How common is osteoporosis really in Germany?

According to the Health Atlas Germany (Gesundheitsatlas Deutschland) by the Scientific Institute of the AOK (WIdO, as of October 2025), approximately 2.15 million people in Germany were affected by osteoporosis in 2023. While the prevalence among people aged 35 and older decreased slightly from 4.6 to 4.0 percent between 2017 and 2023, the absolute number remains high—and regional differences are significant: Saxony-Anhalt records the highest rate at 5.8 percent, while Hamburg has the lowest at 2.9 percent.

Particularly relevant for prevention: According to the same report, more than 70 percent of osteoporosis cases in Germany go undiagnosed and untreated—even when a fracture has already occurred.

→ Source: Health Atlas Germany: Osteoporosis, Scientific Institute of the AOK (WIdO), as of October 2025

This underscores why proactive prevention starting at 50 is not an option, but a necessary supplement to medical care according to the Dachverband Osteologie (DVO).

What is osteoporosis—and why does prevention begin at 50?

Osteoporosis is the gradual loss of bone mass and structure, which significantly increases the risk of fractures during everyday activities. The disease progresses for years without noticeable symptoms until a bone fracture—often in the wrist, hip, or spine—makes it visible for the first time. This is precisely why the current DVO guidelines for the prevention, diagnosis, and treatment of osteoporosis explicitly start with postmenopausal women and men aged 50 and older, rather than waiting for patients who have already been diagnosed.

→ Source: Update on the DVO Guideline 2023 for Prevention, Diagnosis and Therapy of Osteoporosis, PMC

The reason lies in hormone physiology: with the drop in estrogen levels during menopause, bone resorption accelerates noticeably, while bone formation remains constant. Women lose bone density particularly quickly in the first few years after menopause. Men are affected by this change later and usually more slowly, but the risk for them also increases measurably from age 50.

How much calcium and vitamin D does the body really need?

The German Nutrition Society (DGE) recommends a calcium intake of about 1,000 mg per day for adults, achievable through calcium-rich foods such as dairy products, green leafy vegetables, and mineral water high in calcium. Additionally, the DGE suggests a vitamin D intake of 800 to 2,000 IU per day as a guideline, especially when the body's own production via sunlight—for example, in the winter months—is insufficient.

In practice, according to the DGE and the Dachverband Osteologie (DVO), about half of adults in Germany do not reach the recommended calcium intake, and a sufficient vitamin D level of at least 50 nmol/l is also frequently not met. According to the guidelines, both nutrients form the basic therapy and the foundation for any further osteoporosis prevention—without them, any additional measures remain incomplete.

Magnesium: the underestimated partner to calcium and vitamin D

While calcium and vitamin D are usually the focus of osteoporosis prevention, magnesium plays an equally necessary, but less frequently discussed role. Magnesium is involved in the conversion of vitamin D into its active hormonal form, calcitriol—without sufficient magnesium, calcium and vitamin D cannot fully unfold their effect in bone metabolism. If a magnesium deficiency is present, the activity of bone-resorbing cells (osteoclasts) also increases.

A large prospective cohort study, published in the British Journal of Nutrition, investigated the link between dietary magnesium intake and fracture risk over an eight-year follow-up period. Participants with the highest magnesium intake, after adjusting for fourteen potential confounding factors, showed a significantly lower fracture risk—53 percent lower for men and 62 percent lower for women compared to those with low intake. The study authors describe this as one of the first clear pieces of evidence for a link between magnesium intake and fracture risk in both genders.

→ Source: Dietary Magnesium Intake and Fracture Risk: Data from a Large Prospective Study, British Journal of Nutrition

Important context: This is an observational study that demonstrates a correlation but is not a controlled intervention study that provides direct cause-and-effect proof. Good sources of magnesium include whole-grain products, legumes, nuts, and green leafy vegetables—for those with an unbalanced diet or increased needs due to age, targeted supplementation can be beneficial.

Protein and muscle mass: the underestimated connection to bone stability

Osteoporosis prevention is often viewed in isolation from muscle health, although both are closely linked. Sufficient muscle mass not only protects directly against falls, but the musculature also exerts mechanical tensile forces on the bones, which helps maintain their density. The loss of muscle mass and strength in old age, known as sarcopenia, is therefore considered a closely related risk issue.

The German Nutrition Society (DGE) recommends a reference value of 1.0 g of protein per kilogram of body weight per day for people over 65—for those already suffering from sarcopenia, an adjustment to 1.2 to 1.5 g of high-quality protein per kilogram is recommended, for example from meat, fish, dairy products, or legumes. There is evidence that a sufficiently high protein intake in people over 65 is associated with a potentially reduced risk of hip fractures.

→ Source: What impact do protein amount and type have on bone health?, German Nutrition Society (DGE)

According to the current DGE assessment, there is so far no definitive evidence that a protein intake exceeding these recommendations provides additional benefits for bone density or fracture risk.

Strength training: the most effective non-pharmacological measure

According to the current S3 guidelines for fracture prevention, regular strength training is the best-documented single non-pharmacological measure against osteoporosis. Mechanical stress specifically stimulates bone metabolism and promotes the building of bone mass—an effect that no nutritional supplement can achieve on its own. The guidelines recommend dynamic, weight-bearing strength training for all major muscle groups at least twice a week, supplemented by about 20 minutes of balance training while standing and walking.

→ Source: S3 Guideline: Training for Fracture Prevention, AWMF Register No. 183-002

A practical training stimulus is oriented toward about 75 percent of the individual's maximum strength (1RM) in two sets per exercise. The goal is not peak athletic performance, but a repeated, sufficiently strong stimulus for bones and muscles. Those who have never done strength training should plan their start with a physical therapist or personal trainer to safely increase technique and load.

Vitamin K2: What the study evidence really shows

Vitamin K2, especially in the MK-7 form, is a necessary cofactor for the carboxylation of osteocalcin—only in carboxylated form can this bone-forming protein bind calcium. Observational studies show an inverse correlation between vitamin K2 status and osteoporosis risk: people with higher K2 intake generally have fewer fractures.

In controlled intervention studies, however, the picture is less clear. The professional literature itself describes the question of whether targeted vitamin K2 supplementation actually improves bone density and fracture rates as controversial and not conclusively settled. According to the study evidence, those who already supplement with vitamin D can justifiably opt for a combined D3/K2 intake, such as in Veyt™ Lumina D3 K2 Drops—but should view this as a plausible supplement and not as a proven stand-alone solution against osteoporosis.

Collagen peptides: What the 2018 König study really shows

An often-cited randomized, placebo-controlled double-blind study by König and colleagues examined 131 postmenopausal women with age-related reduced bone density over 12 months. The group that took 5 grams of specific collagen peptides daily showed a significant increase in bone density in the spine and femoral neck compared to the placebo group.

→ Source: König et al., Specific Collagen Peptides Improve Bone Mineral Density and Bone Markers in Postmenopausal Women – A Randomized Controlled Study, Nutrients (2018), PMC

A more recent meta-analysis of several randomized studies confirms a consistent trend: collagen peptides—especially in combination with calcium and vitamin D—seem to have a positive effect on bone density at clinically relevant sites such as the spine and femoral neck. As a mechanism of action, it is discussed that collagen peptides promote the differentiation of bone-forming osteoblasts while simultaneously inhibiting bone-resorbing osteoclasts. Important context: The positive study evidence primarily refers to specific collagen peptide preparations used in studies—not every collagen product on the market has been investigated in this form.

According to product information, the Veyt™ Collagen Peptide Complex Capsules provide 1,560 mg of pure collagen per serving and are positioned for support of skin, joints, and connective tissue. A direct application of the 5-gram study results to this specific product is not proven, as different collagen preparations can vary in origin, molecular size, and processing.

Sunlight and vitamin D production: Why the German winter becomes a problem

The body produces most of its own vitamin D when UVB radiation hits the skin – a process that fluctuates significantly by season in Germany. Between October and March, the sun's angle in this country is too low for the skin to produce sufficient vitamin D, even on clear days. During this time, the body relies primarily on stored vitamin D from the summer months as well as intake through diet or targeted supplementation. Those who spend a lot of time indoors, have older skin, or consistently use sun protection produce less vitamin D through their skin anyway – factors that often coincide in older age.

Other risk factors that are often underestimated

In addition to diet and training, several lifestyle factors measurably influence fracture risk. Smoking and high alcohol consumption are proven to weaken bone stability. Consistently low body weight (low BMI) is a recognized risk factor, as is a family history of hip fractures in parents or siblings. Certain medications – such as long-term cortisone therapy – also increase the risk of osteoporosis and should be discussed with the treating practice rather than compensated for independently with dietary supplements.

Fall prevention in everyday life: often more important than thought

A significant portion of osteoporotic fractures occurs not due to bone weakness alone, but because of a preceding fall. The S3 guideline therefore explicitly recommends balance training as an integral part of prevention, not just strength training. Concrete everyday measures include removing tripping hazards like loose carpet edges, ensuring adequate lighting in stairs and hallways, wearing sturdy footwear even at home, and regularly checking vision, as poor eyesight significantly increases the risk of falling.

When to get a bone density measurement?

A bone density measurement (DXA) is recommended especially for postmenopausal women and men over 50 with additional risk factors – such as family history, low body weight, smoking, or having already suffered fractures without adequate trauma. The decision regarding the timing and frequency of the measurement should be made jointly with a general practitioner or an osteology specialist, as the DVO guideline provides for an individual risk assessment rather than a blanket age limit for everyone.

If the measurement shows reduced bone density but not yet osteoporosis, our article Osteopenia: What to do? helps in understanding T-scores, 3-year fracture risk, and possible next steps.

Expert Perspectives & Protocol Breakdown

The study landscape on osteoporosis prevention shows different areas of focus depending on the specialty. The authors of the 2023 DVO Guideline (Dachverband Osteologie) position calcium and vitamin D as the non-negotiable basic therapy upon which every other measure is built – according to the guideline, drug therapy also remains limited in its effectiveness without sufficient basic supply.

→ Source: Update on the DVO Guideline 2023 for Prevention, Diagnosis and Therapy of Osteoporosis, PMC

In contrast, the authors of the S3 guideline on training for fracture prophylaxis (AWMF Register No. 183-002) focus on the mechanical side: they classify dynamic, weight-bearing strength training as the best-evidenced non-pharmacological single measure – an approach based on the direct mechanical stimulation of bone metabolism rather than on nutrient intake alone. Both perspectives are not mutually exclusive but complement each other: nutrients provide the building blocks, while loading stimuli ensure that the body actually converts them into bone mass.

→ Source: S3 Guideline Training for Fracture Prophylaxis, AWMF Register No. 183-002

Three common misconceptions about osteoporosis prevention

Misconception 1: "Osteoporosis only affects women." Men also develop osteoporosis – the DVO guideline is explicitly aimed at men over 50 as well. Bone loss typically starts later and progresses more slowly in them, but the risk is not negligible, especially in the presence of additional risk factors like smoking or long-term cortisone therapy.

Misconception 2: "There is no need for action without symptoms." By definition, osteoporosis remains symptomless for years until a fracture makes it visible. This is exactly what makes prevention starting at age 50 sensible – not waiting for visible complaints.

Misconception 3: "More calcium is always better." The DGE recommendation of around 1,000 mg per day is a reference value, not a minimum amount that should be exceeded arbitrarily. Uncontrolled high calcium intake via dietary supplements without medical consultation is not automatically associated with additional benefits.

Veyt™ product overview for bone health in comparison

Prices and availability are subject to change; current information can be found on the respective linked product page.

Checklist: Implementing osteoporosis prevention in everyday life

For a structured start, prevention can be broken down into manageable, everyday steps based on the recommendations of the DGE and DVO:

1. Ensure a calcium-rich diet (dairy products, green leafy vegetables, calcium-rich mineral water) aiming for around 1,000 mg per day.
2. Check vitamin D levels, especially in the low-light months of October to March.
3. Schedule weight-bearing strength training for major muscle groups twice a week.
4. Supplement with balance training to further reduce the risk of falling.
5. Reduce tripping hazards in the home and ensure adequate lighting.
6. Avoid smoking and high alcohol consumption.
7. If you have a family history or other risk factors, actively discuss bone density measurement with your general practitioner.

Frequently asked questions about osteoporosis prevention

At what age should one start osteoporosis prevention?

The DVO guideline targets postmenopausal women and men starting at age 50, as bone loss accelerates from this point on and early prevention can lower the risk of later fractures.

How much calcium is needed daily for strong bones?

The DGE recommends around 1,000 mg of calcium per day for adults, achievable through dairy products, green leafy vegetables, and calcium-rich mineral water.

Does vitamin K2 demonstrably help against osteoporosis?

Observational studies show a positive correlation, but controlled intervention studies on bone density provide inconsistent results. Professional literature describes this question itself as controversial.

What does the study landscape show regarding collagen and bone density?

A randomized study by König et al. with 131 postmenopausal women showed a significant increase in bone density in the spine and femoral neck compared to placebo after 12 months of taking 5 g of specific collagen peptides daily.

How often should one do strength training for bone health?

The S3 guideline recommends dynamic, weight-bearing strength training for all major muscle groups at least twice a week, supplemented by balance training.

Is endurance training like swimming sufficient for bone health?

No, swimming and cycling provide little load on the bones since body weight is supported by the water or the saddle. Weight-bearing exercises are more effective for bone metabolism.

What role does menopause play in osteoporosis risk?

Declining estrogen levels during menopause significantly accelerate bone loss, while bone formation remains the same – which is why menopause is a key starting point for guideline-based prevention.

When is a bone density measurement recommended?

Especially with additional risk factors such as family history, low body weight, smoking, or prior fractures without adequate trauma – the specific decision is made by the treating practice on an individual basis.

Can osteoporosis be prevented solely through dietary supplements?

No. According to the guideline, nutrients such as calcium, vitamin D, K2, and collagen form the basis, but do not replace strength training or medical diagnosis and therapy.

What role does magnesium play in bone health?

Magnesium is involved in the conversion of vitamin D into its active form. A large observational study in the British Journal of Nutrition showed a significantly lower fracture risk with high magnesium intake, although this represents a correlation and not direct proof of causality.

How much protein should people over 50 consume daily?

The DGE recommends around 1.0 g of protein per kilogram of body weight for people over 65; in cases of sarcopenia, 1.2 to 1.5 g per kilogram from high-quality sources such as fish, dairy products, or legumes.

How many people in Germany are affected by osteoporosis?

According to the Gesundheitsatlas Deutschland (WIdO, as of October 2025), approximately 2.15 million people were affected in 2023, with the disease remaining unrecognized and untreated in more than 70 percent of cases.

Read more: Vitamin K2 dosage: How many µg of MK-7 per day are actually sensible · Collagen dosage: How many grams per day actually work · Dietary supplements during menopause: What studies really show · Joint pain during menopause: What guidelines and studies show

References & Scientific Citations

• König et al. (2018). Specific Collagen Peptides Improve Bone Mineral Density and Bone Markers in Postmenopausal Women – A Randomized Controlled Study, Nutrients, PMC
• Dachverband Osteologie (2023). Update on the DVO Guideline 2023 for Prevention, Diagnosis and Therapy of Osteoporosis, PMC
• S3 Guideline Training for Fracture Prophylaxis, AWMF Register No. 183-002
• Strength training for osteoporosis prevention, Orthinform
• Wissenschaftliches Institut der AOK (WIdO), as of October 2025. Gesundheitsatlas Deutschland: Osteoporosis
• German Nutrition Society (DGE) (2023). What influence do the amount and type of protein have on bone health?
• Veronese et al./cohort authors. Dietary Magnesium Intake and Fracture Risk: Data from a Large Prospective Study, British Journal of Nutrition