How much iron do women need per day?

About 18 mg/day for menstruating women from food, more with heavy losses; postmenopause often about 8 mg/day unless deficient.

Best calcium-rich Indian foods for women

Ragi, til, paneer, dahi, drumstick leaves, calcium-set tofu, small fish with bones when acceptable.

Why do women need more iron than men?

Menstruation and reproductive life stages increase iron turnover versus typical adult male losses.

B12 deficiency symptoms in Indian vegetarian women

Fatigue, sore tongue, brain fog, palpitations, neuropathy symptoms; vegans usually need sustained supplementation and lab confirmation.

Folate vs folic acid — which is better?

Folic acid is the proven supplemental form for neural tube defect prevention; food folate still supports overall intake.

How to increase iron absorption from plant foods

Vitamin C at meals, reduce phytate via soaking or sprouting, separate calcium from iron-rich meals.

Omega-3 for women — how much EPA and DHA daily?

Often 250-500 mg combined EPA+DHA for general support; pregnancy needs clinician-specific DHA targets.

Best Indian foods for women's bone health

Ragi, til, dairy, greens, adequate protein, vitamin D, and resistance training.

Medical Notice: This calculator provides general nutritional guidance

Female Nutrition Calculator

Coach Aditya's Female Nutrition protocol calculates iron, calcium, B12, and folate targets using Indian food sources, accounting for phytic-acid blockers most nutrition apps ignore.

Cycle-phase calorie targets • Iron, calcium & B12 priorities • Life stage adjustments by Coach Aditya

📄 Evidence-led🎯 Coach Aditya protocol⚡ Action-focused outputs

This tool provides evidence-based guidance, not medical advice.

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Enter your measurements to calculate your baseline calorie needs

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Life Stage & Cycle Phase

Your hormonal context changes your nutritional needs significantly

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This sets your calorie target and macro ratios

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Trusted by 10,000+ women

Nutrition Science
Built for Female Physiology

Most calorie calculators ignore cycle phases, iron status, and hormonal life stages. This tool accounts for all of it — because women's nutritional needs aren't the same every week.

5Analysis engines

5Life stages supported

Female Nutrition Calculator: Cycle-Phase Targets & Micronutrient Priorities

Women's nutritional needs change throughout the menstrual cycle, across life stages, and in response to iron status, bone density, and hormonal shifts. A generic calorie calculator built for men — or even a non-gendered tool — misses crucial female-specific requirements: the elevated iron demand during menstruation, the calcium and vitamin D urgency post-menopause, the luteal-phase calorie increase, and the folate requirement in reproductive years.

Primary Method Female Methodology

This calculator uses the Primary Method equation for women: BMR = (10 × kg) + (6.25 × cm) − (5 × age) − 161. Published in the Journal of the American Dietetic Association (1990), this methodology shows the highest accuracy for females across multiple independent validation studies. Total Daily Energy Expenditure (TDEE) multiplies BMR by your activity factor, then applies life-stage adjustments.

Cycle Phase Nutrition

Menstruation (Days 1–5): Focus on iron repletion (18–25 mg/day), anti-inflammatory omega-3s, and magnesium for cramp reduction. Avoid excessive caffeine which blocks iron absorption.

Follicular (Days 6–13): Rising estrogen supports carbohydrate metabolism. Emphasise lean protein, complex carbs, and zinc for follicle development.

Ovulation (Day 14): Peak metabolic rate. Antioxidant-rich foods (vitamin E, selenium) support egg health. Zinc and manganese are key.

Luteal (Days 15–28): Progesterone elevates BMR by 100–150 kcal/day. Increase complex carbohydrates, magnesium glycinate (reduces PMS), and vitamin B6 for mood support.

Female Micronutrient Priorities

Iron: Menstruating women need 18 mg/day; those with heavy periods may need 25 mg/day. Pair plant-based iron with vitamin C. Avoid calcium supplements at the same meal — they compete for absorption.

Calcium + Vitamin D: Women under 50 need 1000 mg calcium daily; over 50, 1200 mg. Pair with 2000–4000 IU vitamin D3 and 100 mcg vitamin K2 to direct calcium to bones rather than arteries.

Folate: Critical in reproductive years for neural tube development. 400–600 mcg/day from leafy greens, lentils, and fortified foods.

B12: Especially important for vegetarians and vegans. 2.4 mcg/day minimum; absorption declines with age, making supplementation prudent after 50.

Magnesium: 310–400 mg/day. Magnesium glycinate form preferred for sleep and PMS. Found in dark chocolate, pumpkin seeds, and almonds.

Life Stage Adjustments

Breastfeeding: Add 400–500 kcal/day above maintenance TDEE. Prioritise calcium (1300 mg/day), iodine, choline, and omega-3 DHA for infant brain development.

Perimenopause: Shifting hormones alter fat distribution and insulin sensitivity. Emphasise protein (1.8–2.0 g/kg), resistance training, phytoestrogens (soy, flaxseed), and reduced refined carbohydrate intake.

Postmenopause: TDEE decreases approximately 5% due to reduced estrogen. Calcium and vitamin D become critical. Creatine monohydrate (3–5 g/day) shows emerging evidence for bone density and cognitive function in this population.

Frequently Asked Questions

Menstruating women typically need about 18 mg/day from food (more with heavy losses). Pregnancy needs are higher; postmenopause often drops to about 8 mg/day unless deficient. Vegetarians should assume lower absorption from plant iron and use vitamin C at meals, avoid tea or coffee with iron-rich meals, and split iron supplements away from calcium.

Ragi, sesame (til), paneer, dahi, small fish with bones where acceptable, drumstick leaves (moringa), and calcium-set tofu. Pair with adequate vitamin D and K2-directed protocols when supplementing so calcium supports bone, not soft tissue.

Monthly blood loss from menstruation increases iron turnover. Growth stages, pregnancy, and lactation add further demand. Men after adolescence have minimal programmed iron loss, so baseline requirements stay lower unless bleeding or athletic hemolysis occurs.

Fatigue, tongue soreness, brain fog, palpitations, tingling hands or feet, and mood changes can appear before labs crash. Dairy and eggs help lacto-ovo diets; strict vegans usually need a maintained supplement (often 500–1000 mcg cyanocobalamin weekly or daily per clinician guidance). Confirm with serum B12 and methylmalonic acid if symptoms persist.

Folate is the umbrella term for food-derived vitamers; folic acid is the synthetic oxidised form used in fortification and tablets. For population prevention of neural tube defects, folic acid is proven and stable. Whole-food folate still matters for general intake; many women use a supplement containing folic acid or 5-MTHF per medical advice and genetics.

Add vitamin C at the same meal (lemon on dal, amla, citrus), soak or sprout grains and legumes to reduce phytate, cook in cast iron for small extra contribution, and separate calcium-rich foods or supplements by several hours from iron-focused meals.

General heart and inflammation support often uses combined EPA+DHA roughly 250–500 mg/day from oily fish or algae oil; pregnancy and lactation protocols may target higher DHA with clinician oversight. Land-based diets in India may need algae-based DHA if fish intake is low.

Calcium from ragi, til, dairy, greens, and fortified foods; protein from dal, soy, milk, eggs, and fish; magnesium from nuts, seeds, and whole grains; vitamin D from sun strategy plus supplements when indicated. Resistance training remains the non-negotiable bone stimulus alongside nutrition.