Iron Deficiency in India: Signs, Tests, and How to Treat It
Iron Deficiency in India: The Short Answer
Iron deficiency in India is very common. It is a top cause of anemia, which means too little hemoglobin in the blood. NFHS-5 (2019–21) found that 57% of Indian women, 67% of children aged 6–59 months and 52% of pregnant women are anemic. Yet most people do not know they have it until the signs get serious.
Not every anemia comes from low iron. The CNNS (2016–18), a national survey of children and teens, tested iron stores. It found iron deficiency in 32% of children aged 1–4 and 22% of teens aged 10–19.
This guide explains what iron deficiency looks like, which blood tests to ask for, and how it is treated step by step.
Last updated: 29 September 2026. Figures checked against NFHS-5, CNNS, WHO and NHS sources, listed at the end.
How Many Indians Are Iron Deficient?
NFHS-5 (National Family Health Survey, 2019–21) tested hemoglobin. Here is the share of each group with anemia, from the Health Ministry (PIB, 4 February 2022):
| Group | Anemia Prevalence (NFHS-5) |
|---|---|
| Children 6–59 months | 67.1% |
| Adolescent girls (15–19 years) | 59.1% |
| Pregnant women | 52.2% |
| Women 15–49 years | 57.0% |
| Adolescent boys (15–19 years) | 31.1% |
| Men 15–49 years | 25.0% |
In women aged 15–49, the highest NFHS-5 anemia rates were in Ladakh (92.8%) and West Bengal (71.4%). Next came Tripura (67.2%), Assam and Jammu & Kashmir (65.9% each) and Jharkhand (65.3%). In children aged 6–59 months, Ladakh was highest (92.5%). Then came Gujarat (79.7%) and Dadra and Nagar Haveli and Daman and Diu (75.8%). Madhya Pradesh and Jammu & Kashmir were at 72.7% each, and Rajasthan at 71.5%. Bihar was 63.5% for women and 69.4% for children.
Anemia is not the same as iron deficiency. NFHS-5 measured hemoglobin only. It did not test iron stores. The Comprehensive National Nutrition Survey (CNNS, 2016–18) did test ferritin, the iron-store marker. But it tested only children and teens:
- Children aged 1–4: 41% anemic, 32% iron deficient
- Children aged 5–9: 24% anemic, 17% iron deficient
- Teens aged 10–19: 28% anemic, 22% iron deficient (girls 31%, boys 12%)
We could not find a national survey that tested iron stores in Indian adults. So for adults, the honest answer is that nobody knows the exact number. For children and teens, it is about one in five to one in three.
Iron Deficiency vs Iron Deficiency Anemia: What Is the Difference?
There are three stages. Most people only hear about the last one:
- Stage 1 — Iron store depletion: Ferritin (your iron store) falls. Hemoglobin is still normal. You may feel nothing, or just slight tiredness. Your blood test looks fine. But your iron bank is empty.
- Stage 2 — Iron-deficient red cell production: The bone marrow does not have enough iron to make good red cells. Red cells start becoming smaller. Hemoglobin starts dropping.
- Stage 3 — Iron deficiency anemia: Hemoglobin is clearly low. Symptoms become obvious. Red cells are small and pale (microcytic hypochromic anemia).
This is why testing only hemoglobin misses early iron deficiency. You need a ferritin test to catch Stage 1.
12 Signs of Iron Deficiency
Most of these signs are on the NHS and WHO symptom lists. None of them proves iron deficiency on its own. Only a blood test can.
| Stage | Sign | Notes |
|---|---|---|
| Early | Tiredness without reason | Easy to blame on busy life or stress |
| Early | Brain fog, poor concentration | Affects work and study performance |
| Early | Reduced stamina, get tired faster | Climbing stairs or walking feels harder |
| Early | Headaches | Frequent mild headaches |
| Early | Irritability, low mood | Mood changes are often attributed to stress |
| Early | Restless legs at night | Urge to move legs, especially at bedtime |
| Moderate | Pale skin, pale inner eyelids, pale tongue | Look inside lower eyelid — should be pink, not white |
| Moderate | Shortness of breath with light activity | Feels winded going upstairs or walking fast |
| Moderate | Rapid heartbeat or palpitations | Heart works harder with less hemoglobin |
| Moderate | Dizziness when standing up quickly | WHO lists dizziness as a common sign of anemia |
| Moderate-severe | Brittle nails or spoon-shaped nails | In severe cases nails turn thin and dip in the middle like a spoon |
| Moderate-severe | Hair fall, thin and dull hair | The NHS lists hair loss as a less common sign |
Other less common signs: craving ice or unusual non-food items (pica), sore red tongue, cracks at mouth corners.
Is There a Home Test for Iron Deficiency?
No. There is no reliable home test for iron deficiency. It starts with low ferritin, and only a blood test can measure that. Checking your eyelids can hint at anemia, but it often misses it.
Doctors do look at these spots for paleness:
- Pull down your lower eyelid gently and look at the inner surface
- It should be bright pink or red
- If it looks pale pink or whitish, you may be anemic
- Also check your nail beds and your lips — pale or whitish instead of pink suggests possible anemia
How good is the eyelid check? A 2023 review of 14 studies, mostly in pregnant women and hospital patients, looked at this. Eyelid paleness caught anywhere from 19% to 97% of anemia cases, depending on the study. Nail-bed checks caught 41% to 65%. No single check was reliable (Vyas and others, Indian Journal of Hematology and Blood Transfusion, 2023).
This is not a diagnosis. If you see paleness, get a blood test done. Normal-looking eyelids do not rule out iron deficiency. If you have the signs above, test anyway.
What Your Blood Tests Mean: CBC and Ferritin
A CBC (complete blood count) can show anemia and small, pale red cells. It cannot measure your iron stores. For that you need a ferritin test. Ask for both.
| Test | Typical Lab Range* | What Points to Iron Deficiency |
|---|---|---|
| Hemoglobin (men) | 13.8–17.2 g/dL | Below 13.0 g/dL = anemia (WHO 2024) |
| Hemoglobin (women) | 12.1–15.1 g/dL | Below 12.0 g/dL = anemia. In pregnancy: below 11.0 g/dL, or below 10.5 g/dL in the second trimester (WHO 2024) |
| MCV (red cell size, part of the CBC) | 79–95 fL | Low = small red cells (microcytic) |
| MCH (hemoglobin per red cell, part of the CBC) | Women 26–33 pg, men 27–33 pg | Low = pale red cells (hypochromic) |
| Ferritin (iron stores) | Men 30–400 ng/mL, women 13–150 ng/mL | Age 5 and over: below 15 ng/mL = iron stores empty; under 5: below 12 (WHO 2020). Below 30 = low stores (BSG 2021). With infection or inflammation, WHO uses below 70 for age 5 and over. |
| Serum iron | Men 59–158 mcg/dL, women 37–145 mcg/dL | Often low in iron deficiency |
| TIBC | Men 171–505 mcg/dL, women 149–492 mcg/dL | High in iron deficiency |
*Example ranges from MedlinePlus (US National Library of Medicine). Your lab's printed range may differ a little. Ferritin in ng/mL is the same number as in µg/L. Cut-offs: WHO hemoglobin guideline (2024) and WHO ferritin guideline (2020), linked in the sources below.
Most important test: Ferritin. It detects iron deficiency before hemoglobin drops. Always ask for ferritin alongside a CBC when testing for iron status.
A low MCV does not always mean low iron. Thalassemia trait also makes red cells small, often much smaller than the level of anemia would suggest. The UK BSG guideline (2021) points this out. If your MCV is low but your ferritin is normal, ask your doctor about a hemoglobin electrophoresis test.
Who Is Most at Risk in India?
- Women of reproductive age: Monthly blood loss depletes iron. Heavy periods make it worse. Repeated pregnancies do not allow iron stores to recover.
- Pregnant women: Blood volume rises a lot in pregnancy, and the growing baby needs iron too. WHO names this blood volume growth as a common cause of anemia.
- Children under 5: Rapid growth, inadequate complementary feeding, and frequent infections deplete iron fast.
- Adolescent girls: Growth spurt + menstruation + diet restriction = triple iron drain. In the CNNS, 31% of teen girls were iron deficient, against 12% of teen boys.
- Vegetarians: Plant iron is non-heme, which absorbs at only 2–20% vs 15–35% for heme iron from meat and fish (Abbaspour and others, Journal of Research in Medical Sciences, 2014).
5 Surprising Causes Indians Often Miss
- Heavy menstrual bleeding: Most women think their periods are "normal." But the NHS says your periods may be heavy if they last more than 7 days, or if you need to change a pad every 1 to 2 hours. Heavy bleeding every month drains iron. Over time it can cause anemia.
- Tea with every meal: Tannins in chai block non-heme iron absorption. Many Indians drink chai right after eating iron-rich dal or sabzi. In a test-meal study, black tea cut iron absorption from the meal by 79–94% (Hurrell and others, British Journal of Nutrition, 1999).
- Intestinal parasites: Hookworm infection causes slow, steady blood loss from the gut. Common in rural India, especially in children who play on soil without shoes. The family thinks the child is just "weak."
- Repeated short-interval pregnancies: If you have a baby, then get pregnant again within 1–2 years, your iron stores may not have time to recover. Each pregnancy then starts with less iron in the bank.
- Chronic inflammation or infection: TB, malaria, chronic infections — iron gets trapped in the body's defences and is not available to make hemoglobin. Iron tablets alone may not fix this kind of anemia. The illness needs treatment too.
Iron Deficiency During Pregnancy: Why It Matters So Much
Pregnancy raises iron needs, because the mother's blood volume grows. For comparison, ICMR-NIN (2020) sets 29 mg of iron a day for adult Indian women who are not pregnant. The WHO anaemia fact sheet says anemia in pregnancy is linked with:
- The mother is severely tired, breathless, and weak
- Premature birth
- Low birth weight
- Low iron stores in the baby at birth (WHO lists this as a cause of anemia in young children)
- A higher risk of the mother dying in or after childbirth
- In young children, severe anemia is linked with poorer brain and motor development
This is why the Indian government gives free IFA (iron and folic acid) tablets under Anaemia Mukt Bharat. For pregnant women, the NHM schedule is one tablet a day (60 mg iron + 500 mcg folic acid). It starts in the fourth month of pregnancy and runs for at least 180 days. It goes on for 180 days after the baby is born. Yet many women stop taking them due to nausea or because they feel "fine." Do not stop without asking your doctor. If the tablets upset your stomach, the NHS says taking them with or soon after food can help.
How to Treat Iron Deficiency
Step 1: Improve Your Diet
Best iron foods for Indians: soya chunks, bajra, sesame seeds, rajma, kala chana, masoor dal, moong dal, ragi, jaggery, palak, chicken liver (if non-veg). For the milligrams in each, see our list of iron-rich foods in India.
Add some vitamin C to every iron-rich meal. Try lemon on dal, amla juice, guava, tomato in curry, capsicum, or an orange after the meal.
Keep chai and coffee at least 1 hour away from iron-rich meals. The UK BSG guideline notes that the effect of tea on iron absorption fades within about 60 minutes.
Step 2: Take Iron Supplements If Prescribed
Your doctor sets the dose. The UK BSG guideline (2021) suggests 50–100 mg of elemental iron once a day for most adults. Iron tablets work best on an empty stomach. Taking them with a meal can cut absorption by up to 75% (BSG). If they make you feel sick, the NHS says take them with or soon after food. Darker stools are a common side effect (NHS).
Every other day may work as well. Swiss trials found the body takes in more iron per dose when tablets are taken every other day (Stoffel and others, 2017; also 2020). A 2023 trial in 150 women gave the same total dose, daily or every other day. Ferritin ended up the same. The every-other-day group had fewer stomach side effects (von Siebenthal and others, 2023). Ask your doctor before you change your plan.
Vitamin C with the tablet: the NHS says orange juice may help. The BSG guideline says a large trial found that vitamin C did not improve results, so it does not recommend it. Vitamin C with iron-rich food is a different matter. It helps plant iron absorb.
Step 3: Treat the Root Cause
If you keep getting deficient, find out why:
- Heavy periods → see a gynaecologist
- Gut bleeding → see a gastroenterologist
- Parasites → stool test + deworming
- Repeated pregnancies → family planning guidance
Step 4: Retest After Treatment
Do not stop supplements when you feel better. Hemoglobin usually starts to rise within 2 weeks. The BSG guideline says to check the response in the first 4 weeks. Then keep taking iron for about 3 months after hemoglobin is normal, to refill your iron stores. The NHS says a course usually lasts about 6 months. Your doctor will retest your blood to decide when to stop.
Government IFA Schedule (Anaemia Mukt Bharat)
These are free preventive doses from the NHM. They are not a treatment plan for someone who already has anemia.
- Children 6–59 months: 1 ml IFA syrup twice a week (20 mg iron + 100 mcg folic acid per ml)
- Children 5–10 years: 1 pink tablet a week (45 mg iron + 400 mcg folic acid)
- Adolescents 10–19 years: 1 blue tablet a week (60 mg iron + 500 mcg folic acid)
- Women 20–49 years, not pregnant or breastfeeding: 1 red tablet a week (60 mg iron + 500 mcg folic acid)
- Pregnant and breastfeeding women: 1 red tablet a day, as above
How Iron Deficiency Affects Daily Life
- Work: Lower productivity, slower physical work, more sick days, reduced endurance
- School: Poor attention, lower exam scores, slower learning, more daytime sleepiness
- Immunity: More frequent infections, slower recovery
- Mood: Irritability, low motivation, reduced quality of life
A review of 29 studies looked at iron and work. It found strong proof that moderate and severe iron deficiency anemia lowers how much work people can do (Haas and Brownlie, 2001). WHO also says anemia hurts school results and work output. This is not just a health issue — it is a development issue.
The Gold Nugget: The Surprising Truth About Indian Anemia
Here is the surprising fact: not all anemia in India is iron deficiency.
NFHS-5 counts anemia. But anemia has many causes. Low iron is one. Others are low vitamin B12, low folate, malaria, other infections and long-term illness. Some come from genetic conditions like sickle cell and thalassemia trait. WHO lists these two traits among the largest causes of anemia in the world.
India's own data shows this. A CNNS study looked at 11,237 children aged 1–4. Of them, 40.5% had anemia. But only 30.0% had anemia plus low iron, B12 or folate (Yadav and others, 2024). In Indian teens, low iron was the strongest link to anemia. Blood disorders passed down in families came second (Scott and others, 2022).
This means: giving iron tablets to everyone with low hemoglobin is not the right approach. Many people need B12, folate, or treatment for an underlying condition. Taking iron when you do not need it can cause constipation, stomach pain, and in rare cases, iron overload.
Always test — do not self-treat. A CBC + ferritin + B12 panel is the minimum to understand your anemia.
Summary
- 57% of Indian women and 67% of children under 5 are anemic (NFHS-5)
- Iron deficiency has 3 stages — ferritin falls first, hemoglobin falls last
- 12 signs: from tiredness and brain fog to pale skin and brittle nails
- Most important test: ferritin, not just hemoglobin
- Surprising causes: heavy periods, tea with meals, intestinal parasites, short-interval pregnancies
- Fix: iron-rich foods + vitamin C at every meal + avoid chai with meals + treat root cause + supplements under medical guidance
- Not all anemia is iron deficiency — test before treating
Frequently Asked Questions
How many Indians are iron deficient?
We could not find a national survey that tested iron stores in Indian adults. NFHS-5 (2019–21) tested hemoglobin: 57% of women and 25% of men aged 15–49 were anemic. The CNNS (2016–18) tested ferritin in children and teens. It found iron deficiency in 32% of children aged 1–4, 17% aged 5–9 and 22% aged 10–19.
What CBC results suggest iron deficiency?
Low hemoglobin with a low MCV (small red cells) and a low MCH (pale red cells) points to iron deficiency. But a CBC cannot confirm it, because thalassemia trait can look the same. Ask for a ferritin test too. From age 5 up, ferritin below 15 ng/mL means iron stores are empty (WHO 2020).
What ferritin level means iron deficiency?
WHO (2020) uses ferritin below 15 ng/mL from age 5 up, and below 12 ng/mL for children under 5. Ferritin rises with infection or inflammation, so then WHO uses below 70 ng/mL from age 5 up. The UK BSG guideline treats below 30 ng/mL as low iron stores.
What hemoglobin level counts as anemia?
The WHO 2024 guideline sets anemia as hemoglobin below 13.0 g/dL in men and below 12.0 g/dL in women who are not pregnant. In pregnancy the cut-off is 11.0 g/dL, or 10.5 g/dL in the second trimester. Children have their own cut-offs by age.
Can I check for iron deficiency at home?
No. There is no reliable home test. Pale eyelids or nail beds can hint at anemia, but a 2023 review found these checks miss many cases. Only a blood test with ferritin can show low iron stores.
How long does it take to fix iron deficiency?
Hemoglobin usually starts to rise within 2 weeks of iron tablets. The UK BSG guideline says to keep taking iron for about 3 months after hemoglobin is normal, to refill your stores. The NHS says a course usually lasts about 6 months.
Should I take iron tablets without a blood test?
It is best not to. Anemia can also come from low B12, low folate, infections or inherited blood disorders, and iron will not fix those. Get a CBC and a ferritin test first. The free government IFA tablets for set groups, such as pregnant women, are a separate public-health program. For those, follow your doctor or health worker.
Related Reading
- Iron-Rich Foods in India: Complete List With Exact Milligrams
- Iron-Rich Smoothie: 5 Blends for Low Hemoglobin
- Ragi Flour Benefits, Nutrition and Uses
- Vitamin D Deficiency: 10 Signs, Causes and How to Fix It
Sources
- NFHS-5 (2019–21) anemia figures and state annexure: Ministry of Health and Family Welfare, PIB release "Anaemia Mukt Bharat", 4 February 2022
- Comprehensive National Nutrition Survey 2016–18, National Report (MoHFW, UNICEF and Population Council, 2019), chapter 6: anemia and iron deficiency
- WHO. Guideline on haemoglobin cutoffs to define anaemia in individuals and populations (2024)
- WHO. Guideline on use of ferritin concentrations to assess iron status in individuals and populations (2020)
- WHO. Anaemia fact sheet
- National Health Mission. Anaemia Mukt Bharat IFA dose schedule
- ICMR-NIN. Nutrient Requirements for Indians 2020, brief note (Table 4)
- Snook and others. British Society of Gastroenterology guidelines for iron deficiency anaemia in adults. Gut, 2021
- Stoffel and others. Alternate-day vs consecutive-day iron supplements. Lancet Haematology, 2017; also Haematologica 2020 (PMID 31413088) and von Siebenthal and others, eClinicalMedicine 2023 (PMID 38021373)
- NHS. Iron deficiency anaemia; NHS. Heavy periods
- MedlinePlus. Ferritin blood test; MedlinePlus pages for hemoglobin, serum iron, TIBC and RBC indices
- Vyas and others. Accuracy of physical examination to diagnose anemia: a systematic review. Indian J Hematol Blood Transfus, 2023 (PMID 36699436)
- Yadav and others. Anemia due to micronutrient deficiencies in children aged 12–59 months, CNNS. PLOS Global Public Health, 2024 (PMID 38236794); Scott and others. Anaemia in Indians aged 10–19 years. Maternal & Child Nutrition, 2022 (PMID 35719126)
- Hurrell and others. Inhibition of non-haem iron absorption by polyphenol-containing beverages. British Journal of Nutrition, 1999 (PMID 10999016); Abbaspour and others. Review on iron and its importance for human health. J Res Med Sci, 2014 (PMID 24778671); Haas and Brownlie. Iron deficiency and reduced work capacity. J Nutr, 2001 (PMID 11160598)
