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Bone Health: Consequences of Calcium Deficiency, How To Keep Your Bone Healthy?

Updated on April 15, 2017

Human skeleton consists of 300 bones at the time of birth, which reduces to 206 by adulthood. This is due to the fusion of some bones. The bone mass reaches maximum around the age 30.

Human skeleton
Human skeleton

Bone plays an important role in the body. It provides structure, shape, stability to the body. It supports muscles, helps storing calcium. It is essential to build healthy bones during childhood and adolescence. It is equally important to maintain bone health during adulthood.

There is continuous change in the bone structure; old bones are replaced by new ones. During this change process, new bones become stronger and bone mass increases. During childhood, the new bone is formed faster than the breaking of the old bones. In most cases, people reach the peak bone mass at the age of 20-30 years. Even after that, remodeling of the bone continues, however, the gaining of the bone mass is slightly lesser than the loosing.

Healthy and unhealthy bones
Healthy and unhealthy bones

What is Osteoporosis?

Osteoporosis is a condition in which bone becomes weak and brittle. The developing of this condition during later stage of life depends on how much peak bone mass you have attained within the age of 30. If you have more bone mass stored in you, you are less likely to develop osteoporosis as you age. Hence, it is crucial to have calcium rich diet during childhood, adolescence and early adulthood.

Factors Affecting Bone Health

  • Calcium plays a major role in the development of strong bones and healthy teeth. A diet in low calcium contributes for the low bone density. When you lack sufficient level of calcium in your diet, the body starts extracting calcium from the bone. Shortage of calcium results in early bone loss that increases the risk of bone fractures.
  • Gender: Females are more likely to develop osteoporosis than males. The reason is, females have less bone tissue than males.
  • Age: Bone becomes weaker and thinner with the age.
  • Physically inactive people have higher risk of osteoporosis than the active people.
  • Tobacco and alcohol: Study on bone suggests that increased use of tobacco and alcohol leads to weak bones. Alcohol interferes with the absorption of calcium.
  • Size: Extremely thin people whose BMI is 19 or less have more risk of developing osteoporosis because of low bone mass attained during childhood.
  • Family history and race matters in deciding the level of bone health. Asian descent and white people have greater risk of osteoporosis. Also, if your parent or sibling has osteoporosis, the risk of developing it is high.
  • If you have high level hormone like thyroid hormone, it may lead to bone loss. Due to dropping levels of estrogen, women are likely to get osteoporosis during menopause. Long absence of menstruation before menopause increases the risk of bone loss. In males, decrease of testosterone level causes loss of bone mass.
  • People who have anorexia or bulimia are more likely to develop bone loss. Also weight-loss surgery, stomach surgery, crohn's disease, celiac disease may affect body's capacity to absorb calcium.
  • Prolonged use of medications like corticosteroids such as Prednisone, Cortisone, Prednisolone and Dexamethasone are damaging to bone. It is observed that breast cancer treatment medicines also effect bone loss.

Source: Reader's Digest, www.mayoclinic.org

Foods that contain calcium
Foods that contain calcium

Protecting our Bones:

1. Include plenty of calcium in the diet: For adults 19-50 years age and men 51-70 years age, recommended dietary allowance(RDA) is 1000 mg. calcium a day. It increases to 1200 mg a day for woman after the age 50 and men above the age 70.

The best sources of calcium are dairy products like milk, cheese, yoghurt, leafy vegetables, broccoli, kale, canned salmon with bones, sardines, soy products like Tofu, beans, lentils, enriched white bread, flour, dried figs, many types of nuts & seeds, especially almonds.

2. Importance of vitamin D: Body needs vitamin D to absorb calcium. Make sure that you are getting enough vitamin D. The best source of vitamin D is, fortified margarines,cereals, oily fish(Tuna & Sardine), egg yolks, and milk.

Sunlight is the natural source that helps in the production of vitamin D. If you don't get enough sunlight, you may take vitamin D supplement as per doctor's advice.

3. Exercise and Physical activity: If you are physically active, it has greater effect on bone strength than changing the diet is likely to have. Regular exercise during adolescence and early adulthood helps to increase peak bone mass. Weight bearing exercises such as brisk walking, jogging, running, aerobic exercises, dancing, weight training, racquet sports, climbing stairs help in building strong bones, slowing down the bone loss.

Studies have shown that daily half an hour walk will have reasonable effect in improving the bone health.

4.Smoking and Alcohol: Avoid both these, if you want to maintain strong bones. More than two drinks of alcohol a day contributes for the decrease of bone health.

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