One in two women and one in five men over 50 in the UK will suffer a fracture due to osteoporosis. Yet bone disease is largely preventable — if you start protecting your bones before they start to deteriorate. Nutrition is one of the most powerful tools available.

Understanding Bone Health

Bone is living tissue, constantly being broken down and rebuilt. Peak bone density is achieved in your late 20s to early 30s — after that, the balance gradually shifts towards more breakdown than building. The goal of bone health supplementation is to slow this process and maintain density for as long as possible.

Risk factors for osteoporosis include: being female, being post-menopausal, low body weight, smoking, excessive alcohol, low physical activity, vitamin D deficiency, long-term steroid use, family history, and — crucially — low calcium and Vitamin D intake throughout life.

Calcium — The Foundation

About 99% of the body’s calcium is stored in bones and teeth. The UK Reference Nutrient Intake is 700mg/day for adults (800–1000mg for older adults). Dietary sources: dairy products, fortified plant milks, tinned sardines with bones, leafy greens (especially kale and bok choy). Many people don’t achieve this from diet alone, making supplements necessary. Split doses of no more than 500mg calcium at a time to optimise absorption.

Vitamin D — Calcium’s Essential Partner

Without sufficient Vitamin D, only 10–15% of dietary calcium is absorbed. With adequate Vitamin D, absorption rises to 30–40%. Yet the UK’s climate means most people are Vitamin D deficient for at least half the year. The NHS recommends 10mcg (400IU) daily; many bone health experts recommend 20–25mcg for those at risk of osteoporosis.

Vitamin K2 — The Missing Link

Vitamin K2 (as MK-7) activates osteocalcin, a protein that binds calcium into bone matrix. Without K2, supplemental calcium may deposit in arteries rather than bones — sometimes called the “calcium paradox.” K2 is found naturally in natto (fermented soya), some cheeses and egg yolks. Many people take a combined D3+K2 supplement for this reason.

Magnesium and Bone Density

Approximately 50–60% of body magnesium is stored in bone. Magnesium is also required to convert Vitamin D to its active form. Studies show that higher magnesium intake is associated with greater bone density in both men and women.

Lifestyle Factors That Harm Bone Health

Smoking reduces bone density by impairing blood supply to bone. Excessive alcohol interferes with calcium absorption and vitamin D metabolism. Sedentary lifestyle — weight-bearing exercise (walking, jogging, resistance training) stimulates bone formation. High salt intake increases calcium excretion in urine. Excessive caffeine modestly increases calcium excretion.

Bone Health Supplements at Chemist 2 Customer

Browse our Vitamins for Bones range. Related reading: Complete Vitamins Guide, Best Vitamins for Women.