How bones change as we age
Bone is living tissue. Your body keeps breaking down old bone and building new bone all your life.
When you are young, you build more than you lose. Later on, the balance can shift, and bones can become weaker and easier to break.
This is why bone health is worth some attention before problems appear.
The NHS guidance on preventing osteoporosis focuses on food, exercise and a few lifestyle habits. None of them needs special equipment or expensive products.
Read the Healthy Aging Guide for the bigger pictureCalcium and vitamin D: the key nutrients
Calcium
Calcium is the main mineral in bone. The NHS says adults need 700 mg a day.
Good food sources listed by the NHS include dairy products, leafy green vegetables, dried fruit and tofu.
A quick idea for a day: a bowl of yogurt at breakfast, a leafy salad at lunch and tofu in a stir fry at dinner.
Vitamin D
Vitamin D helps your body use calcium. The NHS says all adults need 10 micrograms a day.
Sources include oily fish, red meat, liver and egg yolks, plus foods with added vitamin D.
Sunlight also helps. The NHS notes that in its region regular sun exposure from late March through September triggers vitamin D production. Where you live changes how much sunlight you get, so ask your doctor what suits you.
The NHS also says a daily supplement may help, since food alone can fall short. Ask your doctor or pharmacist before starting any supplement.
Want an easy food plan to go with this?
Our Healthy Eating Guide shows how to build balanced meals without counting every number.
Exercise that helps bones
Bones respond to load. When you put gentle stress on them, they respond by staying stronger.
The NHS names two main types of exercise for bone health: weight-bearing exercise and resistance exercise.
Weight-bearing exercise
This is any activity where you carry your own body weight on your feet and legs. Examples include walking, brisk walking, running and dancing.
If you are new to it, start with our guide to walking for fitness.
Muscle-strengthening exercise
Lifting, pushing and pulling also load your bones. The NHS gives weightlifting and press-ups as examples.
At home, you can begin with the sit-to-stand and mini-squat.
How much is enough
For adults aged 19 to 64, the NHS recommends at least 2 hours and 30 minutes of moderate-intensity aerobic activity a week, plus muscle-strengthening activities on 2 or more days a week.
If you are older or have a health condition, your doctor can help you set a safe level.
Lifestyle habits that protect your bones
- Do not smoke. The NHS lists quitting smoking as one way to lower osteoporosis risk.
- Keep alcohol low. The NHS advises not drinking more than 14 units a week.
- Get regular sunlight. A little time outdoors on most days helps vitamin D production when the sun is strong enough where you live.
- Move most days. Even short walks add up.
- Prevent falls. Clear floors, good lighting and steady footwear all lower your risk. See our balance exercises at home.
None of these habits is dramatic. Together they make your day-to-day routine kinder to your bones.
Easy food ideas for stronger bones
You do not need a special diet. A few small swaps can raise your calcium and vitamin D intake through ordinary meals.
Breakfast
- Yogurt or milk with fruit and oats.
- Scrambled eggs, since the yolk contains vitamin D.
- A fortified cereal or plant drink, if the label lists added calcium and vitamin D.
Lunch and dinner
- A salad with leafy greens, such as kale or spinach, alongside your main dish.
- Tofu stir fried with vegetables.
- Oily fish, such as salmon or sardines, once or twice a week.
- Beans and lentils with a side of vegetables, plus dairy or a dairy alternative if you use them.
Snacks
- A small handful of dried fruit.
- A cheese slice with wholegrain crackers.
- Yogurt with a spoon of seeds.
Check labels on plant drinks and other fortified foods. Not all are fortified with calcium.
For a broader look at balanced eating, see our article on how to build a balanced plate.
A note on portions
You do not need to measure every gram. Aim to include a calcium-rich food at two or three meals, and see what the NHS figure of 700 mg feels like across a day.
If you avoid dairy, it is worth talking to your doctor or a dietitian about other sources or a supplement.
Common bone health myths
Myth 1: Bone problems only affect the very old
Bone health builds across your whole life. The habits you have in your 30s, 40s and 50s all count.
It is never too early to start looking after your bones, and it is rarely too late to improve your habits.
Myth 2: Calcium alone is enough
Calcium is important, but it works alongside vitamin D and regular exercise.
A calcium-rich diet with no movement will not do as much as calcium plus regular walking and strength work.
Myth 3: Resting protects fragile bones
Long periods of sitting and bed rest can weaken bones and muscles.
Gentle regular movement, done safely, is usually better for bone health than avoiding activity.
If you have a diagnosed bone condition, follow your doctor's advice about which activities are safe for you.
A realistic weekly routine
Here is a simple pattern that follows the NHS guidance without taking over your life.
- Most days: a 20 to 30 minute brisk walk, plus a calcium-rich food at one or two meals.
- Two days a week: 10 to 15 minutes of muscle-strengthening exercise, such as sit-to-stands and mini-squats.
- Weekly: an oily fish or vitamin D food a few times, and a check on your alcohol intake.
- Once in a while: a chat with your doctor about supplements, bone density and any fracture history.
You do not need to hit every target from day one. Start with the habit that feels easiest and add one more each week.
Explore more healthy aging habitsA simple bone health checklist
Use this checklist once a month. It takes about five minutes and turns advice into action.
- Did I eat something calcium-rich at most meals this week?
- Did I get some vitamin D from food, sunlight where suitable, or a supplement my doctor agreed with?
- Did I do weight-bearing movement, such as brisk walking, on most days?
- Did I do muscle-strengthening exercise on at least two days?
- Am I within the NHS limit for alcohol, and am I avoiding smoking?
- Have I made my home safer to lower the chance of falls?
What to do with your answers
If you answered yes to most, keep going. If a few are a no, choose only one to improve this month.
One change that sticks is worth more than five that fade.
Questions to bring to your doctor
- Should I have a bone density check, given my age and history?
- Do my medicines affect my bones?
- Is a calcium or vitamin D supplement right for me, and at what dose?
- Which types of exercise are safest for me?
Writing your questions down before an appointment makes the visit more useful. Take this article's checklist with you if it helps.
For a bigger picture of staying strong and independent, read our Healthy Aging Guide.
Getting vitamin D from sunlight, safely
Sunlight helps your skin make vitamin D. The amount you get depends on where you live, the season, your skin tone and how much skin is uncovered.
That is why general advice can only go so far, and why a local doctor can help you decide what suits you.
- Short, regular time outdoors is better than rare, long sessions.
- Never let your skin burn. Use shade, clothing and sunscreen when the sun is strong.
- In colder or darker months, food or a supplement may matter more.
- If you cover most of your skin, spend most of the day indoors or have a health condition, ask your doctor about vitamin D.
Turn outdoor time into a habit
Take your morning tea or coffee outside. Walk to a shop instead of driving when you can.
A daily outdoor walk supports your bones, your mood and your sleep at the same time.
Our guide on how to start walking for fitness gives an easy way to begin.
When to talk to a doctor
Bone health is personal. Talk to your doctor if you have had a broken bone from a small fall, if a relative has osteoporosis, if you have lost height, or if you take medicines that affect bones.
They may suggest a bone density scan, blood tests or a specific treatment plan.
Do not start high-dose supplements without medical advice.
This article is general education. Meena Narayanan reviewed it as a Certified Personal Trainer, which is not a medical credential. The NHS figures apply to adults in the UK. Check what applies where you live.
Recap: the main points
- Adults need about 700 mg of calcium and 10 micrograms of vitamin D a day, per the NHS.
- Dairy, leafy greens, tofu and dried fruit are good calcium sources.
- Weight-bearing and muscle-strengthening exercise both help bones.
- Avoid smoking and keep alcohol within the NHS limit of 14 units a week.
- Talk to your doctor about supplements, fractures or bone density.
Bone health: frequently asked questions
The NHS says adults need 700 mg of calcium a day. Dairy products, leafy green vegetables, dried fruit and tofu are good food sources.
The NHS says adults need 10 micrograms of vitamin D a day. Sunlight, oily fish, egg yolks and fortified foods contribute, and a supplement may help. Ask your doctor what suits you.
Weight-bearing exercise such as brisk walking, and muscle-strengthening exercise such as lifting or press-ups, are both helpful. Doing both is best.
Bone changes more slowly later in life, but regular exercise, good nutrition and healthy habits still help protect the bone you have. Ask your doctor about your own situation.
Heavy drinking can raise the risk of osteoporosis. The NHS advises not drinking more than 14 units of alcohol a week.
Many people can get enough calcium from food. Ask your doctor or pharmacist before taking supplements, especially at high doses.
Want the full picture? Read our Healthy Aging Guide.
Sources and further reading
We checked the figures and guidance in this article against these sources. This article does not give personal medical advice.
Want more? Head back to the Healthy Aging hub or read the Start Here guides.
