygen-transport capacity through haemoglobin-related nutrition.
361 foods · 96% of domainavg 55th pct
Vitamin B1247% influence
Captures B-vitamin support for energy metabolism, cell division, and nerves.
149 foods · 40% of domainavg 77th pct
Vitamin B625% influence
Contributes to this domain's score when Vitamin B6 is concentrated in the food.
353 foods · 94% of domainavg 56th pct

Supporting drivers

Nutrients that reinforce the domain signal when present at meaningful levels.

Copper16% influence
Flags trace-mineral support for enzymes, defence systems, and tissue maintenance.
353 foods · 94% of domainavg 58th pct
Riboflavin (Vitamin B2)13% influence
Captures B-vitamin support for energy metabolism, cell division, and nerves.
367 foods · 98% of domainavg 55th pct
Vitamin C17% influence
Marks antioxidant and collagen-related nutrition that supports repair systems.
236 foods · 63% of domainavg 70th pct

Where it comes from

Food groups contributing the most qualifying foods to this domain.

Vegetables87
Meat & Poultry50
Grains & Starches41
Herbs & Spices40
Dairy & Cheese39
Fruits38
Fish & Seafood32
Nuts & Seeds22