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InsightHorizon Digest

What causes low ferritin levels

Author

John Thompson

Updated on April 17, 2026

A lower-than-normal ferritin level can indicate that you have an iron deficiency, which can happen when you don’t consume enough iron in your daily diet. Another condition that affects iron levels is anemia, which is when you don’t have enough red blood cells for iron to attach to.

What diseases cause low ferritin?

  • Anemia [2]
  • Fatigue [3]
  • Hair loss [4, 5, 6, 7]
  • Fibromyalgia [8]
  • IBD [9]
  • Hypothyroidism [10]
  • Depression [11]
  • Anxiety [12]

How do you increase ferritin levels?

Consuming iron-rich foods improves iron stores and ferritin levels. These include green leafy vegetables, cocoa powder, dark chocolate, oatmeal, cereals, wheat germ, beans and tofu, lamb and beef, nuts, pumpkin and squash seeds, liver and mollusks, among others.

What does low ferritin do to your body?

Low levels of ferritin lead to iron-deficiency anemia. This means you have too few red blood cells. Iron deficiency can come from a poor diet or blood loss. Or your body may have trouble absorbing iron from food.

What cancers cause low ferritin levels?

In a study published in July 2013 in the Annals of Oncology, iron deficiency was most commonly seen in people with pancreatic cancer (present in 63 percent of participants), followed by colorectal cancer (52 percent) and lung cancer (51 percent).

What is a severely low ferritin level?

Serum ferritin is typically less than 10 ng/mL in severe iron deficiency associated with anemia. In iron deficiency without anemia, ferritin is typically in the range of 10-20 ng/mL.

When should I worry about ferritin levels?

If a ferritin test shows higher than normal levels, it could indicate that you have a condition that causes your body to store too much iron. It could also point to liver disease, rheumatoid arthritis, other inflammatory conditions or hyperthyroidism.

What is the difference between iron and ferritin?

What is the difference between iron and ferritin? Iron is an important mineral present in red blood cells that carries oxygen to cells in the body. Ferritin on the other hand is a protein that stores iron and releases iron when the body needs it.

What does low ferritin feel like?

If your ferritin levels are too low, you may feel fatigued and run down. Fatigue can often be linked to inadequate iron in the blood. And since ferritin is a marker of long-term iron intake, it’s perfect for determining whether that worn-down feeling can be linked to your diet.

Why is my iron normal but ferritin low?

Lower than normal results A low ferritin level likely means you may have an iron deficiency. If the body does not have enough stored iron, it can affect the production of healthy red blood cells and cause iron deficiency anemia.

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How quickly can ferritin levels rise?

Parenteral iron Intravenous infusion results in a rapid replenishment of iron stores with peak ferritin concentrations at 7–9 days after infusion. In our experience the haemoglobin should rise within 2–3 weeks in the majority of patients.

What is the best iron supplement to take for low ferritin?

Ferrous salts (ferrous fumarate, ferrous sulfate, and ferrous gluconate) are the best absorbed iron supplements and are often considered the standard compared with other iron salts.

Is ferritin a tumor marker?

Ferritin: a tumor marker expressed by renal cell carcinoma.

What were your first signs of leukemia?

  • Fever or chills.
  • Persistent fatigue, weakness.
  • Frequent or severe infections.
  • Losing weight without trying.
  • Swollen lymph nodes, enlarged liver or spleen.
  • Easy bleeding or bruising.
  • Recurrent nosebleeds.
  • Tiny red spots in your skin (petechiae)

How is ferritin deficiency treated?

Patients with repeatedly low ferritin will benefit from intermittent oral substitution to preserve iron stores and from long term follow-up, with the basic blood tests repeated every 6 or 12 months to monitor iron stores.

Why is my body not absorbing iron?

Your body can’t absorb iron. Conditions like celiac disease, ulcerative colitis, or Crohn’s disease can make it harder for your intestines to absorb iron. Surgery such as gastric bypass that removes part of your intestines, and medicines used to lower stomach acid can also affect your body’s ability to absorb iron.

Can low ferritin cause inflammation?

Serum ferritin is also a well known inflammatory marker, but it is unclear whether serum ferritin reflects or causes inflammation, or whether it is involved in an inflammatory cycle. We argue here that serum ferritin arises from damaged cells, and is thus a marker of cellular damage.

What ferritin level requires iron infusion?

IDA with non-dialysis CKD: serum ferritin less than 100 ng/mL or TSAT less than 20 percent. If serum ferritin is 100-300 ng/mL, TSAT less than 20 percent is required to confirm IDA. IDA with hemodialysis-dependent CKD: serum ferritin less than or equal to 200 ng/mL and TSAT less than or equal to 20 percent; or.

Can you pass out from low ferritin?

Symptoms of Iron Deficiency Anemia: It may be hard for you to do any kind of your normal activities. If you are severely anemic, you may have shortness of breath, chest discomfort, palpations, or feel faint like you are going to pass out.

Does low ferritin make you dizzy?

Without enough iron, you may feel tired and dizzy, and can even develop anemia.

Does low ferritin affect sleep?

Conclusions. Sleep problems are common, and this study suggests an association between low serum ferritin levels and sleep disturbances.

Does low ferritin cause anxiety?

A large 2020 study in BMC Psychiatry found that people with iron deficiency anemia had a significantly higher incidence and risk of anxiety disorders, depression, sleep disorder, and psychotic disorders.

What causes low ferritin without anemia?

It may be caused by blood loss due to medication (anti-platelets, anticoagulants), malabsorption or reduced intracellular iron uptake. Patients with heart failure should be screened for iron level even if they are not anaemic, as treatment of depletion can improve prognosis.

How long does it take to correct low ferritin?

Most people start to feel better within a few days of beginning treatment. Even though you feel better, you will need to keep taking the pills for several months to build up your iron stores. Sometimes it takes up to 6 months of treatment with iron supplements before iron levels return to normal.

When should I take iron morning or night?

Conclusion. As a rule, people that take an iron supplement should take it in the morning, on an empty stomach, with water or a drink containing vitamin C. And for those who have a sensitive stomach, their best bet is to take their iron right after a meal.

Are eggs high in iron?

Eggs, Red Meat, Liver, and Giblets Are Top Sources of Heme Iron.

Does rheumatoid arthritis cause high ferritin?

Ferritin is an acute phase reactant and a marker of acute and chronic inflammation. It is elevated in a wide range of inflammatory conditions, including chronic kidney disease, rheumatoid arthritis, and other autoimmune disorders, acute infections, and cancer [1, 2].

What cancers are associated with high ferritin levels?

In addition to breast cancer, the serum ferritin level has also been found to be elevated in patients with lung cancer, pancreatic cancer, hepatocellular carcinoma, colorectal cancer, leukemia, and lymphoma, and the level was closely associated with the prognosis.

Does leukemia cause high ferritin?

Raised serum ferritin levels in leukemia patients occur mainly because of increased capacity of ferritin synthesis by myelogenous cells, resulting in increased circulating ferritin concentration. During remission phase, ferritin concentration decreased but was still higher than controls.

What are the warning signs of lymphoma?

Lymphoma warning signs include swollen lymph nodes, fever, chills, weight loss, shortness of breath, drenching night sweats, tiredness, and swelling in the abdomen. Lymphoma is a cancer of certain cells that are part of the body’s immune system called lymphocytes.

What were your first signs of lymphoma?

  • Painless swelling of lymph nodes in your neck, armpits or groin.
  • Persistent fatigue.
  • Fever.
  • Night sweats.
  • Shortness of breath.
  • Unexplained weight loss.
  • Itchy skin.