Healthy diets
Learning Center
Doppler ultrasound: What is it used for?
A Doppler ultrasound measures blood flow and pressure in blood vessels.
Diverticulitis: Can certain foods trigger an attack?
Contrary to popular belief, no specific foods are known to trigger diverticulitis attacks.
Cholesterol test kits: Are they accurate?
Home cholesterol test kits are often as accurate as the test a health care professional uses, but the quality of results can depend on how well you follow the directions for the test.
Cholesterol ratio or non-HDL cholesterol: Which is most important?
Non-HDL cholesterol may be more important than cholesterol ratio.
Cholesterol level: Can it be too low?
A high cholesterol level is unhealthy — rarely, very low cholesterol may pose risks, too.
Cervical dysplasia: Is it cancer?
Learn what to expect if a Pap test shows cells that look different from typical cervical cells. Follow-up tests might include HPV testing and colposcopy.
Canola oil: Does it contain toxins?
Health concerns about canola oil abound on the internet but are unfounded.
COVID-19 variants: What's the concern?
The virus that causes COVID-19 has changed over time, which has affected prevention, diagnosis and treatment of COVID-19.
Butter vs. margarine: Which is better for my heart?
Margarine usually tops butter for heart health. But not all margarines are created equal.
Blood glucose monitors: What factors affect accuracy?
Consider these factors when measuring blood sugar levels with blood glucose monitors.
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