Bone building is a complex process that
involves minerals and hormones that can be greatly influenced by dietary
factors.
The bone thinning condition called osteoporosis can
lead to small and not-so-small fractures. Although many people think of calcium
in the diet as good protection for their bones, this is not at all the whole
story. To protect your bones you do need calcium in your diet, but you also need
to keep calcium in your bones.
How to get Calcium into your
bones? Get calcium from greens, beans, or fortified
foods. The most healthful calcium sources are green leafy vegetables and
lefumes. Broccoli, Brussels, sproouts, collards, kale, mustard greens and other
greens are loaded with highly absorbable calcium and a host of other healthfull
nutrients. The exception is spinach, which contains a large amount of calcium
but tends to hold into it very tecaciously, so that you will absorb less of it.
Dairy products do contain calcium, but it is
accompanied by animal proteins, lactose sugar, animal growth factors, occasional
drugs and contaminants, and a substantial amount of fat and cholesterol in all
but the defatted versions.
Exercise: Exercise is important for many reasons, including keeping bones
strong. Active people tend to keep calcium in their bones, while sedentary
people lose calcium.
Vitamin D: Vitamin D controls your body's use of calcium. About 15 minutes of
sunlight on your skin each day normally produces all the vitamin D you need. If
you get lettle or no sun exposure, you can get vitamin D from any multiple
vitamin. Vitamin D is often added to milk, but the amount added is not always
well controlled.
Reduce Calcium losses by avoiding
excess Salt: Calcium in bones tends to dissove
into the blood-stream, then pass through the kidneys into the urine. Sodium
(salt) in the foods you eat can greatly increase calcium loss through the
kidneys. If you reduce your sodium intake to one to two grams per day, you will
hold onto calcium better. To do that, avoid salty snack foods and canned goods
with added sodium, and keep salt use low on the stove and at the table.
Get protein from plants: Animal protein---in fish, poultry, red meat, eggs, and dairy
products--tends to leach calcium from the bones and encourages its passage into
the urine. Plant protein--in beans, grains, and vegetables--does not appear to
have this effect.Don't Smoke: Smokers lose calcium, too. A study of identical twins showed that, if one twin had been a long-term smoker and the other had not, the smoker had more than a 40 percent higher risk of fracture.
Hormone supplements have serious
risks: Some doctors recommend estrogen supplements for
women after menopause as a way to slow osteoporosis, although the effect is not
very great over the long run, and they are rarely able to stop or reverse bone
loss.
Reversing Osteoporosis: If you already have osteoporosis, you will want to speak with your
doctor about excercises and perhaps even medications that can reverse it.
Osteoporosis in men: Osteoporosis is less common in men than in women, and its causes are
somewhat different. In about half the cases, a specific cause can be identified
and addressed: Steroid medications, such as prednisone, are a common cause of
bone loss and fractures. If you are receiving steroids, you will want to work
with your doctor to minimise the dose and to explore other treatments.
Alcohol can weaken your bones, apparently by
reducing the body's ability to make new bone to replace normal losses. The
effect is probably only significant if you have more than two drinks per day of
spirits, beer, or wine.
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Calcium Builds Strong Bones
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