Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Dr. Lee was born in Shanghai, China, and received his college and medical training in the United States. He is fluent in English and three Chinese dialects. He graduated with chemistry departmental honors from Harvey Mudd College. He was appointed president of AOA society at UCLA School of Medicine. He underwent internal medicine residency and gastroenterology fellowship training at Cedars Sinai Medical Center.
Catherine Burt Driver, MD, is board certified in internal medicine and rheumatology by the American Board of Internal Medicine. Dr. Driver is a member of the American College of Rheumatology. She currently is in active practice in the field of rheumatology in Mission Viejo, Calif., where she is a partner in Mission Internal Medical Group.
Building strong and healthy bones requires an adequate dietary intake of calcium beginning in childhood and adolescence for both sexes. Most importantly, however, a high dietary calcium intake or taking calcium supplements alone is not sufficient in treating osteoporosis and should not be viewed as an alternative to or substituted for more potent prescription medications for osteoporosis. In the first several years after menopause, rapid bone loss may occur even if calcium supplements are taken.
The following calcium
intake has been recommended by the National Institutes of Health Consensus
Conference on Osteoporosis for all people, with or without osteoporosis:
800 mg/day for children 1-10
years of age
1,000 mg/day for men, premenopausal women, and
postmenopausal women also taking estrogen
1,200 mg/day for teenagers and young adults 11-24
years of age
1,500 mg/day for postmenopausal women not taking
estrogen
1,200 mg-1,500 mg/day for pregnant and nursing mothers
The total daily intake of calcium should not exceed 2,000 mg.
Daily calcium intake can be
calculated by the following method:
Excluding dairy products, the average American diet contains approximately
250 mg of calcium.
There is approximately 300 mg of calcium in an 8-ounce glass of milk.
There is approximately 450 mg of calcium in 8 ounces of plain yogurt.
There is approximately 130 mg of calcium in 1 cup of cottage cheese.
There is approximately 200 mg of calcium in 1 ounce of cheddar cheese.
There is approximately 90 mg of calcium in ½ cup of vanilla ice cream.
There is approximately 300 mg of calcium in 8 ounces of calcium-fortified orange juice.
Unfortunately, surveys have shown that the average woman in the U.S. is consuming less than 500 mg of calcium per day in their diet, less than the recommended amounts. Additional calcium can be obtained by drinking more milk and eating more yogurt or cottage cheese or by taking calcium supplement tablets as well from calcium-fortified foods, such as orange juice.
The various calcium supplements contain different amounts
of elemental calcium (the actual amount of calcium in the supplement). For
example, Caltrate, Os-Cal, and Tums are calcium carbonate salts. Each 1,250 mg of
calcium carbonate salt tablet (such as
Caltrate 600 mg, Os-Cal 500 mg, or Tums 500 mg extra strength) contains 500 mg
of elemental calcium. A person who needs 1,000 mg/day of calcium supplement can
take one tablet of Tums 500 mg extra strength (containing 500 mg of elemental
calcium) twice daily with meals.
The calcium carbonate supplements are best taken in small divided doses with meals since the intestines may not be able to reliably absorb more than 500 mg of calcium all at once. Therefore, the best way to take 1,000 mg of a calcium supplement is to divide it into two doses. Likewise, a dosage of 1,500 mg should be split into three doses.
Calcium supplements are safe and generally well tolerated. Side effects are indigestion and constipation. If constipation and indigestion occur with calcium carbonate supplements, calcium citrate (Citracal) can be used. Some patients have difficulty swallowing calcium tablets. In this situation, chewable candy-like calcium in the form of Viactiv is available. Certain medications can interfere with the absorption of calcium carbonate. Examples of such medications include proton-pump inhibitors such as omeprazole (Prilosec), lansoprazole (Prevacid), lansoprazole (Protonix), and rabeprazole (Aciphex), which are used in treating GERD (acid reflux) or peptic ulcers. When these medications are being taken, calcium citrate is preferred.
Many "natural" calcium carbonate preparations,
such as oyster shells or bone meal, may contain high levels of lead or other
harmful elements and should be avoided.
Osteoporosis - Symptoms at Onset of DiseaseQuestion: The symptoms of osteoporosis can vary greatly from patient to patient. What were your symptoms at the onset of your disease?
There are many causes of back pain. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area.
Low testosterone can affect both men and women. Causes of low testosterone in males include undescended testicles and injury to the scrotum. Low testosterone in females includes ovary conditions. Treatment for low testosterone in men includes testosterone replacement therapy. Currently there is no FDA approved testosterone treatment for women.
Hyperthyroidism is an excess of thyroid hormone resulting from an overactive thyroid gland. Symptoms can include increased heart rate, weight
loss, depression, and cognitive slowing. Treatment is by medication, the use of
radioactive iodine, thyroid surgery, or reducing the dose of thyroid hormone.
Menopause is the time in a woman's life when menstrual periods permanently stop, also called the “change of life." Menopause symptoms include hot flashes, night sweats, irregular vaginal bleeding, vaginal dryness, painful intercourse, urinary incontinence, weight gain, and emotional symptoms such as mood swings. Treatment of menopausal symptoms varies, and should be discussed with your physician.
Celiac disease is a result of an immune reaction to gluten, a protein found in wheat or related grains and present in many foods that we eat. Celiac disease causes impaired absorption and digestion of nutrients through the small intestine. Signs and symptoms of celiac disease include malabsorbption (diarrhea, foul smelling gas, bloating, and increased amounts of fat in the stool) and malnutrition (weight loss, edema, anemia, bruising easily, neuropathy, and infertility). Treatment for celiac disease is a gluten free diet, and at times if necessary, medications
Dyspepsia (indigestion) is a functional disease in which the gastrointestinal organs, primarily the stomach and first part of the small intestine, function abnormally. It is a chronic disease in which the symptoms fluctuate infrequency and intensity. Symptoms of dyspepsia include upper abdominal pain, belching, nausea, vomiting, abdominal bloating, early satiety, and abdominal distention (swelling). These symptoms are most often provoked by eating.
Cushing's syndrome, sometimes referred to as hypercortisolism, is a hormonal disorder caused by prolonged exposure to high levels of the hormone cortisol. Symptoms may include obesity, thinning arms and legs, a rounded face, and increased fat around the neck. Some causes of Cushing's syndrome is from taking glucocorticoid hormones such as prednisone for inflammatory diseases. Treatment for Cushing's syndrome depends on the cause.
Fractures occur when bone cannot withstand the outside forces applied to the bone. Fractures can be open or closed. Types of fractures include: greenstick, spiral, comminuted, transverse, compound, or vertebral compression. Common fractures include: stress fracture, compression fracture, rib fracture, and skull fracture. Treatment depends upon the type of fracture.
There are several bones in the foot, and these bones can be broken (fractured) in a variety of ways. Falling from heights, dropping heavy objects on the foot, or stress fractures from running or walking. Treatment of a broken foot depends on what bone in the foot is broken.
Osteopenia is a bone condition characterized by bone loss that is not as severe as in osteoporosis. Bone fracture is the typical symptom of osteopenia, though the condition may be present without symptoms. Treatment involves lifestyle modifications (quitting smoking, not drinking in excess) and ensuring an adequate intake of vitamin D and calcium.
Hyperparathyroidism is a disorder of the parathyroid glands. There are two types of hyperparathyroidism, primary and secondary. When the parathyroid glands produce too much hormone, hyperparathyroidism is the resulting condition. Most cases of hyperparathyroidism have no evident cause. Symptoms include fatigue, weakness, depression, loss of appetite, nausea, vomiting, constipation, or confusion. Increased calcium and phosphorous excretion may cause kidney stones. The main treatment of hyperparathyroidism is parathyroidectomy.
Vitamins are organic substances that are essential for the proper growth and functioning of the body. Calcium is a mineral essential for healthy bones and is also important for muscle contraction, heart action, and normal blood clotting.
Patients with celiac disease are required to eat a gluten-free diet. Gluten is found in rye, barley, and wheat. Gluten damages the intestine in patients with celiac disease. Some mediations contain gluten, so careful monitoring of products consumed is imperative. Patients with celiac disease are also at risk for developing nutritional deficiencies. The information in this article contains both foods that contain gluten, and foods that do not contain gluten.
Kyphosis is outward curvature of the thoracic spine (upper back). Abnormal kyphosis results in the appearance of a hunchback, which is accompanied by back pain, stiffness, and muscle fatigue in the back. There are three types of abnormal kyphosis: postural, Scheuermann's, and congenital kyphosis. Postural kyphosis is caused by poor posture and a weakening of the back's muscles and ligaments. Scheuermann's kyphosis is caused by a structural deformity of the vertebrae. Congenital kyphosis is caused by an abnormal development of the vertebrae prior to birth. Treatment of kyphosis depends upon the type of kyphosis the patient has.
Premature ovarian failure (POS) is the cessation of normal functioning of the ovaries in women under the age of 40. Premature ovarian failure may be caused by follicle depletion or dysfunction. The most common symptom of premature ovarian failure are irregular periods. There is no "treatment" that will restore the ovarian function, but there are treatments that my relieve symptoms.
Women's health is an important topic area to guide a woman through the stages of her life, as well as knowing the conditions and diseases that may occur. Educating yourself so that the transitions into different phases of life is key to a healthy, happy, and productive life.
Loeys-Dietz syndrome is a syndrome is an inherited genetic syndrome characterized by aortic aneurysms in children. Children with Loeys-Dietz syndrome are at a greater risk of dying from the aortic aneurysms, because the aneurysms are prone to rupture at a smaller size than other aneurysms. Physical characteristics of the syndrome include early fusion of the skull bones, widely spaced eyes, and split uvula or cleft palate. Treatment includes surgical repair fo the aneurysms.
Enjoying a healthy diet helps to prevent diseases. A good diet also helps to control celiac disease, diabetes, and high blood pressure and maintain health by preventing loss of bone mass, muscle strength, and vitamin deficiencies.
Severe acute respiratory syndrome (SARS) is a respiratory disease caused by the coronavirus SARS-CoV. Symptoms include fever and shortness of breath. Patients with SARS often require oxygen and severe cases require mechanical ventilation.
Osteoporosis may be linked to bone loss in the jaw, which in turn, leads to tooth loss. Low bone density may result in ill-fitting dentures, tooth loss, and gum disease. Dental X-rays may be able to distinguish people with osteoporosis from those with normal bone density.
Disease prevention in women includes screening tests that are a basic part of prevention medicine. All screening tests
are commonly available through your general doctor. Some specialized tests may be available elsewhere.
Setting a good example for your children when it comes to diet and exercise will help them to make healthy decisions about nutrition and fitness. Eating calcium-rich foods and performing weight-bearing exercise will help your children prevent osteoporosis and fractures later in life.
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