--- title: 'How Nutrition Supports Bone Health With Osteoporosis' slug: nutrition-bone-health-osteoporosis lifeStage: menopause category: Nutrition medicalReviewer: "Dr Rebeccah Tomlinson, Private GP Women's Health: Menopause Speciality" reviewerId: 'https://blog.bloume.com/menopause/medical-board.md#dr-rebeccah-tomlinson' lastUpdated: '2026-06-18' primarySource: 'Menopause and Bone Loss – Endocrine Society' --- # How Nutrition Supports Bone Health With Osteoporosis An osteoporosis diagnosis often raises an immediate, practical question: what can you eat to support your bones? This article walks through the key nutrients involved, including calcium, vitamin D, and vitamin K2, what the evidence shows, and where it gets more nuanced. It also explains why UK and US reference values look so different, and what is worth raising with your GP. **Q: How much calcium do I need if I have osteoporosis?** A: The UK reference value for adults is 700mg of calcium a day. If you are being treated for osteoporosis, your doctor may advise a higher intake of around 1,000mg daily. That higher figure is an individual clinical recommendation rather than a general target, so it is worth raising at your next appointment. An osteoporosis diagnosis can bring a particular kind of urgency. You know your bones are more fragile than before, and the practical question of what you can do about it, day to day, tends to follow quickly. Nutrition for your bone health sits right at the centre of that question. Food will not reverse osteoporosis, though the right nutrients play a clear part in supporting bone strength and slowing further loss. Knowing what to prioritise, and what the evidence actually backs up, is a practical place to start. ## Why menopause affects bone density The bone loss that comes with menopause largely traces back to oestrogen. As your levels fall, the steady cycle of bone renewal tips out of balance, and bone starts breaking down faster than your body rebuilds it. Over time, that leads to lower bone density and a higher risk of osteoporosis. What you eat will not restore bone density to where it was before menopause, though it forms an important part of managing the condition day to day. ## Calcium and bone health with osteoporosis Calcium is the mineral your bones rely on most. Most people in the UK get enough through a balanced diet, but if you have been diagnosed with osteoporosis your doctor may suggest increasing your intake, often through a supplement alongside food sources. It is worth asking at your next appointment what they recommend for you specifically. You can get calcium from a wide range of foods. Dairy like milk and cheese is an obvious source, and plenty of plant foods carry it too. Green leafy vegetables such as broccoli and cabbage count, though spinach is the exception, as it contains compounds that limit how much calcium your body can absorb. Soya beans, tofu, nuts, and fish with edible bones like tinned sardines all add to your intake as well. ## Vitamin D and calcium absorption Calcium can only do its job if you have enough vitamin D. It is the nutrient that lets your body absorb and use calcium, so without it, even a calcium-rich diet does little for your bones. You will find some vitamin D in oily fish, red meat, and egg yolks, though getting enough from food alone is genuinely hard. From October to early March, sunlight in the UK is not strong enough for your body to make the vitamin D it needs. Through those months, the general advice is to consider a daily 10 microgram (400 IU) supplement. If you have been diagnosed with osteoporosis, your doctor may suggest a higher daily amount of 20 micrograms. It is worth raising at your next appointment rather than changing your intake on your own. ## Vitamin K and bone formation Vitamin K plays a part in bone formation and repair by switching on certain proteins, including one called osteocalcin. You get vitamin K1 from leafy green vegetables. Vitamin K2 comes from fermented foods, meat, and dairy, and your gut bacteria make some of it too. Vitamin K gets a lot of attention for bone health, though the evidence behind K supplements does not hold up strongly enough for them to be recommended. Study results have been mixed, and current UK guidance does not back vitamin K supplements as part of managing osteoporosis. Getting your vitamin K from a varied diet is the sensible approach. > **WARNING**: Before you start any supplement, have a word with your GP or pharmacist, as supplements can interact with medication. Vitamin K can interfere with blood-thinning medication such as warfarin. Taking more than 100 micrograms of vitamin D a day over time can also do harm. This holds whether your supplements are prescribed or bought over the counter. ## A balanced diet as the foundation A healthy, varied diet sits at the foundation of bone health. After an osteoporosis diagnosis, your GP is a good first point of contact for any questions about nutrition. Depending on what your diet already provides, they may prescribe calcium and vitamin D supplements alongside any other medication. Some needs are simply hard to meet through food alone, particularly vitamin D in the UK, which is why supplements are often part of the picture. If you have questions about your calcium or vitamin D intake after an osteoporosis diagnosis, bring them to your next GP appointment. Your doctor can look over your diet, work out whether supplements would help, and make sure anything you take fits with your other medication. --- **Q: How much calcium do I need if I have osteoporosis?** The UK reference value for adults is 700mg of calcium a day. If you are being treated for osteoporosis, your doctor may advise a higher intake of around 1,000mg daily. That higher figure is an individual clinical recommendation rather than a general target, so it is worth raising at your next appointment. **Q: Should I take a vitamin D supplement for bone health?** From October to early March, the general advice is to consider a 10 microgram (400 IU) vitamin D supplement each day, because sunlight in the UK is not strong enough for your body to make its own. If you have been diagnosed with osteoporosis, your doctor may recommend a higher daily amount of 20 micrograms. It is best to talk this through with your GP rather than adjusting on your own. **Q: Do vitamin K2 supplements help with osteoporosis?** Vitamin K has a role in bone formation, though the evidence that K2 supplements improve bone health in osteoporosis is not considered strong enough to recommend them. Current UK guidance does not support taking vitamin K supplements for this purpose, and study results have been mixed. If you take warfarin or another blood thinner, vitamin K supplements can interfere with your medication, so check with your GP or pharmacist before starting anything. **Q: Why do UK and US calcium and vitamin D recommendations look so different?** Different national health bodies set their own reference values based on their own review processes. US guidance for over-50s recommends 1,200mg of calcium and 800 to 1,000 IU of vitamin D daily, which is higher than the UK figures. If you are in the UK, the UK guidance is the reference that applies to you. For vitamin D units, the conversion is simple: 10 micrograms (mcg) equals 400 IU. ### Clinical Sources - [Menopause and Bone Loss – Endocrine Society](https://www.endocrine.org/patient-engagement/endocrine-library/menopause-and-bone-loss) - [NHS: Osteoporosis – Prevention](https://www.nhs.uk/conditions/osteoporosis/prevention/) - [NHS — Food for strong bones](https://www.nhs.uk/live-well/bone-health/food-for-strong-bones/) - [NHS: Osteoporosis – Prevention](https://www.nhs.uk/conditions/osteoporosis/prevention/) - [NHS: Osteoporosis – Prevention](https://www.nhs.uk/conditions/osteoporosis/prevention/) - [NHS: Osteoporosis – Prevention](https://www.nhs.uk/conditions/osteoporosis/prevention/) - [Royal Osteoporosis Society — Vitamins, minerals and nutrients](https://theros.org.uk/information-and-support/bone-health/nutrition-for-bones/vitamins-minerals-and-nutrients/vitamins/) - [Further Food Facts and Bones](https://strwebprdmedia.blob.core.windows.net/media/v2pdyew4/ros-further-food-facts-and-bones.pdf) - [Vitamin D – NHS](https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-d/) - [Royal Osteoporosis Society — Nutrition for bones](https://theros.org.uk/information-and-support/bone-health/nutrition-for-bones/) --- Reviewed by Dr Rebeccah Tomlinson, Private GP Women's Health: Menopause Speciality | [Medical Board](https://blog.bloume.com/menopause/medical-board.md) | June 2026