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Harvard T.H. Chan School of Public Health > The Nutrition Source > Calcium: What’s Best for Your Bones and Health?
THE NUTRITION SOURCE
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Calcium: What’s Best for Your Bones and Health?
milk
Table of Contents
Introduction
What Is Calcium, and Where Do We Get It?
Growing Healthy Bones
What Is Osteoporosis
How Can Osteoporosis Be Slowed Down?
Preventing Bone Loss in Adulthood
Should You Get Calcium from Milk?
The Bottom Line: Recommendations for Calcium Intake and Bone Health
References
Introduction
Those advertisements pushing milk as the answer to strong bones are almost inescapable. But does “got milk?” really translate into “got strong bones?”
The pro-milk faction believes that increased calcium intake—particularly in the form of the currently recommended three glasses of milk per day—will help prevent osteoporosis, the weakening of bones. Each year, osteoporosis leads to more than 1.5 million fractures, including 300,000 broken hips.
On the other side are those who believe that consuming a lot of milk and other dairy products will have little effect on the rate of fractures but may contribute to problems such as heart disease or prostate cancer.
Which view is right? The final answers aren’t in. But here is a summary of what’s currently known about calcium and its effects on the body.
What Is Calcium, and Where Do We Get It?
Calcium is a mineral that the body needs for numerous functions, including building and maintaining bones and teeth, blood clotting, the transmission of nerve impulses, and the regulation of the heart’s rhythm. Ninety-nine percent of the calcium in the human body is stored in the bones and teeth. The remaining 1 percent is found in the blood and other tissues.
The body gets the calcium it needs in two ways. One is by eating foods or supplements that contain calcium. Good sources include dairy products, which have the highest concentration per serving of highly absorbable calcium, and dark leafy greens or dried beans, which have varying amounts of absorbable calcium. Calcium supplements often contain vitamin D; taking calcium paired with vitamin D seems to be more beneficial for bone health than taking calcium alone.
A to Z indexSearch for: Search… Harvard T.H. Chan School of Public HealthThe Nutrition SourceHarvard T.H. Chan School of Public Health > The Nutrition Source > Calcium: What’s Best for Your Bones and Health?THE NUTRITION SOURCEexpand child menuSearch for:expand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuexpand child menuCalcium: What’s Best for Your Bones and Health?milkTable of ContentsIntroductionWhat Is Calcium, and Where Do We Get It?Growing Healthy BonesWhat Is OsteoporosisHow Can Osteoporosis Be Slowed Down?Preventing Bone Loss in AdulthoodShould You Get Calcium from Milk?The Bottom Line: Recommendations for Calcium Intake and Bone HealthReferencesIntroductionThose advertisements pushing milk as the answer to strong bones are almost inescapable. But does “got milk?” really translate into “got strong bones?”The pro-milk faction believes that increased calcium intake—particularly in the form of the currently recommended three glasses of milk per day—will help prevent osteoporosis, the weakening of bones. Each year, osteoporosis leads to more than 1.5 million fractures, including 300,000 broken hips.On the other side are those who believe that consuming a lot of milk and other dairy products will have little effect on the rate of fractures but may contribute to problems such as heart disease or prostate cancer.
Which view is right? The final answers aren’t in. But here is a summary of what’s currently known about calcium and its effects on the body.
What Is Calcium, and Where Do We Get It?
Calcium is a mineral that the body needs for numerous functions, including building and maintaining bones and teeth, blood clotting, the transmission of nerve impulses, and the regulation of the heart’s rhythm. Ninety-nine percent of the calcium in the human body is stored in the bones and teeth. The remaining 1 percent is found in the blood and other tissues.
The body gets the calcium it needs in two ways. One is by eating foods or supplements that contain calcium. Good sources include dairy products, which have the highest concentration per serving of highly absorbable calcium, and dark leafy greens or dried beans, which have varying amounts of absorbable calcium. Calcium supplements often contain vitamin D; taking calcium paired with vitamin D seems to be more beneficial for bone health than taking calcium alone.
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