What does a woman’s body actually need every day?
If you search online, you’ll find endless answers.
Take magnesium.
Increase your protein.
Take iron.
Don’t take iron.
Take vitamin D.
Take omega-3.
Buy a women’s multivitamin.
Add electrolytes.
Take collagen.
Suddenly, eating well feels like a full-time job.
The reality is simpler.
Your body needs a wide range of nutrients, and for most people the foundation should be a varied, balanced diet rather than an enormous supplement routine.
But some nutrients deserve particular attention during different stages of a woman’s life.
Menstruation can affect iron requirements.
Pregnancy dramatically changes nutritional needs.
Breastfeeding creates additional demands.
And as women age, nutrients involved in maintaining muscle and bone health become increasingly important.
So what are the most important nutrients for women?
Here are 10 worth understanding — what they do, where to find them and when you may need to pay closer attention.
Why Is Nutrition Different for Women?
Women don’t require a completely different diet from men.
The fundamentals of healthy eating remain similar.
But nutritional requirements can differ according to factors including:
- Age
- Menstruation
- Pregnancy
- Breastfeeding
- Menopause
- Physical activity
- Medical conditions
- Dietary restrictions
A menstruating 25-year-old woman may have different priorities from a 65-year-old postmenopausal woman.
A pregnant woman has different requirements again.
And someone following a vegan diet may need to pay particular attention to nutrients that are abundant in animal products.
That’s why the answer to “What vitamins should women take?” isn’t simply:
All of them.
Supplements should have a reason.
Food comes first for many nutrients, while certain supplements are specifically recommended in particular circumstances.
Let’s start with one of the biggest nutritional issues for women.
1. Iron
Why it matters: red blood cells, oxygen transport and normal energy metabolism
Iron is particularly important for women who menstruate because blood loss increases iron requirements.
Iron deficiency can eventually lead to iron deficiency anaemia.
Symptoms can include:
- Tiredness
- Lack of energy
- Shortness of breath
- Heart palpitations
- Headaches
- Pale skin
Heavy periods are a common cause of iron deficiency anaemia in women of reproductive age.
Best food sources of iron
Iron-rich foods include:
- Red meat
- Beans
- Lentils
- Chickpeas
- Fortified breakfast cereals
- Nuts and seeds
- Dark green leafy vegetables
- Dried fruit
Iron from plant foods isn’t absorbed in exactly the same way as iron from animal sources.
Eating foods containing vitamin C alongside plant sources of iron can help your body absorb iron.
For example:
Lentils with tomatoes.
Fortified cereal with berries.
Chickpea salad with peppers.
Should every woman take an iron supplement?
No.
Don’t automatically take high-dose iron because you’re tired.
Too much iron can be harmful, and fatigue has many possible causes.
If you’re experiencing persistent tiredness — particularly alongside heavy periods — speak with your GP about whether iron deficiency could be involved.
For a food-focused starting point, see our guide to what to eat for better energy.
2. Calcium
Why it matters: bones, teeth, muscles and normal nerve function
Bone health deserves attention throughout a woman’s life — not only after menopause.
Calcium is one of the nutrients needed for maintaining normal bones and teeth.
Useful food sources include:
- Milk
- Yoghurt
- Cheese
- Calcium-fortified plant drinks
- Calcium-set tofu
- Sardines with edible bones
- Some green vegetables
Check labels on plant-based alternatives because their calcium content can vary.
Why does calcium matter more as women age?
Women become increasingly conscious of bone health around menopause because declining estrogen levels contribute to bone loss.
That doesn’t mean you need to panic and start taking huge calcium supplements at 50.
Think long-term.
Adequate calcium.
Vitamin D.
Regular weight-bearing activity.
Strength training.
Avoiding smoking.
Keeping alcohol within recommended limits.
Healthy bones are built through years of habits, not one supplement.
3. Vitamin D
Why it matters: bones, muscles and normal immune function
Vitamin D is particularly important for UK readers.
Unlike many nutrients, vitamin D is difficult to obtain in sufficient quantities from food alone.
Your body can make vitamin D when skin is exposed to sunlight, but in the UK sunlight isn’t strong enough during part of the year for adequate vitamin D production.
The NHS advises that adults and children over 4 should consider taking a 10 microgram vitamin D supplement during autumn and winter.
Some people are advised to consider supplementation throughout the year because of a higher risk of vitamin D deficiency.
Food sources of vitamin D
Foods containing vitamin D include:
- Oily fish
- Egg yolks
- Fortified foods
- Some fortified breakfast cereals
But diet alone may not provide enough.
This is one of the few supplement recommendations that applies broadly to the UK population during certain months.
Optional product to compare: Life Extension Vitamin D3, 120 softgels provides 75 µg (3,000 IU) per softgel. That is a high-strength dose: the general UK guidance discussed above is 10 µg daily during autumn and winter, so this product should not be taken as a like-for-like or universal recommendation. Check the guidance where you live and speak with a healthcare professional about whether this dose is appropriate, especially if you take other vitamin D or have a health condition.
4. Folate and Folic Acid
Why it matters: normal cell division and particularly important before and during early pregnancy
Folate is a B vitamin naturally found in foods.
Folic acid is the form used in supplements and fortified foods.
This nutrient becomes particularly important if you’re pregnant or could become pregnant.
In the UK, women who could become pregnant are advised to take 400 micrograms of folic acid daily before pregnancy and until 12 weeks pregnant.
This helps reduce the risk of neural tube defects such as spina bifida.
Some women are advised to take a higher dose under medical guidance because of particular risk factors.
Food sources of folate
These include:
- Broccoli
- Brussels sprouts
- Leafy green vegetables
- Peas
- Chickpeas
- Kidney beans
- Fortified cereals
Eating folate-rich foods is healthy, but during pregnancy the recommended folic acid supplement still matters.
If you’re planning a pregnancy, don’t wait until a positive pregnancy test to start thinking about folic acid.
5. Vitamin B12
Why it matters: red blood cells, nervous system function and DNA synthesis
Vitamin B12 deserves particular attention if you eat little or no animal food.
Naturally occurring B12 is primarily found in animal-derived foods such as:
- Meat
- Fish
- Eggs
- Milk
- Cheese
Some plant-based foods are fortified with vitamin B12.
People following a vegan diet need a reliable source of B12 through fortified foods or supplementation.
What happens if you’re deficient in B12?
Vitamin B12 deficiency can cause symptoms including:
- Extreme tiredness
- Lack of energy
- Pins and needles
- A sore or red tongue
- Mouth ulcers
- Muscle weakness
- Problems with memory or understanding
Some neurological problems caused by B12 deficiency can become serious.
So don’t dismiss persistent symptoms as simply needing more sleep.
6. Iodine
Why it matters: normal production of thyroid hormones
Iodine doesn’t receive nearly as much attention as magnesium on social media.
But it has an essential job.
Your body needs iodine to make thyroid hormones.
Food sources can include:
- Dairy products
- Eggs
- Fish
- Some fortified products
People who avoid dairy and fish may need to pay closer attention to iodine intake.
Be careful with seaweed supplements
More isn’t always better.
Some seaweed and kelp products can contain very high amounts of iodine.
Excessive iodine can also interfere with normal thyroid function.
This is a perfect example of why “natural” doesn’t automatically mean better.
7. Omega-3 Fatty Acids
Why they matter: omega-3 fats form part of a healthy diet, with long-chain omega-3s particularly associated with oily fish
Omega-3 is actually a family of fatty acids.
The main ones you’ll hear about are:
EPA
DHA
and
ALA.
EPA and DHA are found primarily in oily fish.
ALA is found in plant foods.
Foods rich in omega-3
Oily fish sources include:
- Salmon
- Sardines
- Mackerel
- Herring
- Trout
Plant sources of ALA include:
- Chia seeds
- Flaxseeds
- Walnuts
- Rapeseed oil
The NHS recommends eating at least 2 portions of fish each week, including 1 portion of oily fish, although there are additional limits and considerations for girls and women who may become pregnant, are pregnant or are breastfeeding.
If you don’t eat fish, look at your overall diet rather than assuming you automatically need a huge-dose fish-oil supplement.
8. Protein
Why it matters: muscles, tissues, enzymes and many other normal body functions
Protein isn’t just for bodybuilders.
Women need protein throughout life.
And it becomes particularly worth paying attention to as we age because maintaining muscle mass and strength becomes increasingly important.
Good protein sources include:
- Eggs
- Fish
- Poultry
- Lean meat
- Greek yoghurt
- Cottage cheese
- Milk
- Tofu
- Tempeh
- Beans
- Lentils
- Chickpeas
- Nuts and seeds
You don’t necessarily need protein shakes.
They’re convenient for some people, but they’re not mandatory.
Should women eat protein at every meal?
Including a source of protein across your meals can make it easier to meet your overall needs.
For example:
Breakfast: Greek yoghurt, eggs or fortified soy yoghurt.
Lunch: chicken, tuna, beans or lentils.
Dinner: fish, meat, tofu, beans or another protein source.
Snacks: yoghurt, nuts, cheese or other suitable foods.
You don’t need to turn every meal into a protein competition.
9. Magnesium
Why it matters: muscles, nerves and numerous biochemical processes
Magnesium has become one of the internet’s favourite supplements.
Magnesium glycinate.
Magnesium citrate.
Magnesium spray.
Magnesium bath salts.
Magnesium before bed.
Magnesium for anxiety.
Magnesium for hormones.
Magnesium for everything.
Here’s the less exciting reality:
Magnesium is an essential mineral.
But that doesn’t mean everybody needs a magnesium supplement.
Food sources include:
- Nuts
- Seeds
- Whole grains
- Beans
- Leafy green vegetables
A varied diet can provide meaningful amounts of magnesium.
If you’re considering supplementation for stress or anxiety specifically, read our guide to supplements for anxiety and stress first.
10. Fibre
Why it matters: digestive health and an overall healthy diet
Fibre isn’t a vitamin or mineral, but it absolutely deserves a place on this list.
Many people don’t eat enough.
Fibre-rich foods include:
- Wholegrain bread
- Oats
- Brown rice
- Wholegrain pasta
- Beans
- Lentils
- Chickpeas
- Fruits
- Vegetables
- Nuts
- Seeds
Rather than obsessing over a specific “superfood,” eating a variety of plant foods is a much more sensible strategy.
Increase fibre gradually if your current intake is low, and make sure you’re drinking enough fluids.
What About Water?
Water isn’t a vitamin either.
But nutrition isn’t complete without hydration.
Your body constantly loses water through:
Breathing.
Sweating.
Urination.
Normal bodily processes.
You need to replace it.
The NHS uses 6 to 8 cups or glasses of fluid a day as a general guide, although individual needs vary and can increase with heat, activity, pregnancy and breastfeeding.
Water is a great choice, but other drinks can also contribute to fluid intake.
Tea and coffee count too.
You don’t need to force yourself to drink four litres of water because somebody online told you it would “flush toxins.”
What Vitamins Should Women Take Every Day?
This is one of the most searched questions in women’s nutrition.
And the answer isn’t:
Every vitamin available in Boots.
Most women should aim to obtain most nutrients from a varied diet.
Supplement needs depend on your circumstances.
However, there are some important UK recommendations.
Vitamin D
Most adults should consider 10 micrograms daily during autumn and winter.
Some people should consider taking vitamin D throughout the year.
Folic acid
If you’re pregnant or could become pregnant, folic acid supplementation is particularly important.
The standard recommendation is 400 micrograms daily before pregnancy and through the first 12 weeks, although some women need a higher prescribed dose.
Vitamin B12
People following a vegan diet need a reliable source of B12, which may include fortified foods and/or supplements.
Other supplements
Iron, calcium, iodine and other nutrients shouldn’t automatically be supplemented at high doses without a reason.
Your needs depend on your diet, symptoms and medical circumstances.
Essential Nutrients for Women in Their 20s and 30s
There’s no special “20s vitamin.”
But this stage of life can include:
Menstruation.
Pregnancy planning.
Pregnancy.
Breastfeeding.
High levels of physical activity.
Busy careers.
So priorities can include:
Iron, particularly with heavy periods.
Folate/folic acid, particularly around pregnancy.
Vitamin D.
Calcium.
Protein.
B12, particularly for vegans.
Your twenties and thirties are also an excellent time to think about bone health rather than waiting until later life.
Essential Nutrients for Women Over 40
Your forties can bring changing nutritional priorities.
For some women, this is also when perimenopause begins.
Pay particular attention to:
- Protein
- Calcium
- Vitamin D
- Fibre
- Overall dietary quality
Combine good nutrition with regular strength and weight-bearing exercise.
If you’re noticing changing periods, sleep, mood or libido, our guide to female hormones explains what may be happening through different stages of life.
Essential Nutrients for Women Over 50
After menopause, maintaining bone and muscle health becomes particularly important.
That makes nutrients such as:
Protein
Calcium
and
Vitamin D
especially relevant as part of a broader healthy lifestyle.
But don’t neglect everything else.
Heart health, fibre intake and maintaining a varied diet matter too.
Healthy ageing isn’t about finding the perfect anti-ageing supplement.
It’s about maintaining the body you’ve got.
Nutrition During Pregnancy
Pregnancy deserves separate consideration because nutritional recommendations change.
Folic acid and vitamin D are particularly important.
There are also foods and supplements that should be limited or avoided during pregnancy.
For example, vitamin A in the form of retinol can be harmful in excessive amounts during pregnancy, which is why pregnant women are advised to avoid supplements containing vitamin A and foods such as liver.
Don’t assume a generic women’s multivitamin is automatically suitable for pregnancy.
Use pregnancy-specific NHS guidance and discuss individual concerns with your midwife, pharmacist or doctor.
Nutrition While Breastfeeding
Breastfeeding also changes nutritional demands.
A varied, balanced diet remains important, alongside adequate fluids.
Vitamin D deserves particular attention for both mother and baby according to individual circumstances and UK guidance.
If you’re breastfeeding and considering supplements, don’t assume every “natural” wellness product is safe simply because it can be bought without a prescription.
Check first.
Can Nutrition Help “Balance Female Hormones”?
Here’s another extremely popular search.
“What should I eat to balance my hormones?”
There isn’t one hormone-balancing diet.
Your body contains many hormones performing different jobs.
You cannot reliably “balance” estrogen, progesterone, cortisol, insulin and thyroid hormones by drinking one smoothie.
Nutrition supports normal physiological function.
But specific hormonal conditions require specific assessment and treatment.
If you’re concerned about hormones, read our complete guide to female hormones, symptoms and hormonal health.
Do You Need a Women’s Multivitamin?
Not necessarily.
A multivitamin can be useful in certain circumstances, particularly when someone’s diet is restricted or a healthcare professional identifies a reason for supplementation.
But a multivitamin doesn’t compensate for an otherwise poor diet.
And more isn’t always better.
Taking several supplements at once can result in unnecessarily high intakes of certain nutrients.
Before buying another bottle, ask:
What nutrient am I trying to get?
Why do I think I’m deficient?
Can I get enough through food?
Is supplementation actually recommended for someone in my circumstances?
That’s a much better strategy than choosing a bottle because it says “WOMEN’S HORMONE WELLNESS” on the front.
Signs You May Have a Nutrient Deficiency
Nutrient deficiencies can produce symptoms, but many symptoms are non-specific.
For example, tiredness can potentially be associated with:
Iron deficiency.
B12 or folate deficiency.
Poor sleep.
Stress.
Thyroid problems.
Insufficient food intake.
Many other health conditions.
So symptoms alone don’t tell you which supplement to take.
If you’re persistently tired, losing hair, experiencing neurological symptoms or otherwise feeling unwell, seek medical advice rather than creating your own supplement diagnosis.
How to Improve Your Nutrition Without Dieting
Healthy eating doesn’t need to involve calorie counting or an enormous list of forbidden foods.
Try adding before subtracting.
Instead of:
“I need to stop eating carbohydrates.”
Try:
“Can I add more vegetables to dinner?”
Instead of:
“I need to stop snacking.”
Try:
“Can I choose a snack containing fruit and protein sometimes?”
Instead of:
“I need a perfect diet.”
Try:
“Can I make today’s lunch slightly more nutritious?”
Simple changes include:
- Add vegetables to lunch and dinner
- Eat fruit regularly
- Choose wholegrain options more often
- Include protein throughout the day
- Eat beans and pulses regularly
- Include nuts and seeds
- Eat oily fish if appropriate for you
- Drink enough fluids
- Eat enough food overall
Healthy eating isn’t about punishment.
A Simple Day of Nutrient-Rich Eating
You don’t need complicated recipes.
Breakfast
Porridge with milk or fortified plant milk, berries, yoghurt and seeds.
Lunch
Wholegrain wrap with chicken or chickpeas, salad and hummus.
Snack
Fruit with Greek yoghurt or a handful of nuts.
Dinner
Salmon or tofu with potatoes, broccoli and another vegetable.
Evening
Something you actually enjoy.
Yes, chocolate can still exist inside a nutritious diet.
Your body doesn’t require dietary perfection.
10 Essential Nutrients for Women at a Glance
Iron: particularly important for menstruating women and anyone at risk of iron deficiency.
Calcium: supports normal bones and teeth.
Vitamin D: important for bones, muscles and immune function.
Folate: particularly important before and during early pregnancy.
Vitamin B12: supports red blood cells and nervous system function.
Iodine: needed for normal thyroid hormone production.
Omega-3: healthy fats available from fish and plant sources.
Protein: essential for muscle and tissue maintenance.
Magnesium: essential mineral involved in numerous body processes.
Fibre: supports digestive health and overall dietary quality.
And don’t forget:
Water.
Sometimes the basics really are the basics for a reason.
The Bottom Line
Women’s nutrition doesn’t need to be complicated.
You probably don’t need a cupboard containing 17 supplements.
You don’t need a detox.
You don’t need a hormone-balancing tea.
And you don’t need to eliminate half the foods you enjoy.
Focus on the fundamentals:
Eat enough.
Eat a varied diet.
Get plenty of plant foods.
Include protein.
Include healthy fats.
Pay attention to iron.
Support your bones with calcium and vitamin D.
Take folic acid when pregnancy is possible or planned.
Get reliable B12 if you’re vegan.
Stay hydrated.
And use supplements when there’s a genuine reason for them.
Nutrition isn’t about eating perfectly.
It’s about giving your body what it needs consistently enough to support you through every stage of life.
Frequently Asked Questions About Women’s Nutrition
What are the most important nutrients for women?
Important nutrients include iron, calcium, vitamin D, folate, vitamin B12, iodine, omega-3 fatty acids, protein, magnesium and fibre. Individual priorities depend on age, diet and life stage.
What vitamins should a woman take every day?
There isn’t one supplement routine appropriate for every woman. In the UK, most adults should consider a 10 microgram vitamin D supplement during autumn and winter. Folic acid is recommended when pregnancy is possible or planned and during early pregnancy. Other supplements depend on individual circumstances.
What vitamins should women over 40 take?
There isn’t a universal “over 40” vitamin regimen. A nutritious diet, sufficient protein, calcium and vitamin D are important, while individual supplement needs depend on diet, health and possible deficiencies.
What nutrients do women need during pregnancy?
Pregnancy increases the importance of several nutrients. Folic acid and vitamin D supplementation are specifically recommended in the UK, while a balanced diet provides many other essential nutrients. Pregnancy also changes which foods and supplements are considered safe.
What nutrients are important during menopause?
Protein, calcium and vitamin D are particularly relevant to muscle and bone health around and after menopause. Fibre and an overall balanced diet also support general health.
How do I know if I’m deficient in vitamins?
Symptoms alone aren’t always reliable because fatigue, hair loss and other complaints can have many causes. A healthcare professional can assess your symptoms and determine whether blood tests or other investigations are appropriate.
Should women take iron supplements?
Not automatically. Iron supplements may be appropriate for diagnosed iron deficiency or particular circumstances, but unnecessary high-dose iron can be harmful. Speak with a healthcare professional if you think you may be deficient.
Is a women’s multivitamin worth taking?
It depends on your diet and circumstances. A multivitamin can help fill particular nutritional gaps but doesn’t replace a balanced diet and isn’t automatically necessary for everyone.
Sources and further reading
Read Next on Live Well Daily
Female Hormones Explained: Your Complete Guide to Symptoms, Periods, Mood, Weight & Energy
What to Eat for Better Energy: A Simple Guide for Women
Low Libido in Women: 12 Common Causes & How to Increase Sex Drive Naturally
7 Best Supplements for Anxiety and Stress in 2027: What the Science Actually Says
How to Improve Your Mental Health: 15 Simple Daily Habits That Actually Help
Why Do I Keep Waking Up at 3AM? 9 Reasons Women Wake Up at Night
Newsletter
Signup for news and special offers!
Please check your inbox to confirm your subscription.
