Healthy pregnancy
Learning Center
Hypothyroidism: Should I take iodine supplements?
Although iodine deficiency can cause hypothyroidism, this deficiency is rare in the United States.
Hypothyroidism: Can calcium supplements interfere with treatment?
Calcium supplements can interfere with how the body absorbs medications used to treat hypothyroidism.
Hypothyroidism diet: Can certain foods increase thyroid function?
There's no evidence that eating or avoiding certain foods will help the thyroid work better in people with underactive thyroid.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
High-dose flu vaccines: How are they different from other flu vaccines?
High-dose flu vaccines are flu vaccines for older people.
High cholesterol in children: How is it treated?
High cholesterol in children can lead to narrowed and hardened arteries, increasing the risk of heart disease later in life.
Heavy periods: Can folic acid help?
Heavy periods may cause iron deficiency anemia. Folic acid supplements can't treat that.
Heartburn medicines and B-12 deficiency
Acid-controlling medicines may do more than prevent heartburn. They also may keep vitamin B-12 from being absorbed.
Headaches during pregnancy: What's the best treatment?
Here's help with preventing or easing this common type of pain while you're pregnant.
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
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