Nutrition & Blood Health
What you eat directly affects your blood health. Iron builds hemoglobin. Vitamin B12 and folate drive red blood cell production. Vitamin K enables clotting. Deficiencies in any of these nutrients can lead to anemia, fatigue, and impaired immune function. These guides cover the dietary foundations of healthy blood.
Foods High in Iron: Complete List by Category (mg per serving)
The most complete guide to iron-rich foods — animal and plant sources, heme vs non-heme iron, absorption tips, and how much iron you actually need daily.
- ✓ Heme iron (from meat, poultry, fish) is absorbed at 15–35%, far more efficiently than non-heme iron (from plants) at 2–20%.
- ✓ Organ meats — especially beef liver — are the highest dietary iron sources available, providing 5–6 mg per 3 oz serving.
- ✓ Vitamin C dramatically improves non-heme iron absorption; eat citrus, bell peppers, or tomatoes alongside plant-based iron sources.