The Good and Bad of Iron

Many people worry about getting too little iron—for good reason. Iron, after all, is essential to life. Most iron in our bodies is incorporated in hemoglobin, which...

Copper Safety

Q: I’ve heard that too much copper can be harmful. Is the amount in a basic multivitamin safe? A: Yes. This trace mineral is essential for energy production,...

Calcium Concerns?

Don’t worry that the calcium you consume from food or supplements will build up in coronary arteries and cause atherosclerosis. Such coronary calcification is a marker for increased...

Strontium

Q: Can strontium improve bone strength, especially in people with osteoporosis? A: Apparently. Found in small amounts in soil, drinking water, and food, this chemical element is not...

Beyond Calcium: Bone Nutrition

Calcium is the basic building block of bone, but bones need a great many other nutrients in order to stay strong. Vitamin D Calcium absorption requires vitamin D. If...

Potassium Pills

Q. You have often written about the benefits of potassium, yet you advise against potassium supplements. Why? A. While there’s no doubt that a diet rich in potassium...

Calcium Before Bone Test?

If you’re scheduled to have a bone mineral density test that includes the spine, don’t take a calcium supplement beforehand. Bany clinics as well as the American College...

Selenium Strikes Out

Many people take selenium supplements, encouraged by some promising early research suggesting that this antioxidant mineral may help prevent cancer (notably prostate) and heart disease. In recent years,...

Do You Need More Iron?

Low iron intake over a long period can deplete iron stores— especially if your body is losing blood, as in menstruation. Early on, there typically are no...

Can Calcium Pills Hurt Your Heart?

Of all dietary supplements, calcium has probably been the least controversial. Even doctors who are generally unenthusiastic about supplements are likely to advise many patients to take...
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