About This Nutrition & Vitamin Calculator
This free online Nutrition & Vitamin Calculator is one of the most comprehensive nutrition tools available in India. Unlike basic calorie counters, this tool gives you a complete personalized micronutrient profile — covering all 13 essential vitamins (Vitamin A, B1, B2, B3, B5, B6, B7, B9, B12, C, D, E, K) and 10 essential minerals (Calcium, Iron, Magnesium, Zinc, Potassium, Phosphorus, Sodium, Selenium, Iodine, Copper) — along with your daily macronutrient needs for Protein, Carbohydrates, Fat, Fiber, and Water.
All recommended values are based on WHO (World Health Organization), NIH (National Institutes of Health, USA), and ICMR (Indian Council of Medical Research) Recommended Dietary Allowances (RDA). Values are adjusted specifically for your age, gender, body weight, height, and activity level. Special adjustments are made for pregnant women, breastfeeding mothers, senior citizens, teenagers, and vegetarians/vegans.
🏆 Why This Calculator Is Different
✅ Covers 13 Vitamins + 10 Minerals + 6 Macronutrients = 29 nutrients in one report
✅ Values adjust based on age, gender, weight, activity & health condition
✅ Shows top food sources (Indian diet compatible) for every nutrient
✅ Highlights deficiency symptoms so you know what to watch for
✅ Flags India-specific common deficiencies (B12, D, Iron, Iodine)
✅ Separate values for pregnant, lactating, senior & teen individuals
✅ 100% free — no login, no app download, works on mobile
Complete Guide to All 13 Essential Vitamins
Vitamins are organic compounds that your body cannot produce on its own (or not in sufficient amounts) and must obtain from food. There are 13 essential vitamins — 4 fat-soluble (A, D, E, K) and 9 water-soluble (C and 8 B vitamins). Each plays unique and critical roles in your health. Here is a complete guide:
🅰️ Vitamin A (Retinol / Beta-Carotene)
What it does: Vitamin A is essential for eye health and vision (especially night vision), immune system function, skin cell growth and repair, and reproduction. It acts as an antioxidant when in the form of beta-carotene (found in plants).
Daily requirement: Adult men need 900 mcg RAE/day, adult women need 700 mcg RAE/day. Pregnant women need 770 mcg, breastfeeding women need 1300 mcg.
Best Indian food sources: Carrots, sweet potato, pumpkin, spinach, mango, papaya (plant sources give beta-carotene which converts to Vitamin A). Animal sources: liver, egg yolk, full-fat milk, fish.
Deficiency signs: Night blindness (unable to see in dim light), dry skin, frequent infections, dry eyes (xerophthalmia). Severe deficiency causes permanent blindness and is a major public health concern in children in India.
🅱️ Vitamin B Complex — The 8 B Vitamins
The B vitamins are a family of 8 water-soluble vitamins that work together to support energy production, nerve function, red blood cell formation, DNA synthesis, and metabolism. Being water-soluble, they are not stored in the body (except B12) and must be consumed daily.
⚡Vitamin B1 — Thiamine
Energy converter
RDA: 1.1–1.2 mg/day
Converts carbohydrates from food into energy. Essential for nerve function and heart health. Severe deficiency causes Beriberi — nerve damage and heart failure. Common in people who eat mostly polished white rice.
🌿 Whole grains, brown rice, dal, sunflower seeds, nuts, peas, beans
👁️Vitamin B2 — Riboflavin
Growth vitamin
RDA: 1.1–1.3 mg/day
Essential for energy production, red blood cell formation, and eye and skin health. Helps your body use other B vitamins. Deficiency causes cracked lips, sore throat, red eyes, and skin problems.
🌿 Milk, curd, paneer, almonds, mushrooms, spinach 🍖 Eggs, chicken, liver
🧠Vitamin B3 — Niacin
Skin and brain vitamin
RDA: 14–16 mg NE/day
Needed for DNA repair, energy metabolism, and healthy skin. Helps lower bad cholesterol (LDL). Severe deficiency causes Pellagra — the "3 Ds": Dermatitis, Diarrhea, Dementia. Common in maize-dependent diets.
🌿 Peanuts, brown rice, mushrooms, whole wheat, dal 🍖 Chicken, tuna, liver
🦠Vitamin B6 — Pyridoxine
Mood and brain vitamin
RDA: 1.3–1.7 mg/day
Critical for brain health — produces serotonin, dopamine, and norepinephrine (mood chemicals). Also essential for immune function and protein metabolism. Deficiency causes depression, confusion, irritability, and weak immunity.
🌿 Chickpeas, banana, potato, pistachio, sunflower seeds 🍖 Chicken, salmon, tuna
🤰Vitamin B9 — Folate / Folic Acid
Pregnancy vitamin
RDA: 400 mcg / 600 mcg (pregnant)
Absolutely critical for DNA synthesis and cell division. Most important vitamin during pregnancy — deficiency in early pregnancy causes neural tube defects (spina bifida). Also prevents anemia and supports heart health.
🌿 Spinach, dal, rajma, chana, broccoli, beetroot, avocado, fortified cereals
🩸Vitamin B12 — Cobalamin
⚠️ Veg deficiency risk
RDA: 2.4 mcg/day (2.6 pregnant)
Most commonly deficient vitamin in vegetarians in India. Essential for nerve function, red blood cell formation, and brain health. Deficiency causes anemia, numbness/tingling in hands and feet, memory loss, depression, and irreversible nerve damage.
🌿 Milk, curd, paneer, fortified cereals, nutritional yeast 🍖 Eggs, fish, chicken, meat
🍊 Vitamin C (Ascorbic Acid)
What it does: Vitamin C is a powerful antioxidant and one of the most important vitamins for overall health. It is essential for immune system function, collagen production (skin, joints, wound healing), iron absorption from plant foods, and protection against oxidative stress.
Daily requirement: Men need 90 mg/day, women need 75 mg/day. Smokers need an extra 35 mg. Pregnant women: 85 mg, breastfeeding: 120 mg.
Best Indian sources: Amla (Indian Gooseberry) is the richest source of Vitamin C in the world — 600–700 mg per 100g (about 10x more than orange). Also: guava, lemon, orange, kiwi, green bell pepper, tomato, broccoli.
Deficiency signs: Scurvy (rare today), bleeding gums, slow wound healing, fatigue, easy bruising, frequent colds. Tip: Eat Vitamin C rich foods with iron-rich foods (like dal with lemon) to double iron absorption.
☀️ Vitamin D (Calciferol — The Sunshine Vitamin)
What it does: Vitamin D is technically a hormone, not just a vitamin. It is essential for calcium absorption and bone strength, immune system regulation, muscle function, mood and mental health (linked to depression), and prevention of several chronic diseases.
Daily requirement: Adults (19–70 years): 600 IU (15 mcg)/day. Adults over 70: 800 IU (20 mcg)/day.
Why it is so commonly deficient in India: Despite India being a sunny country, Vitamin D deficiency affects an estimated 70–90% of Indians. Reasons: indoor lifestyle, dark skin (requires more sun exposure to produce Vitamin D), clothing that covers the body, air pollution blocking UV rays, and very few natural food sources.
How to get it: The best source is direct morning sunlight (before 10 AM or after 4 PM) on skin — 15–30 minutes, 3–4 days per week. Food sources: fatty fish (salmon, sardines), egg yolk, cod liver oil, fortified milk. Supplementation is recommended for most Indians after blood test confirmation.
🛡️ Vitamin E (Tocopherol)
What it does: Vitamin E is a fat-soluble antioxidant that protects cells from oxidative damage caused by free radicals. Essential for immune function, skin health, eye health, and may reduce risk of heart disease and cancer.
Daily requirement: 15 mg/day for adults. Breastfeeding: 19 mg/day. Smokers need more.
Best sources: Sunflower seeds, almonds, wheat germ oil, peanut butter, spinach, avocado, mango, pumpkin. Good news: deficiency is rare in India in healthy individuals eating a normal diet.
🩸 Vitamin K (Phylloquinone K1 / Menaquinone K2)
What it does: Vitamin K is essential for blood clotting (without it, even a small cut would not stop bleeding), bone metabolism (works with Vitamin D and Calcium), and preventing calcium buildup in arteries. K1 is found in plants, K2 is found in fermented foods and some animal products.
Daily requirement: Men: 120 mcg/day, Women: 90 mcg/day.
Best sources: Spinach, mustard greens (sarson), methi, broccoli, soybean oil, natto (fermented soy). Note: If you take blood-thinning medication (warfarin), consult your doctor before increasing Vitamin K intake.
Complete Guide to 10 Essential Minerals
Minerals are inorganic elements found in food and water that your body uses for hundreds of functions — from building bones and making hormones to carrying oxygen in the blood and regulating your heartbeat. Unlike vitamins, minerals come from the earth and water and enter your body through plants and animals that absorb them.
🦷Calcium
Bone & teeth builder
RDA: 1000–1200 mg/day
99% of body's calcium is stored in bones and teeth. Also essential for muscle contraction, nerve signaling, blood clotting, and heart rhythm. Deficiency leads to osteoporosis, brittle bones, muscle cramps, and poor dental health. Women over 50 and all senior adults need 1200 mg/day.
🌿 Milk, curd, paneer, ragi (1 cup = ~350mg), sesame seeds (til), tofu, broccoli, almonds
🩸Iron
⚠️ Most deficient in India
RDA: 8 mg (men) / 18 mg (women)
Iron is the central component of hemoglobin — the protein in red blood cells that carries oxygen from lungs to every cell. Iron-deficiency anemia is the most common nutritional deficiency in India, affecting over 50% of women. Symptoms: fatigue, pale skin, shortness of breath, poor concentration, cold hands & feet. Always consume with Vitamin C for better absorption.
🌿 Spinach, dal, rajma, tofu, pumpkin seeds, pomegranate 🍖 Liver, red meat, chicken
💪Magnesium
Relaxation & energy mineral
RDA: 310–420 mg/day
Involved in over 300 enzyme reactions in the body. Critical for energy production (ATP), muscle and nerve function, protein synthesis, blood pressure regulation, blood sugar control, and bone health. Deficiency causes muscle cramps, anxiety, insomnia, constipation, migraines, and high blood pressure.
🌿 Dark chocolate, pumpkin seeds, almonds, banana, spinach, avocado, brown rice, black beans
🛡️Zinc
Immunity & healing mineral
RDA: 8 mg (women) / 11 mg (men)
Essential for immune system function, wound healing, DNA synthesis, cell division, taste and smell perception, and testosterone production in men. Zinc from plant sources (phytate-bound) is less bioavailable than animal sources. Vegetarians may need up to 50% more zinc. Deficiency causes frequent illness, slow wound healing, hair loss, loss of taste/smell, poor growth in children.
🌿 Pumpkin seeds, chickpeas, cashews, oats, dairy 🍖 Oysters (highest), red meat, crab, chicken
❤️Potassium
Heart & blood pressure mineral
AI: 2600–3400 mg/day
Works opposite to sodium — potassium helps lower blood pressure and maintain healthy heart rhythm. Essential for muscle function, fluid balance, nerve transmission, and kidney health. Most Indians eat too little potassium and too much sodium, which raises cardiovascular risk. Increase fruits and vegetables to boost potassium.
🌿 Banana, sweet potato, spinach, avocado, coconut water, orange, tomato, dal, potato
RDA: 150 mcg / 220 mcg (pregnant)
Iodine is required to make thyroid hormones (T3 and T4) which control metabolism, growth, and brain development. Iodine deficiency is the leading cause of preventable brain damage in children worldwide. In India, iodine deficiency was widespread before iodized salt was introduced. Pregnant women with iodine deficiency risk having children with intellectual disabilities.
🌿 Iodized salt (main source in India), dairy, seaweed 🍖 Fish, shrimp, eggs
Common Nutritional Deficiencies in India
India faces a unique "double burden of malnutrition" — undernutrition in rural areas alongside obesity and micronutrient deficiencies in urban populations. Here are the most common deficiencies Indians should watch for:
⚠️ Top 6 Nutritional Deficiencies in India (ICMR / NFHS Data)
1. Iron Deficiency Anemia — Affects over 50% of women and 20% of men. Children under 5 are also heavily affected. More common in vegetarians and women of reproductive age.
2. Vitamin D Deficiency — Estimated 70–90% of Indians are deficient despite living in a sunny country. Causes weak bones, poor immunity, depression, and increased infection risk.
3. Vitamin B12 Deficiency — Extremely common in vegetarians and vegans since B12 is found almost exclusively in animal products. Causes nerve damage, anemia, and cognitive decline.
4. Iodine Deficiency — Still present in non-coastal, hilly regions (Himalayan belt, Northeast). Using iodized salt is the most effective prevention.
5. Calcium Deficiency — Common in those who avoid dairy. India has one of the lowest calcium intakes in Asia, leading to high rates of osteoporosis.
6. Folate / Folic Acid Deficiency — Especially in women of reproductive age. Critical to supplement 3 months before and during early pregnancy to prevent birth defects.
RDA Values by Age & Gender — Reference Table
RDA (Recommended Dietary Allowance) is the average daily intake level sufficient to meet the nutrient requirement of 97–98% of healthy individuals in a given life stage and gender group. Below are key RDA values based on ICMR and NIH guidelines:
| Nutrient |
Adult Man |
Adult Woman |
Pregnant |
Breastfeeding |
Senior (65+) |
| Protein | ~0.8–1.1g/kg | ~0.8–1.0g/kg | +25g/day | +19g/day | ~1.0–1.2g/kg |
| Vitamin A | 900 mcg | 700 mcg | 770 mcg | 1300 mcg | 900/700 mcg |
| Vitamin C | 90 mg | 75 mg | 85 mg | 120 mg | 90/75 mg |
| Vitamin D | 600 IU | 600 IU | 600 IU | 600 IU | 800 IU |
| Vitamin B12 | 2.4 mcg | 2.4 mcg | 2.6 mcg | 2.8 mcg | 2.4 mcg |
| Folate (B9) | 400 mcg | 400 mcg | 600 mcg | 500 mcg | 400 mcg |
| Calcium | 1000 mg | 1000 mg | 1000 mg | 1000 mg | 1200 mg |
| Iron | 8 mg | 18 mg | 27 mg | 9 mg | 8 mg |
| Magnesium | 400 mg | 310 mg | 350 mg | 310 mg | 420/320 mg |
| Zinc | 11 mg | 8 mg | 11 mg | 12 mg | 11/8 mg |
| Potassium | 3400 mg | 2600 mg | 2900 mg | 2800 mg | 3400/2600 mg |
| Iodine | 150 mcg | 150 mcg | 220 mcg | 290 mcg | 150 mcg |
Vegetarian & Vegan Nutrition Tips for India
India has the world's largest vegetarian population — estimated 300–400 million people. While a well-planned vegetarian diet is extremely healthy and can meet most nutrient needs, certain nutrients require special attention:
- Vitamin B12: Found almost exclusively in animal products. Strict vegetarians and vegans MUST supplement. Get your B12 blood level tested annually. Fortified milk and nutritional yeast are plant options but often not sufficient.
- Iron: Plant-based iron (non-heme iron) is less easily absorbed than animal iron (heme iron). To maximize absorption, always eat iron-rich foods (spinach, dal, rajma) WITH Vitamin C sources (lemon, amla, tomato). Avoid tea/coffee 1 hour before/after iron-rich meals (tannins block absorption).
- Zinc: Plant foods contain phytates that reduce zinc absorption. Vegetarians may need 50% more zinc. Best plant sources: pumpkin seeds, sesame seeds (til), chickpeas, cashews. Soaking/sprouting legumes increases zinc bioavailability.
- Omega-3 Fatty Acids: ALA from flaxseed, walnuts, chia seeds converts poorly to DHA/EPA (brain-essential omega-3). Consider algae-based DHA supplement if not eating fish.
- Vitamin D: No advantage over non-vegetarians since few foods (mostly fish) contain D. Get morning sunlight and consider supplementation after blood test.
- Calcium: Ensure adequate dairy intake or choose fortified plant milks. Ragi is an excellent plant-based calcium source (100g ragi contains ~344mg calcium).
- Protein Completeness: Most plant proteins are "incomplete" (missing some essential amino acids). Combine dal + rice or roti + dal at the same meal to get all essential amino acids. Other complete plant proteins: soybean, tofu, quinoa.
Frequently Asked Questions (FAQ)
How much protein do I need per day in India? ▼
The ICMR recommends 0.8–1.0 grams of protein per kg of body weight for sedentary adults. For a 60 kg person, that is 48–60 grams per day. Active individuals need 1.2–1.6 g/kg, and athletes/bodybuilders may need up to 2.0 g/kg. Pregnant women need an additional 25g/day. Our calculator adjusts protein recommendation based on your weight and activity level automatically. For reference: 1 whole egg = 6g protein, 100g cooked chicken = 31g, 1 cup cooked dal = 18g, 100g paneer = 18g, 1 cup milk = 8g protein.
How much Vitamin D should I take per day? ▼
The official RDA for Vitamin D is 600 IU (15 mcg) per day for adults up to 70 years, and 800 IU for those above 70. However, many nutrition experts and the Endocrine Society recommend 1500–2000 IU/day for adults to maintain optimal blood levels (above 30 ng/mL). In India, where deficiency is extremely common, doctors often prescribe 60,000 IU once a week for 8–12 weeks to correct deficiency, followed by a maintenance dose. Always get a blood test (25-OH Vitamin D) before supplementing. Do not self-supplement in very high doses as Vitamin D toxicity is possible (though rare).
What is the daily iron requirement for Indian women? ▼
The RDA for iron in premenopausal adult women is 18 mg/day — more than double the male requirement of 8 mg/day — due to monthly blood loss during menstruation. Teenage girls need 15 mg/day. Pregnant women need 27 mg/day (iron needs nearly triple during pregnancy for fetal development and increased blood volume). Post-menopausal women (after periods stop) only need 8 mg/day. Signs of iron deficiency: fatigue, pale inner eyelids, spoon-shaped nails, craving for ice or mud (pica), shortness of breath, poor concentration. Get a hemoglobin and serum ferritin test to check iron status.
How much calcium do vegetarians need, and can they get it without dairy? ▼
All adults need 1000 mg of calcium per day (1200 mg for women over 50 and all adults over 70). Vegetarians who consume dairy (lacto-vegetarian) can easily meet this from milk, curd, and paneer. Vegans and those who avoid dairy need to rely on: Ragi (finger millet) — one of the richest plant sources (344 mg/100g), sesame seeds/til (975 mg/100g of seeds), tofu made with calcium sulfate, green leafy vegetables (spinach, methi, sarson), almonds, and fortified plant-based milks. Note: Calcium from spinach is less well-absorbed because of oxalates — ragi and sesame are better vegetarian calcium sources than spinach for Indians.
Which vitamins and minerals should vegetarians/vegans supplement? ▼
Based on evidence and common deficiency patterns in India, vegetarians should prioritize: 1. Vitamin B12 (supplement 500–1000 mcg/day or 2000 mcg/week — essential, cannot get from plant foods in adequate amounts). 2. Vitamin D3 (supplement 1000–2000 IU/day or get blood tested). 3. Omega-3 DHA (algae-based supplement if not eating fish). 4. Iron (only if blood test shows deficiency — do not self-supplement iron without testing as excess iron is harmful). 5. Zinc (may need slightly higher intake through diet; supplement only if blood test shows deficiency). 6. Iodine (use iodized salt; vegans who avoid dairy are at risk). Consult a doctor or registered dietitian before starting any supplement.
What is RDA and how is it different from UL (Upper Limit)? ▼
RDA (Recommended Dietary Allowance) is the average daily intake level sufficient to meet the nutrient requirement of 97–98% of healthy individuals in a specific age and gender group. It is the TARGET intake you should aim for. UL (Tolerable Upper Intake Level) is the maximum daily intake unlikely to cause harmful effects — going above UL from supplements (not food) can cause toxicity. For example, Vitamin A's UL is 3000 mcg/day — exceeding it from supplements can cause liver damage and birth defects. Vitamin D's UL is 4000 IU/day for adults. Food sources rarely cause toxicity; supplement overdose is the main concern. Our calculator shows RDA values — these are your daily targets to aim for through food and supplements combined.
How do I know if I have a vitamin or mineral deficiency? ▼
Many deficiencies are "silent" — you may not notice symptoms until they are severe. The only reliable way to confirm deficiency is through blood tests. Commonly recommended tests in India: Complete Blood Count (CBC) for anemia/iron, 25-OH Vitamin D for Vitamin D status, Serum Vitamin B12 for B12, Serum Ferritin for iron stores, Thyroid Function Test (TSH) for iodine-related thyroid issues, Serum Calcium and Magnesium. Annual health checkups should include these tests, especially for women, vegetarians, senior citizens, pregnant women, and those with chronic illness. Do not self-diagnose or self-supplement based on symptoms alone.
⚠️ Medical Disclaimer
This calculator provides general nutritional guidance based on standard RDA values from WHO, NIH, and ICMR. It is intended for informational purposes only and is NOT a substitute for professional medical advice, diagnosis, or treatment. Individual nutrient needs may vary based on health conditions, medications, genetics, and other factors. If you suspect a nutritional deficiency or have a medical condition, please consult a qualified doctor or registered dietitian. Do not start or stop any supplement without medical guidance.
