{"id":3992,"date":"2012-08-16T12:00:53","date_gmt":"2012-08-16T12:00:53","guid":{"rendered":""},"modified":"2019-07-01T14:36:19","modified_gmt":"2019-07-01T18:36:19","slug":"part-2-other-foods-and-nutrients-help-and-hurt-your-bones-2","status":"publish","type":"post","link":"https:\/\/foodmedcenter.org\/zh_hk\/part-2-other-foods-and-nutrients-help-and-hurt-your-bones-2\/","title":{"rendered":"Part 2: Other Foods and Nutrients That Help and Hurt Your Bones"},"content":{"rendered":"
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Part 2: Other Foods and #Nutrients<\/a> That Help and Hurt Your Bones<\/strong><\/p>\n

This is the second of a two-part series on the impact of #nutrition<\/a> and #diet<\/a> on #bone health<\/a>. The first part focused on general bone health and calcium. The second focuses on other foods and nutrients other than calcium that help and hurt bone health.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

What nutrients do I need, aside from calcium, to keep bones strong?<\/strong>
\nVitamin D:<\/strong> According to J. Edward Puzas, Ph.D., a professor of orthopedics at the University of Rochester Medical Center, \u201cThe main function of vitamin D is to assist the intestine in calcium absorption. Without it, even though a person consumes calcium, the calcium may not enter the circulation.\u201d Other than calcium, experts consider vitamin D3 (cholecalciferol) \u2014 a form of vitamin D that occurs in fish-liver oils and has a slightly different molecular structure from vitamin D2 \u2014 to be the most important nutrient in helping bone health.<\/p>\n

Vitamin D has many functions: It stimulates the synthesis of calcium-transporting mechanisms in the intestine to facilitate absorption of calcium; it enhances osteoblast (bone-forming cell) differentiation to aid in bone formation; and new evidence shows that it may also help preserve muscle mass and decrease the incidence of certain cancers, says Puzas. And although the recommended daily dose is just 400 international units, Robert R. Recker, M.D., a professor of medicine and director of the Osteoporosis Research Center at the School of Medicine Creighton University, recommends 1,000 international units per day of vitamin D3. Elderly people who do not go outside much and who have little dietary intake of calcium may require as much as 2,000 international units per day in the form of supplements.<\/p>\n

There are very few natural food sources of vitamin D (e.g., cod liver oil, tuna fish and salmon); however, the best source is limited sun exposure. Exposure to sunlight provides most humans with their vitamin D requirement. Complete cloud cover halves the energy of UV rays, and shade reduces it by 60 percent. Industrial pollution, which increases shade, also decreases sun exposure and may contribute to the development of rickets in individuals with insufficient dietary intake of vitamin D.<\/p>\n

Sunscreens with a sun protection factor (SPF) of 8 or greater will block UV rays that produce vitamin D, but it is still important to routinely use sunscreen to help prevent skin cancer and other negative consequences of excessive sun exposure. An initial exposure to sunlight of 10 to 15 minutes allows adequate time for vitamin D synthesis and should be followed by the application of a sunscreen with an SPF of at least 15 to protect the skin.<\/p>\n

Vitamin K:<\/strong> Some recent studies suggest that the combination of calcium, vitamin D and K is better for bone health than calcium alone or just calcium plus vitamin D. Vitamin K helps bone actually hold onto the calcium it has. Research says that it creates a biochemical reaction in a bone protein called osteocalin and helps the protein bind to the calcium and, therefore, helps to build and maintain bone.<\/p>\n

Exactly how much vitamin K is needed to perform this function is still being researched, but the recommended daily allowance (RDA) is 65 micrograms for women and 80 micrograms for men. Luckily, vitamin K can be found in abundance in dark green vegetables, such as spinach and broccoli, and some oils, such as soybean oil. For an idea of how much you get for what you eat, two servings of broccoli or one serving of spinach provide four to five times what you need in a day \u2014 so eat your greens!<\/p>\n

Potassium:<\/strong> Higher potassium intake, primarily from fruits and vegetables, has been associated with higher baseline bone mass and less bone loss, says Dorothy Teegarden, Ph.D., a professor of nutrition at Purdue University. \u201cPotassium influences calcium homeostasis by promoting urinary conservation and lowering excretion of calcium. Thus, low-potassium diets increase urinary calcium losses, and high-potassium diets reduce it.<\/p>\n

\u201cIn addition, increased intake of potassium may decrease the higher bone resorption that can be caused by high-salt diets,\u201d she adds. Potassium salts also help neutralize bone-depleting metabolic acids, says Primal Kaur, M.D., director of the Osteoporosis Clinic at Temple University School of Medicine in Philadelphia. Dr. Teegarden suggests about 4.7 grams per day for adults over the age of 19. Get your potassium from chicken, turkey, fish, fruits (such as bananas, raisins and cantaloupe) and vegetables (such as celery, carrots and potatoes).<\/p>\n

Magnesium:<\/strong> According to United States Surgeon General\u2019s Office, 60 percent of the magnesium in our bodies is found in our bones in combination with calcium and phosphorus. Magnesium appears to enhance our bone quality. Studies suggest that it may improve bone mineral density, and not getting enough may interfere with our ability to process calcium. The RDA for women is 320 mg and for men 420 mg. Green vegetables are a good dietary source of magnesium.<\/p>\n

Protein:<\/strong> According to Teegarden, protein is essential for bone health, but that doesn\u2019t mean we should be adding more to our diet. Most adults get enough protein. The Institute of Medicine (IOM) recommends that adults consume 10\u201335 percent of total daily calories from proteins. And keep in mind, too much protein is associated with an increase in urinary calcium loss; although, so far, according to Teegarden, research has not shown increased protein consumption to be associated with increased risk for fractures.<\/p>\n

Are there foods that damage bone health? <\/strong>
\nAlcohol:<\/strong> Regular consumption of 2-3 ounces a day may cause bone damage even in young adults. Consuming seven drinks per week is associated with an increased risk of low bone mass or density. Heavy drinkers are more prone to bone loss and fractures, says Tejaswini Rao, Ph.D., R.D., a professor of nutrition at State University of New York at Buffalo. However, according to Teegarden, \u201cThere is some evidence that moderate alcohol intake may be associated with higher bone mass, so this area remains controversial.\u201d<\/p>\n

Caffeine:<\/strong> One should consume fewer than 400 mg of caffeine daily. Excess caffeine increases the loss of calcium in the urine. A 6-ounce cup of coffee has about 100 mg of caffeine \u2014 although the actual amount will vary depending on brewing time. Note that tea, soft drinks and various medications also contain caffeine, says Rao. For example, one 12-ounce can of Coca-Cola has 34 mg of caffeine; a Mountain Dew has 55 mg; an 8.2-ounce can of Red Bull has 80 mg; and an 8-ounce cup of green tea has about 15 mg of caffeine.<\/p>\n

Sodium:<\/strong> High dietary sodium intake can lead to greater urinary calcium excretion.<\/p>\n

Vitamin A:<\/strong> Too much vitamin A has been linked to bone loss and an increase in the risk of hip fractures. Scientists believe that excessive amounts of vitamin A trigger an increase in osteoclasts, the cells that break down bone. They also believe that too much vitamin A may interfere with vitamin D, which plays an important role in preserving bone. Retinol is the form of vitamin A that causes concern. So, while you need vitamin A for proper vision, an excess is detrimental to bones. Ruth Freeman, M.D., a professor of medicine at Albert Einstein College of Medicine Montefiore Medical Center, recommends a maximum of 5,000 international units. \u201cIt is present in many foods, such as carrots and red and yellow vegetables, so people who eat a mixed diet and adequate vegetables do not need to supplement any vitamin A.\u201d<\/p>\n

Are there any medications that reduce bone mass? <\/strong>
\nLong-term use of glucocorticoids (commonly known as hydrocortisone or cortisol) \u2014 medications that are prescribed for a wide range of diseases, including arthritis, asthma, lupus and other diseases of the lung, kidney and liver \u2014 can lead to loss of bone density and fractures.<\/p>\n

Other drugs of concern: certain anti-seizure drugs such as Dilantin, barbiturates, gonadotropin- releasing hormone (used to treat endometriosis), excess use of aluminum-containing antacids, certain cancer treatments and excessive thyroid hormone. Talk to your doctor if you are taking any of these medications. Do not stop taking them, and do not change your dosage without talking to your doctor, cautions Rao.<\/p>","protected":false},"excerpt":{"rendered":"

What nutrients do I need, aside from calcium, to keep bones strong?<\/strong>
Vitamin D:<\/strong> According to J. Edward Puzas, Ph.D., a professor of orthopedics at the University of Rochester Medical Center, \u201cThe main function of vitamin D is to assist the intestine in calcium absorption. Without it, even though a person consumes calcium, the calcium may not enter the circulation.\u201d Other than calcium, experts consider vitamin D3 (cholecalciferol) \u2014 a form of vitamin D that occurs in fish-liver oils and has a slightly different molecular structure from vitamin D2 \u2014 to be the most important nutrient in helping bone 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The Center conducts extensive research on longevity and healthspan, exploring how nutrition and lifestyle interventions can extend both lifespan and the number of years lived in good health. Core to its work is the dissemination of reliable, peer-reviewed information on nutrition, longevity science, and healthy aging, as well as ensuring universal access to healthy, affordable food, and creating a more equitable, smart food system that will improve health outcomes. A distinguished scholar and influential figure in the fields of public health, nutrition, and food policy, Dr. Platkin is a Distinguished Lecturer (Emeritus) at City University of New York at Hunter College. He has both a Masters Degree and a Ph.D. in Public Health, specializing in nutrition. He also has a law degree, and throughout his career has been dedicated to a multidisciplinary approach to academic research, community health interventions and complex health and policy issues, encompassing law, public health, and nutrition. Dr. Platkin has occupied influential roles in public health, notably serving as the Executive Director of the Hunter College NYC Food Policy Center from 2012 to 2023. During this time, he played a pivotal role in shaping food-related policies in New York City. His entrepreneurial leadership extends across multiple sectors: he is the co-founder and strategic advisor to Diversion Books (DiversionBooks.com), a book publishing company; Chief Strategy Officer at PopCom Health (PopComHealth.com); founder and managing director of Magoo Properties (MagooProperties.com); and co-founder and director of MedicalBx (MedicalBx.com), which develops boutique hospitals and mobile medical clinics to enhance healthcare access in underserved areas. His leadership also extended to co-founding and operating organizations like Integrated Wellness Solutions, where he leveraged innovative approaches and technology to enhance health and wellness. He is a powerful advocate for healthier communities and for shaping the field of nutrition and food policy in lasting ways. Dr. Platkin has made significant contributions to the field of public health and nutrition issues through his research. He has published in several peer-reviewed scientific and medical journals, including the Journal of Nutrition Education and Behavior, the Journal of Obesity and Weight Loss, the International Journal of Nutrition and Dietetics, BioMed Central (BMC) Obesity; and the Journal of the Academy of Nutrition and Dietetics. He is the author of eight books. His forthcoming book, Eat to Cheat Death: Using Food as Medicine to Live Better, Live Stronger, Live Healthier, and Live Longer (Simon & Schuster, 2027), synthesizes cutting-edge research on nutrition and longevity. His first book, Breaking the Pattern (Red Mill Press 2002, Plume 2004), was a bestseller in hardcover; it has been used by addiction clinics to assist patients with resolving drug and alcohol-related issues, and more than 20 universities around the country use it as a text to teach behavioral change techniques to nutrition and dietetic counseling interns. His other titles include The Diet Detective's Count Down (Simon and Schuster, 2007), The Diet Detective's Calorie Bargain Bible (Simon and Schuster, 2008), The Diet Detective's Diet Starter Kit (Diversion, 2011), and The Diet Detective's All-American Diet (Rodale, 2012). Charles Platkin's contributions to the fields of health, nutrition, and public policy have earned him recognition and numerous accolades. He was cited by the New York State Governor for his contributions to the development of nutrition materials for NYS Mentoring in March 2019, showcasing his dedication to public health and education. He was also honored as a Politics of Food honoree by City & State in November 2018 for his commitment to promoting healthy eating and food policy reform. Additionally, Dr. Platkin's success as a principal investigator and grant recipient reflects his impact in the field, as he has secured multiple grants to support research and initiatives related to food policy and nutrition. Beyond his academic and research pursuits, Charles Platkin has engaged with the public through various media outlets. He was the host and executive producer of WE TV's series I Want To Save Your Life, where he helped individuals transform their health through nutrition and lifestyle interventions. His syndicated health, nutrition, and fitness column, the Diet Detective, appeared in more than 150 daily newspapers and media outlets for nearly 20 years. His appearances on thousands of radio shows, in newspapers, magazines, and online platforms have reached a broad audience. His commitment to educating the public underscores his dedication to public health. 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Longevity"},"image":{"@id":"https:\/\/foodmedcenter.org\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/foodmedcenter","https:\/\/x.com\/foodmedcenter"]},{"@type":"Person","@id":"https:\/\/foodmedcenter.org\/#\/schema\/person\/56244d57478b54543e75ed8c889935b8","name":"\u67e5\u723e\u65af\u00b7\u666e\u62c9\u7279\u91d1\uff0c\u54f2\u5b78\u535a\u58eb\u3001\u6cd5\u5b78\u535a\u58eb\u3001\u516c\u5171\u885b\u751f\u78a9\u58eb","image":{"@type":"ImageObject","inLanguage":"zh-HK","@id":"https:\/\/foodmedcenter.org\/wp-content\/uploads\/Charles-Platkin-PhD-2025-500-96x96.jpg","url":"https:\/\/foodmedcenter.org\/wp-content\/uploads\/Charles-Platkin-PhD-2025-500-96x96.jpg","contentUrl":"https:\/\/foodmedcenter.org\/wp-content\/uploads\/Charles-Platkin-PhD-2025-500-96x96.jpg","caption":"Charles Platkin, PhD, JD, MPH"},"description":"Dr. Charles Platkin is the founder and Executive Director of the Center For Food As Medicine & Longevity (FoodMedCenter.org), a not-for-profit organization working to bridge the gap between traditional allopathic medicine and the use of food as medicine in the prevention, treatment, and management of disease. The Center conducts extensive research on longevity and healthspan, exploring how nutrition and lifestyle interventions can extend both lifespan and the number of years lived in good health. Core to its work is the dissemination of reliable, peer-reviewed information on nutrition, longevity science, and healthy aging, as well as ensuring universal access to healthy, affordable food, and creating a more equitable, smart food system that will improve health outcomes. A distinguished scholar and influential figure in the fields of public health, nutrition, and food policy, Dr. Platkin is a Distinguished Lecturer (Emeritus) at City University of New York at Hunter College. He has both a Masters Degree and a Ph.D. in Public Health, specializing in nutrition. He also has a law degree, and throughout his career has been dedicated to a multidisciplinary approach to academic research, community health interventions and complex health and policy issues, encompassing law, public health, and nutrition. Dr. Platkin has occupied influential roles in public health, notably serving as the Executive Director of the Hunter College NYC Food Policy Center from 2012 to 2023. During this time, he played a pivotal role in shaping food-related policies in New York City. His entrepreneurial leadership extends across multiple sectors: he is the co-founder and strategic advisor to Diversion Books (DiversionBooks.com), a book publishing company; Chief Strategy Officer at PopCom Health (PopComHealth.com); founder and managing director of Magoo Properties (MagooProperties.com); and co-founder and director of MedicalBx (MedicalBx.com), which develops boutique hospitals and mobile medical clinics to enhance healthcare access in underserved areas. His leadership also extended to co-founding and operating organizations like Integrated Wellness Solutions, where he leveraged innovative approaches and technology to enhance health and wellness. He is a powerful advocate for healthier communities and for shaping the field of nutrition and food policy in lasting ways. Dr. Platkin has made significant contributions to the field of public health and nutrition issues through his research. He has published in several peer-reviewed scientific and medical journals, including the Journal of Nutrition Education and Behavior, the Journal of Obesity and Weight Loss, the International Journal of Nutrition and Dietetics, BioMed Central (BMC) Obesity; and the Journal of the Academy of Nutrition and Dietetics. He is the author of eight books. His forthcoming book, Eat to Cheat Death: Using Food as Medicine to Live Better, Live Stronger, Live Healthier, and Live Longer (Simon & Schuster, 2027), synthesizes cutting-edge research on nutrition and longevity. His first book, Breaking the Pattern (Red Mill Press 2002, Plume 2004), was a bestseller in hardcover; it has been used by addiction clinics to assist patients with resolving drug and alcohol-related issues, and more than 20 universities around the country use it as a text to teach behavioral change techniques to nutrition and dietetic counseling interns. His other titles include The Diet Detective's Count Down (Simon and Schuster, 2007), The Diet Detective's Calorie Bargain Bible (Simon and Schuster, 2008), The Diet Detective's Diet Starter Kit (Diversion, 2011), and The Diet Detective's All-American Diet (Rodale, 2012). Charles Platkin's contributions to the fields of health, nutrition, and public policy have earned him recognition and numerous accolades. He was cited by the New York State Governor for his contributions to the development of nutrition materials for NYS Mentoring in March 2019, showcasing his dedication to public health and education. He was also honored as a Politics of Food honoree by City & State in November 2018 for his commitment to promoting healthy eating and food policy reform. Additionally, Dr. Platkin's success as a principal investigator and grant recipient reflects his impact in the field, as he has secured multiple grants to support research and initiatives related to food policy and nutrition. Beyond his academic and research pursuits, Charles Platkin has engaged with the public through various media outlets. He was the host and executive producer of WE TV's series I Want To Save Your Life, where he helped individuals transform their health through nutrition and lifestyle interventions. His syndicated health, nutrition, and fitness column, the Diet Detective, appeared in more than 150 daily newspapers and media outlets for nearly 20 years. His appearances on thousands of radio shows, in newspapers, magazines, and online platforms have reached a broad audience. His commitment to educating the public underscores his dedication to public health. He received his undergraduate degree from Cornell University, a law degree from Fordham University, a Master of Public Health and a Ph.D. in Public Health from Florida International University in Miami Florida.","sameAs":["https:\/\/foodmedcenter.org","foodmedcenter","https:\/\/www.linkedin.com\/in\/platkin","https:\/\/www.youtube.com\/@foodmedcenter","https:\/\/en.wikipedia.org\/wiki\/Charles_Stuart_Platkin"],"honorificPrefix":"Dr.","honorificSuffix":"PhD, JD, MPH","url":"https:\/\/foodmedcenter.org\/zh_hk\/author\/charles-platkin\/"}]}},"modified_by":null,"_links":{"self":[{"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/posts\/3992","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/comments?post=3992"}],"version-history":[{"count":0,"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/posts\/3992\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/media\/9528"}],"wp:attachment":[{"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/media?parent=3992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/categories?post=3992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/foodmedcenter.org\/zh_hk\/wp-json\/wp\/v2\/tags?post=3992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}