Ferritin

Bio-Activity Analysis
Iron Absorption: Heme vs. Non-Heme
SCIENTIFIC DATA VISUALIZATION
Health Benefits & Sources
Why You Need It
- Skyrockets Energy Levels: Adequate iron stores prevent anemia, directly combating physical and mental fatigue.
- Boosts Cognitive Function: Oxygen delivery to the brain improves focus and memory.
- Supports Hair & Nail Growth: Low ferritin is a common cause of hair shedding and brittle nails.
- Regulates Body Temperature: Helps prevent feeling constantly cold, especially in hands and feet.
Deep Dive
Ferritin represents your body's total iron reserves. When you eat iron-rich foods, your body absorbs it and binds it to ferritin for storage. This process is crucial because free iron can be toxic to cells. Over time, through blood loss (menstruation), poor diet, or intense exercise, these stores deplete. Unlike the iron circulating in your blood (which can look normal for a while), low ferritin is the earliest warning sign of iron deficiency. Replenishing these stores allows your body to ramp up hemoglobin production, ensuring every cell gets the oxygen it needs to function optimally.
Natural Food Sources
While red meat is famous for iron, plant-based sources are powerful when paired correctly. Pro Tip: Eat plant iron with Vitamin C (like citrus or bell peppers) to boost absorption by up to 300%.
| Food | Amount | % DV (Daily Value) |
|---|---|---|
| Fortified Cereal | 1 serving | 100% + |
| White Beans (Cooked) | 1 cup | 37% |
| Dark Chocolate (70-85%) | 1 oz | 19% |
| Spinach (Cooked) | 1/2 cup | 20% |
| Lentils | 1/2 cup | 17% |
Supplementation
Dosage: It varies, but clinical recommendations often range from 30–60 mg of elemental iron daily for deficiency. Who should take it? Primarily those with diagnosed low ferritin, heavy menstrual cycles, pregnancy, or frequent blood donors. Vegetarians and vegans should monitor levels closely. Note: Always get blood work done first. Supplementing without need can cause iron overload.
Top Food Sources
Frequently Asked Questions
Safety & Side Effects
Iron supplements can cause digestive upset (nausea, constipation, dark stools). To minimize this, start with a lower dose and take it with a small amount of food (though avoid calcium-rich foods/dairy at the same time as they block absorption).
Who should avoid it? People with Hemochromatosis (a genetic condition causing iron overload) or active infections should avoid iron supplements unless specifically prescribed by a doctor. Excess iron can feed bacteria.
Scientific References
- [1]Andrews, N. C. (1999). Disorders of iron metabolism. *New England Journal of Medicine*.
- [2]Camaschella, C. (2015). Iron-deficiency anemia. *New England Journal of Medicine*.
- [3]National Institutes of Health (Office of Dietary Supplements) - Iron Fact Sheet.