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Bone Health
The Bare-Bones
Facts
We all know the importance of maintaining healthy
bones throughout life. Fortunately, there are safe, effective, ways
to support strong, dense bones, regardless of your age.
Bones aren’t static. They’re living, changing tissues
that are constantly breaking down and rebuilding themselves. When
you were younger, your body did this very efficiently. In fact,
most women achieve peak bone density in their early 30s. But as
you get older, especially after menopause, your body breaks down
more bone than it rebuilds. That’s why it’s so important to take
steps now to maintain strong, resilient bones throughout your life.
It’s never too late to start thinking about bone
health. I have seen patients in their 70s and 80s strengthen their
bones and build new bone with a good bone maintenance program.
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Building Bones through
Exercise
Bones change constantly in response to different
forces. Stress or strain on bones stimulates osteoblasts (cells
that build bone). The more your bones resist gravity, the stronger
they become. Conversely, inactivity takes its toll.
Exercise can increase bone mass, regardless of
age. Researcher Miriam Nelson, Ph.D., author of the book Strong
Women Stay Young, found that women who lifted weights 40 minutes
twice a week for one year felt 15 to 20 years younger. Instead of
losing bone, they showed small but significant gains, and felt happier,
more energetic, and more self-confident—and the weight training
led to significant weight loss.
Put stress on your bones regularly. If you’ve been
sedentary, start with ten minutes a day and work up to 30–45 minutes
three to five times a week. Do weight-bearing aerobic exercise such
as walking, cycling, tennis, skiing—anything that gets you moving.
Making room in your life for exercise will benefit not just your
bones, but also your body and outlook.
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Key Nutrients for Bone
Health
Critical Minerals
Exercise alone cannot maintain bone health. Nor
will calcium alone. We all know calcium is extremely important for
healthy bones—but it can be hard for your body to absorb. It needs
to be combined with certain other nutrients to be effective.
Plus, calcium is just one of more than a dozen
nutrients your bones need to stay flexible and strong. And it doesn’t
address other key bone health factors—building collagen and the
need to reduce bone breakdown.
Scientists have identified vitamins D and K and
many essential minerals besides calcium that synergistically help
maintain strong bones. Minerals support processes involved in building
strong bone, including collagen synthesis, mineralization, and proper
absorption of calcium and other minerals.
Calcium. Your bones and
teeth contain about 99 percent of your body’s calcium. Many studies
have supported the effectiveness of calcium in maintaining bone
health. The typical postmenopausal woman consumes about 500 mg of
calcium each day.
Daily Calcium Requirements
Teenagers: 1,300 mg per day
Women over 18 with healthy bones: 1,000 mg per day if still menstruating
Women taking estrogen: 1,200–1,500 mg per day
Postmenopausal women: 1,200-1,500 mg per day Women with bone loss:
1,500-2,000 mg per day
Note: Your body can
absorb only about 500 mg of calcium at a time, so spread your daily
supplement intake throughout the day. I recommend calcium supplements
in the form of calcium carbonate or ascorbate. Calcium carbonate,
unlike calcium citrate, also provides a good buffer for reducing
over-acidity. Be sure to take calcium in a 2:1 ratio with magnesium.
Magnesium. Approximately
60 percent of your body’s magnesium is stored in your bones. Magnesium
aids calcium absorption and supports bone density. I advise supplementing
magnesium in a 1:2 ratio with calcium. I recommend 500–750 mg of
magnesium daily.
Zinc promotes healthy
bones and new bone growth. Sub-optimal zinc intake is so common
that I advise 15–25 mg daily.
Folic acid helps properly
process the amino acid metabolite homocysteine which is important
for overall bone health and strength. I recommend 800 mcg daily.
Silica (silicon). The
herb horsetail (Equisetum arvense) is rich in silica, a mineral
that is necessary for forming collagen and connective tissue. Silicon
can help support bone mass density and also help calcium absorption.
Boron, calcium, magnesium, and other minerals facilitate silicon
absorption. For optimal bone health, take 20–50 mg daily.
Boron is highly concentrated
in bones and is necessary for calcium and magnesium metabolism and
for utilization of other bone-building nutrients and hormones. I
recommend 3–6 mg daily for optimal bone health.
Critical Vitamins
These vitamins are critical for at least one aspect
of bone building or maintenance; most are involved in several processes.
Vitamin B6 supports calcium
absorption and helps maintain normal homocysteine levels. I recommend
50 – 100 mg daily.
Vitamin B12 helps maintain
normal homocysteine levels and ultimately healthy bones. I recommend
100 – 500 mcg daily.
Vitamin K. High dietary
intake of vitamin K has been shown to significantly reduce the risk
of hip fracture. I recommend 40 mcg of vitamin K daily. Note: Do
not take more than 150 mcg of vitamin K a day with meals; excess
is not easily excreted. If you take Coumadin, do not take supplemental
vitamin K, and consult your physician about safe intakes of dark
green vegetables.
Vitamin D. You can
take all the calcium in the world, but without sufficient vitamin
D, you won’t absorb it. One way to get vitamin D is from sunlight.
Sunlight on the skin stimulates the body to manufacture vitamin
D. I recommend supplementing with 800 IU per day.
Vitamin C (ascorbic acid)
helps keep bones strong. This amazing nutrient is necessary for
the formation of collagen in connective tissue and for stimulating
cells that build bone. I recommend 1,000–3,000 mg of vitamin C daily
for all women, preferably in the more alkaline mineral-buffered
form. It should be taken in divided doses during the day.
Other Key Nutrients
Fructooligosaccharides (FOS)
is a food-based fiber that supports optimum calcium and magnesium
absorption in your gut and intestines. I recommend 1,000 mg twice
daily with your other bone-supporting nutrients.
Rehmannia glutinosa extract.
This herb has been used in Eastern Asia for more than 2,000 years
as a “yinizing agent” that supports the optimal balance between
kidney and bone health. I recommend 400 mg daily
Chondroitin sulfate is
one of the essential components of collagen. It is also a major
component of cartilage and helps support joint function. Take 200
mg of chondroitin sulfate, twice daily with food. To also help support
the joints that cradle the bone, take 600 mg glucosamine sulfate,
twice daily with a meal, in addition to your daily multi.
To learn more about Dr. Lark’s top recommendation
for bone health, click
here.
Maintaining healthy bone density is a lifelong
program, influenced by such factors as good nutrition, weight-bearing
exercise, and proper hormone secretion. If your body doesn’t get
enough exercise or the appropriate combination of nutrients, it
cannot properly build and maintain healthy bones.
Our understanding of bone is constantly changing
and growing, like bone itself. I share the latest news on bone health
(and other important health topics for women) with subscribers of
my monthly newsletter, Women's Wellness Today. For my complete
Bone Health Program, including essential diet and hormone recommendations
for bones, read my special report, The 21-Day Bone Miracle,
which you’ll have immediate access to when you subscribe online.
Click here
to learn more.
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